IAG/IUG/IEG/CEG/LEG Series
Magnetic Circuit Protectors
99
100
103
108
110
111
115
117
Introduction
Poles
Handles
Configurations
Operating Characteristics
Delay Curves
Specifications
Decision Tables
INTRODUCTION
The Airpax™ IAG/IUG/IEG/CEG/LEG magnetic circuit protectors
provide low-cost power switching, reliable circuit protection
and accurate circuit control for equipment in the international
marketplace.
IEG models meet IEC spacing requirements which is mandatory
for equipment that must comply with IEC specifications 601 and
950 and VDE specifications 0804 and 0805. In addition, they are
UL Recognized as supplementary protectors per UL STD. 1077,
CSA Certified as supplementary protectors per CSA C22.2–No.
235, VDE Approved to VDE 0642 (EN60934), CCC Approved and CE
Compliant. IAG models are for those applications where the unit’s
inherent attributes are desired, but compliance with the various
standards is not required.
Designed using the latest in sensitive hydraulic magnetic
technology, the IAG/IUG/IEG/CEG/LEG line adapts itself to many
applications and environments. They’re ideal for data processing
and business machines, medical instrumentation, broadcast
equipment, vending and amusement machines, military
applications and wherever precision operation is required.
Temperature differences which affect fuses and other thermal
devices are not a concern.
One important feature of this protector line is a “trip free” action,
which means the circuit will trip in the presence of an overload
even though the handle is held in the ON position. The delay
mechanism senses the fault and the contacts open.
The IAG/IUG/IEG/CEG/LEG is available in a wide variety of
configurations including series, series with auxiliary switch,
shunt and relay with a choice of delays and ratings in either
DC, 50/60Hz or 400Hz versions. Handles come in seven different
colors and international markings are standard. Single or multi-
pole versions are available, with a variety of pole arrangements
to meet your specifications. Four pole models require a double
toggle handle. Units with a handle per pole come in one through
six pole assemblies.
IAG/IUG/IEG/CEG/LEG Series
Hydraulic Magnetic Circuit Protectors
IAG Series - Introduction http://airpax.sensata.com
99
1.660
[42.16]1.050
[26.67]
2X 0.156
[3.96]
+.25
-.00
15.88
+.010
-.000
.625
Single Pole Mounting Detail
SINGLE POLE CIRCUIT PROTECTOR
O
N
O
F
F
1.220
[31.00]
2.000
[
50.80]
.590
[15.00]
MAX.
2X 6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONA
L
.1.660
[42.16]
.750
[19.05]
.168
[4.27]
1.530
[
38.86]
.
230
[5.84]
Note: Tolerance ±.015 [.38] unless noted.
Dimensions in brackets [ ] are millimeters.
LEG Type Units Require Screw Terminals
IAG Series - Poles 100
IAG Series
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
32º
32
º
OFF
ON
2.075
[52.71]
MAX.
.690
[17.53]
.240
[6.10]
1.687
[42.85]
IAG/IUG/IEG/CEG/LEG
O
N
O
F
F
1.515
[38.48]
MAX.
O
N
O
F
F
2.265
[57.53]
MAX.
O
N
O
F
F
O
N
O
F
F
3.015
[76.58]
MAX.
1.660
[42.17]1.050
[26.68]
4X .156
[3.96]
+.25
-.00
+.010
-.000
2X .625
15.88
[
[
.750
[19.05].750
[19.05]
.750
[19.05]
.750
[19.05]
.750
[19.05]
.750
[19.05]
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13] unless noted.
*See Single Pole Mounting Detail for hole sizes and locations. LEG type units are
only available in one or two poles.
(Optional: Handle may be
located in Pole 1 instead
of Pole 2)
Two Pole* Three Pole* Four Pole*
Two Pole* Three Pole* Four Pole*
1.530
[38.86]
.230
[5.84]
LEG Type Units Require
Screw Terminals
MULTI-POLE CIRCUIT PROTECTORS
(IAG/IUG/IEG/CEG/LEG)
Two Pole Protectors
An assembly consisting of two single pole units, having their trip
mechanisms internally coupled and with a single toggle handle,
forms the IEG11 with quick-connect D.I.N.-style terminals.
Individual poles may differ in ratings, delays and internal
connections. An auxiliary switch may be included in either or
both poles, allowing you to mix SELV and hazardous voltages.
Rugged screw-type terminals can be provided, in which case the
designation would be IEG66. The IEGH offers a toggle handle for
each pole. LEG type units are avavailable only in one or two pole
configurations.
Three Pole and Four Pole Protectors
The three pole construction consists of three single pole units
assembled with an internal mechanical interlock which actuates
all units simultaneously. A single toggle handle operates all three
poles for quick and convenient control, or if preferred, a handle
per pole is available. The four pole construction consists of four
single pole units assembled with an internal mechanical
interlock which actuates all units simultaneously. A double
toggle handle operates all four poles. The individual poles need
not have identical characteristics and any series trip pole may
have an auxiliary switch. If screw-type terminals are required,
the breaker designation will be IEG666 for a three pole version
and IEG6666 for a four pole version.
Protector poles are numbered consecutively when viewed from
the terminal side, with the ON position up, starting with Pole #1
on the left side and proceeding to the right.
IAG/IUG/IEG/CEG/LEG Multi-Pole Circuit Breakers
IAG Series - Poles http://airpax.sensata.com
101
32º
32
º
OFF
ON
2.075
[52.70]
MAX.
.690
[17.53]
.240
[6.10]
1.687
[42.85]
3.015
[76.58]
MAX.
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
2.000
[50.80]
1.220
[31.00]
1.660
[42.16]
O
N
O
F
F
O
N
O
F
F
1.515
[38.48]
MAX.
.168
[4.27]
.590
[15.00]
MAX.
2X
4X 6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
.750
[19.05].750
[19.05]
.750
[19.05]
1.660
[42.16]1.050
[26.67]
4X .156
[3.96]
+.25
-.00
+.010
-.000
2X .625
15.87
.750
[19.05]
2.265
[57.53]
MAX.
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
.750
[19.05]
.750
[19.05]
IAGH/IUGH/IEGH/CEGH/LEGH Protectors
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
MULTI-POLE CIRCUIT PROTECTORS
(IAGH/IUGH/IEGH/CEGH/LEGH)
The IAGH/IUGH/IEGH/CEGH/LEGH two, three and four pole
models are available with a handle per pole. LEGH type units
are available only in two pole models.
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13] unless noted.
NOTE: We recommend machining slots into your panel for 2 or more
poles. This eliminates the need to dissemble/reassemble the handle
ties to be able to insert the handles thru indvidiually drilled holes. LEG
type units are only available in one or two poles.
LEG/LEGH Barriers (required)
In order to meet UL listing requirements, the LEG/LEGH two
pole model requires barriers. Available with a standard
straight barrier or an optional “Z” type barrier.
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
Standard Barrier
2-FRONT
Optional “Z” Barrier
2-FRONT
Two Pole Three Pole* Four Pole*
3.015
[76.58]
MAX.
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
2.000
[50.80]
1.220
[31.00]
1.660
[42.16]
O
N
O
F
F
O
N
O
F
F
1.515
[38.48]
MAX.
.168
[4.27]
.590
[15.00]
MAX.
2X
4X 6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
.750
[19.05].750
[19.05]
.750
[19.05]
1.660
[42.16]1.050
[26.67]
4X .156
[3.96]
+.25
-.00
+.010
-.000
2X .625
15.87
.750
[19.05]
2.265
[57.53]
MAX.
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
.750
[19.05]
.750
[19.05]
1.530
[38.86]
.230
[5.84]
LEG (Requires Screw Terminals)
*See Two Pole Mounting Detail for hole sizes and locations.
IAG Series - Poles 102
IAG Series
The IAGX/IUGX/IEGX/CEGX and IAGZX/IUGZX/IEGZX/CEGZX/
LEGZX styles offer two attractive rocker actuator versions of our
popular IAG/IUG/IEG/CEG/LEG family. Designed with the operator
in mind, each features handles with a concave surface and
aesthetic appearance for front panel applications.
Both are available with rocker handle styles in a choice of five
single colors: black, red, grey, orange or white.
2.206
[56.03]
6 – 32 THD. (TYP.)
M3 ISO THD.
OPTIONAL
OFF
ON
1.972
[50.09]
1.660
[42.16]
.750
[19.05]
.735
[18.67]
(HANDLE WIDTH)
±.005
[±.13]
OFF
ON
1.515
[38.48]
MAX.
OFF
ON
2.265
[57.53]
MAX.
OFF
ON
3.015
[76.58]
MAX.
ON
OFF
1.687
[42.85]
2.000
[50.80]
2.470
[62.74]
MAX.
1.220
[30.99]
.490
[12.45]
MAX.
IAGX/IUGX/IEGX/CEGX
Single Pole Two Pole Three Pole Four Pole
.750
[19.05]
1.510
[38.35]
Four Pole*
1.687
[42.85]
2.000
[50.80]
2.470 MAX.
[62.74]
1.220
[30.99]
.430
[10.92]
.125
[3.18]
1.530
[38.86]
.420 REF.
[10.67]
1.239
[31.47]
OPTIONAL
HANDLE GUARDS
(SEE DETAIL “A”)
ON
OFF
2.165
[54.98]1.660
[42.16]
.750
[19.05]6 – 32 THD. (TYP.)
M3 ISO THD.
OPTIONAL
ON
OFF
1.515
[38.48]
ON
OFF
2.265 Max.
[57.53]
IAGZX/IUGZX/IEGZX/CEGZX/LEGZX
Single Pole* Two Pole* Three Pole
1.260
[32.00]
2X .156
[3.96]
1.660
[42.16]
.750
[19.05]
.200
[5.08]
Panel Mounting Detail: Tolerance for
Mtg. ±.005 [.13] unless noted.
Detail “A”
Panel Mounting Detail: Tolerance for
mounting ±.005 [.13] unless noted.
*See Single Pole Mounting Detail for
hole sizes and locations.
(Optional: Handle may be
located in Pole 2 instead
of Pole 1)
Single, Two & Three Pole
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
1.260
[32.00]
2X .156
[3.96]
1.660
[42.16]
.750
[19.05]
.200
[5.08]
Mounting Detail
Single, Two & Three Pole
* LEG type units are only available in one or two poles.
The IAGZX/IUGZX/IEGZX/CEGZX/LEGZX style adds our “EZ”
options of contrasting dual color rocker actuators, affording a
clear visual indication of the handle position and integrated
handle guards, to help prevent accidental turn-on and turn-off of
the unit. Available with a black rocker and white, red or green
indicator color for either ON or OFF indication.
IAG Series - Handles http://airpax.sensata.com
103
ROCKER CIRCUIT PROTECTORS
(IAGX/IAGZX/IUGX/IUGZX/IEGX/IEGZX/CEGX/CEGZX/LEGZX)
The innovative new design of our IEG BX style circuit breaker
features a flat front rocker that not only satisfies your aesthetic
needs, it guards against accidental actuation while providing the
highest degree of circuit protection and quality. Only Sensata
Technologies offers this new standard in user interface,
providing additional peace of mind that guards alone can’t
supply.
.200
[5.08]
1.260
[32.00]
1.660
[42.16]
.750
[19.05]
2X ø .156
[3.96]
Panel Mounting Detail
1.687
[42.85]
2.378 MAX
[60.40]
.387 REF.
[9.84]
1.220
[30.99]
2.000
[50.80]
.125
[3.18]
1.239
[31.47]
1.530
[38.86]
.314
[7.98]
MOUNTING DETAIL TOLERANCE:
±.005 [.13] UNLESS NOTED
I
O
OFF
ON
OPTIONAL
GUARD
(SEE DETAIL “A”)
.750
[19.05]
1.660
[42.16]
2.217
[56.31]
SINGLE POLE
6-32 THD. MOUNTING
M3 ISO THD. OPTIONAL
IAGBX/IUGBX/IEGBX/CEGBX/LEGBX
Available on a variety of versions with a full range of agency
approvals, the new IEG BX style circuit breakers meet or exceed
all current performance specifications, including interrupting
capacities up to 50,000 amperes. Various guard options offer
additional and increasing levels of actuation protection
performance. The two shot mold on the flat rocker surface
provides a clean, crisp legend that can withstand demanding
use.
ON
ON
I
ON
I
OFF
O
I
ON
OFF
O
DETAIL "A"
I
O
OFF
ON
ON
I
I
Actuation
access handle
(see note)
OFF
O
Note: Access is limited to a device smaller than the Underwriters Laborator “articulated probe
Dened in UL-489 FIG. 11.1.7.2.1.
PUSH
TO
RESET
Handle position
"OFF" with guard
(6th decision, G)
Handle position
"OFF" guard with
no actuate “OFF”
feature
(6th decision, X)
Handle position
"ON" guard with
no actuate “OFF”
feature
(6th decision, X)
Handle position
"OFF" without
guard
Handle position
"ON" without
guard
PUSH
TO
RESET
Handle
position "ON"
with guard
(6th decision, G)
IAG Series - Handles 104
IAG Series
ROCKER CIRCUIT PROTECTORS
(IAGBX/IUGBX/IEGBX/CEGBX/LEGBX)
SEALED TOGGLE CIRCUIT PROTECTORS
(IAGN/IUGN)
The IAGN/IUGN family is a sealed toggle version of the IAG/IUG
family. The silicone rubber seal around the handle assures
panel seal integrity and makes this style a natural for harsh
environments.
This sealed toggle family is available in one to three poles with
ratings of .050 to 50 amperes.
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
13º
±3º
ON
OFF 13º
±3º
LOCKWASHER
1/2 – 32 HEX NUT
RUBBER “O” RING
2.256
[57.30]
MAX.
.130
[3.30]
6 – 32 MTG. SCREW
FOR HIGH SHOCK
MTG.
.625
[15.88]
.750
[19.05]
2.000
[50.80]
1.220
[30.99]
KEYWAY
.060 [1.52] – .065 [1.65] WIDE
.030 [.76] – .035 [.89] DEEP
.750
[19.05]
.656
[16.66]
1.515
[38.48]
MAX.
2.265
[57.53]
MAX.
.656
[16.66]
.515
[13.08]
.156
[3.96]
.750
[19.05]
.750
[19.05].750
[19.05]
Single Pole Two Pole Three Pole
Mounting Detail
Single Pole Two Pole* Three Pole*
Optional Handle
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13] unless noted.
*See Single Pole Mounting Detail for hole sizes and locations.
(Optional: Handle may be
located in Pole 2 instead
of Pole 1)
IAG Series - Handles http://airpax.sensata.com
105
2.598
[65.99]
OFF
ON
OFF
ON
1.488
[37.80]
2.232
[56.69]
2.976
[75.59]
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
.744
[18.90]
MAX.
ON
OFF
[52.70]
2.075
[42.85]
1.687
[6.09]
.240
[17.53]
.690
[30.99]
1.220
[50.80]
2.000
32º
32º
.127
[3.23]
DIM. “A”
(SEE TABLE)
IEGHS/CEGHS/LEGHS Circuit Protectors (Note B)
(Multi-Pole-IEGH Handles Per Pole)
(Omit H for Single Pole)
Panel Cutout Detail
Panel Thickness: (See Table)
Note:
A: Flush face plate is optional. See decision tables, sixth decision.
B: Tolerance ± .031 [.79] Angles: ±5° unless noted. Dimensions in
brackets [ ] are millimeters.
SNAP-IN CIRCUIT PROTECTORS
(IEGS/IEGHS/CEGS/CEGHS/LEGS/LEGHS)
The Snap-In version of the IEG brings mounting simplification
and international spacing together in a package that is
aesthetically enhanced. The IEGS securely snaps into a
rectangular cut-out, eliminating the need for panel mounting
hardware and the associated costs. The face plate of the IEGS
is a clean, black matte and it satisfies the increasing demand
for front panel components that are designed with ergonomic
considerations.
The IEGS is offered in either flush or beveled versions, in 1, 2, 3
or 4 pole packages, and with a handle per pole or per unit.
The IEGS is UL Recognized, CSA Certified and VDE approved.
DIM. “B”
(SEE TABLE)
DIM. “C”
(SEE TABLE)
DIMENSIONS “A”, “B”, “C”
Number of Poles Dimension “A”, inches [ mm ] Dimension “B”, inches [ mm ] Dimension “C”, inches [ mm ]
1 pole .750 [19.05] max .755 [19.18] min
2.180 ± .005
[55.37 ± .13]
2.186 ± .011
[55.52 ± .28]
2 pole 1.515 [38.48] max 1.520 [38.61] min
3 pole 2.265 [57.53] max 2.270 [57.66] min
4 pole 3.015 [76.58] max 3.020 [76.71] min
Panel Thickness .040 to .059
[1.02 to 1.50]
.060 to .100
[1.52 to 2.54]
IAG Series - Handles 106
IAG Series
Note: A: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
B: Bevelled face plate is standard.
.780
[19.82]
1.560
[39.62]
.734
[18.64]
2.598
[65.99]
OFF
ON
.960
[24.38]
OFF
ON
1.700
[43.18]
2.450
[62.23]
3.190
[81.03]
OFF
ON
OFF
ON
OFF
ON
MAX.
ON
OFF
[52.70]
2.075
[42.85]
1.687
[6.09]
.240
[17.53]
.690
[30.99]
1.220
[50.80]
2.000
32º
32º
.130
[3.30]
DIM. “A”
(SEE TABLE)
IEGS/CEGS/LEGS Circuit Protectors (Note B)
(Add H for multiple handles per unit, IEGHS)
Panel Cutout Detail
Panel Thickness: (See Table)
DIM. “B”
(SEE TABLE)
DIM. “C”
(SEE TABLE)
Optional Handle Guard
DIMENSIONS “A”, “B”, “C”
Number of Poles Dimension “A”, inches [ mm ] Dimension “B”, inches [ mm ] Dimension “C”, inches [ mm ]
1 pole .750 [19.05] max .780 ± .015 [19.81 ± .381]
2.180 ± .005
[55.37 ± .13]
2.186 ± .011
[55.52 ± .28]
2 pole 1.515 [38.48] max 1.540 ± .015 [39.12 ± .381]
3 pole 2.265 [57.53] max 2.290 ± .015 [58.17 ± .381]
4 pole 3.015 [76.58] max 3.040 ± .015 [77.22 ± .381]
Panel Thickness .040 to .059
[1.02 to 1.50]
.060 to .100
[1.52 to 2.54]
IAG Series - Handles http://airpax.sensata.com
107
1.530
[38.86]
.230
[5.84]
1.530
[38.86]
.230
[5.84]
Optional flat
screw terminal
Series Switch
Only
1.530
[38.86]
1.380
[35.05]
.230
[5.84]
2.52 MAX.
[64.00]
(See Note A)
Shunt
.469
[11.91]
.764
[19.04]
1.059
[26.90]
Standard Auxiliary Switch VDE Auxiliary Switch
C
NO
NC
BREAKER IN
OFF POSITION
2.438 MAX.
[61.93]
(See Note A)
.260
[6.60]
.110
[2.79]
–IREC4
–IREG4
2.454 MAX.
[62.33]
(See Note A
)
.250
[6.35]
.187
[4.75]
–IREC5
Series with Auxiliary Switch
CONFIGURATIONS
Series Trip
The most popular configuration for magnetic protectors is
the series trip where the sensing coil and contacts are in
series with the load being protected. The handle position
conveniently indicates circuit status. In addition to
providing conventional overcurrent protection, it’s
simultaneously used as an on-off switch.
Shunt Trip
The shunt trip is designed for controlling two separate loads
with one assembly. The control is established by providing
overload protection for the critical load. When the current
through this load becomes excessive and reaches the trip
point, the protector will open and remove power from both
loads simultaneously. The total current rating of both loads
must not exceed the maximum contact rating.
Auxiliary Switch (Applies to Series Trip Only)
This is furnished as an integral part of a series pole in
single or multi-pole assemblies. Isolated electrically from
the protector’s circuit, the switch works in unison with the
power contacts and provides indication at a remote
location of the protector’s on-off status.
Auxiliary switch contacts actuate simultaneously with the
main protector contacts, and will open regardless of
whether the protector contacts are opened manually or
electrically. For auxiliary switch ratings below 6Vac or
5Vdc, an auxiliary switch with gold contacts designated
as REG is available. Gold contacts are not recommended
for load current above 100 milliamps.
Note:
A: Terminal protrusion dimensions are referenced from back mounting panel.
B: Main terminals are male push-on type .250 [6.35] wide x 0.31 [.79] thick x .375 [9.53]
long or 8-32 x .187 [4.75] screw type. Metric screw terminals are M4 x 5mm (<=30A):
M5 x 5mm screw type (>30A). On VDE approved builds with screw terminals, external
tooth lockwashers are supplied. On VDE approved builds with push-on terminals a
soldered connection is required above 25 amperes.
.441
[11.20]
.848
[21.53]
1.083
[27.51]
MAIN TERMINAL TYPES
Amp
Rating Push-On 8-32
Screw
M4
Screw
10-32
Screw
M5
Screw
.05 to 30 X X X
30.1 to 50 X X
IAG Series - Congurations 108
IAG Series
Note: Tolerance ± .015 [.38] unless noted.
Dimensions in brackets [ ] are millimeters.
1.530
[38.86]
1.380
[35.05]
.230
[5.84]
2.52 MAX.
[64.00]
(See Note A)
.620
[15.75]
2.000
[50.80]
.571
[14.50]
Relay Trip
This permits the overload sensing coil to be placed in a
circuit which is electrically isolated from the trip
contacts. The coil may be actuated by sensors
monitoring pressure, flow, temperature, speed, etc.
Other typical applications include crowbar, interlock
and emergency /rapid shutdown circuitry. Trip may be
accomplished by voltage or current, which must be
removed after trip.
Dual Coil
By combining two electrically independent coils on a
common magnetic circuit, it is possible to provide
contact opening when either an over-current or trip
voltage is applied to the respective coils. One coil will
be a current trip coil with standard specifications. The
second, or dual coil, can be used to provide a control
function permitting contact opening from a remote
interlock or other transducer functions. Standard coils
are 6, 12, 24, 48, 120 and 240 volts. Tripping is
instantaneous and must be removed (usually self-
interrupting) after trip.
Voltage Trip
Sometimes called “dump circuits” or “panic trip
circuits,” these units make it possible to open main
power contacts with lower power inputs from one or
more sources. This configuration is becoming
increasingly more important for sensitive circuitry and
denser packaging in automation systems. Available in
series, shunt or relay configurations.
Relay
1.530
[38.86]
1.380
[35.05]
.230
[5.84]2.52 MAX.
[64.00]
(See Note A)
Dual Coil
1.530
[38.86]
.620
[15.75]
1.380
[35.05]
.230
[5.84]2.52 MAX.
[64.00]
(See Note A)
Dual Coil
Optional Barriers (IEG Only)
IAG Series - Congurations http://airpax.sensata.com
109
OPERATING CHARACTERISTICS
Inrush Pulse Tolerance
The following table provides a comparison of inrush
pulse tolerance with and without the inertial delay
feature for each of the 50/60Hz delays. Pulse
tolerance is defined as a single pulse of half sine
wave peak current amplitude of 8 milliseconds
duration that will not trip the circuit breaker. The
table at left provides a guide to determine if the
inertia delay feature is required. Consult factory for
further assistance.
TYPICAL RESISTANCE / IMPEDANCE
Current Ratings
(Amps)
Impedance
DC
(ohms)
AC, 50/60Hz
(ohms)
AC, 400Hz
(ohms)
51, 52, 53, 59 61, 62, 63, 69 41, 42, 43, 49
0.200 45.8 28.5 71.94
1.00 1.38 1.10 2.85
2.00 0.371 0.29 0.76
5.00 0.055 0.051 0.12
10.0 0.017 0.016 0.032
20.0 0.006 0.006 0.010
30.0 0.003 0.004 0.006
50.0 0.0019 0.0018
DCR and Impedance based on 100% rated current applied and stabilized for
a minimum of one hour. Tolerance .05-2.5 amperes ± 20%: 2.6 -20 amperes
± 25%, 21-50 amperes ± 50%. Consult factory for special values and for coil
impedance of delays not shown.
PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS
Delay 100% 125% 150% 200% 400% 600% 800% 1000%
41 No Trip May Trip .500 to 8.0 .150 to 1.9 .020 to .40 .006 to .25 .004 to .1 .004 to .05
42 No Trip May Trip 5 to 70 2.2 to 25 .40 to 5.0 .012 to 2 .006 to .2 .006 to .15
43 No Trip May Trip 35 to 350 12 to 120 1.5 to 20 .012 to 2.2 .01 to .22 .01 to .1
49 No Trip May Trip .100 Max .050 Max .020 Max .020 Max .020 Max .020 Max
51* No Trip .500 to 6.5 .300 to 3.0 .100 to 1.2 .031 to .500 .011 to .25 .004 to .1 .004 to .08
52* No Trip 2 to 60 1.8 to 30 1 to 10 .15 to 2.0 .015 to 1 .008 to .5 .006 to .1
53* No Trip 80 to 700 40 to 400 15 to 150 2 to 20 .015 to 9 .015 to .55 .012 to .2
59* No Trip .120 Max .100 Max .050 Max .022 Max .017 Max .017 Max .017 Max
61* No Trip .700 to 12 .35 to 7.0 .130 to 3.0 .030 to 1 .015 to .3 .01 to .15 .008 to .1
62* No Trip 10 to 120 6 to 60 2 to 20 .2 to 3.0 .015 to 2 .015 to .8 .01 to .25
63* No Trip 50 to 700 30 to 400 10 to 150 1.5 to 20 .015 to 10 .013 to .85 .013 to .5
64 No Trip .7 to 12 .35 to 7 .13 to 3 .030 to 1 .017 to .3 .01 to .16 .008 to .1
65 No Trip 10 to 120 6 to 60 2 to 20 .2 to 3 .02 to 2 .017 to .76 .01 to. 6
66 No Trip 50 to 700 30 to 400 10 to 150 1.5 to 20 .4 to 10 .014 to 5 .014 to 3
69* No Trip .120 Max .100 Max .050 Max .022 Max .017 Max .017 Max .017 Max
71** No Trip .440 to 10 .300 to 7 .100 to 3.0 .03 to 1 .012 to .3 .004 to .15 .004 to .1
72** No Trip 1.8 to 100 1.7 to 60 1 to 20 .15 to 3 .015 to 2 .008 to .79 .006 to .28
73** No Trip 50 to 600 30 to 400 10 to 150 1.8 to 20 .015 to 10 .015 to .88 .011 to .50
79** No Trip .120 Max .100 Max .050 Max .023 Max .016 Max .015 Max .015 Max
*CEG type units are available only with 51, 52, ,53 and 59 delays LEG type units are available only with 61, 62, 63 and 69 delays
**135% minimum trip point for delays 71, 72, 73 and 79
INRUSH PULSE TOLERANCE
Delay Pulse Tolerance
61, 62, 63, 71, 72, 73 10 times rated current (approx)
61F, 62F, 63F, 71F, 72F, 73F 12 times rated current (approx)
64, 65, 66 25 times rated current (approx)
IAG Series - Operating Characteristics 110
IAG Series
DELAY CURVES (IAG/IUG/IEG/CEG/LEG)
400Hz, DC, 50/60Hz Delay Curves (typ)
A choice of delays is offered for DC, 50/60Hz and 400Hz
applications. Delays 49, 59 and 69 provide fast acting,
instantaneous trip and are often used to protect sensitive
electronic equipment (not recommended where known inrush
exists). Delays 41, 51 and 61 have a short delay for general
purpose applications. Delays 42, 52 and 62 are long enough to
start certain types of motors and most transformer and
capacitor loads. Delays 43, 53 and 63 are long delays for
special motor applications at 400Hz, DC and 60Hz. CEG type
units are only available in 51, 52, 53 and 59 delay curves. LEG
type units are only available in 61, 62, 63 and 69 delay curves.
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 61
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 62
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 69
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 63
MAY TRIP
MAY TRIP
MAY TRIP
MAY TRIP
IAG Series - Delay Curves http://airpax.sensata.com
111
DELAY CURVES (IAG/IUG/IEG/CEG)
DC Delay Curves (typ)
IAG Series - Delay Curves 112
IAG Series
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1000
100
01
10000
001
DELAY 79
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
1000
100
01
10000
001
PERCENT OF RATED CURRENT
1000
900
DELAY 71
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
1000
100
01
10000
001
PERCENT OF RATED CURRENT
1000
900
MAY TRIP
DELAY 72
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
1
1000
100
01
10000
001
PERCENT OF RATED CURRENT
1000
900
MAY TRIP
DELAY 73
1000
900
1
1
MAY TRIP
MAY TRIP
DELAY CURVES (IAG/IUG/IEG)
Multi-frequency - DC, 50/60Hz Delay Curves (typ)
IAG Series - Delay Curves http://airpax.sensata.com
113
DELAY CURVES (IAG/IUG/IEG)
400Hz Delay Curves (typ)
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 41
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 42
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 49
10000
1000
100
10
1
.1
.01
.001 0 100 150 200 300 400 500 600 700 800 900 1000
PERCENT OF RATED CURRENT
125
TIME IN SECONDS
DELAY 43
MAY TRIP
MAY TRIP
MAY TRIP
MAY TRIP
IAG Series - Delay Curves 114
IAG Series
SPECIFICATIONS
Trip Free
Will trip open on overload, even when forcibly held in the ON position. This
prevents the operator from damaging the circuit by holding on the protector.
Trip Indication
The operating handle moves positively to the OFF position on overload.
Ambient Operation
IAG/IUG/IEG/CEG/LEG protectors operate in temperatures between –40° C to
+85° C.
Insulation Resistance
Not less than 100 megohms at 500 volts DC.
Dielectric Strength
IAG/IUG/IEG/CEG/LEG protectors withstand 3750Vac, 60Hz for 60 seconds
between all electrically isolated terminals, except auxiliary switch terminals
shall withstand 600Vac, 60Hz for REG and REC types. Four terminal dual coil and
relay construction (not offered in the IEG) will withstand 1500Vac.
Endurance
Operating as a switch, the operating life exceeds 10,000 operations at a rate of
6 per minute when tested as follows: 6000 OPS @ rated current plus 4000 OPS
@ at no load.
Electrical Characteristics
.050-50 amperes; 80Vdc Max., 240Vac Max., 50/60Hz and .050-30 amperes:
250Vac Max., 400Hz. Units above 30 amps are not suitable for across-the-line
motor starting.
Auxiliary Switch
When supplied shall be SPDT configuration. Non VDE approved switches have
a maximum UL rating of 10.0 amperes, 250 volts, 60Hz; 3.0 amperes, 50 volts DC,
1 amperes, 80 volts DC (REC) type or 0.1 amperes, 125 volts, 60Hz. (REG type).
VDE approved switches have a maximum UL rating of 10.0 amperes, 250 volts,
60Hz, 1 amperes, 80 volts DC (REG type); or 0.1 amperes, 125 volts, 60Hz (REG
type); or 0.1 amperes, 125 volts, 60Hz (REG type).
Moisture Resistance
Meets all the requirements of MIL-PRF-55629 when tested in accordance with
Method 106 of MIL-STD-202.
Salt Spray (Corrosion)
Meets the requirements of MIL-PRF-55629 when tested in accordance with
Method 101 of MIL-STD-202.
Shock
Circuit protectors shall not trip when tested per MIL-STD-202, Method 213, Test
Condition I with 100% rated current applied to delayed units, except 90% current in
plane 4 (i.e., handle down). Instantaneous units shall have 80% rated current
applied in all planes.
Construction
Series, shunt, relay and series with auxiliary switch available in various delays
and combinations.
Vibration
Circuit protector shall not trip when vibrated per MIL-STD-202, Method 204, Test
Condition A with 100% rated current applied to delayed units and 80% rated
current to instantaneous units.
VDE Approval
IEG is VDE approved under VDE 0642 (EN60934). The IEG has 8mm creepage and
clearance between the main circuit and the following areas:
A. Operator accessible area around the handle.
B. The mounting inserts or brackets.
C. The auxiliary switch circuit.
D. Between poles.
Care must be taken to maintain spacings at the terminals when wired. The VDE
approval for standard terminals is not for use with bare wire. A crimp type lug is
required. In addition, all VDE approved units will be in compliance with specific
CE Directives. These units will be marked as CE Compliant.
UL1500 (Marine Ignition Protected)
IDG/IDGH is approved for Marine Ignition Protection
UL489A Listed
The CEG is dimensionally the same as the popular IEG, but provides UL listing to
UL489A. Available in one to three poles, in series, series with auxiliary switch,
shunt, dual coil and voltage trip configurations. As a circuit breaker, the CEG
provides communication equipment manufacturers with a UL listed circuit
breaker in a very compact package that meets the stringent environmental
requirements of today’s marketplace. This makes the CEG ideal for switching,
transmission and wireless applications.
UL489 Listed
The LEG is dimensionally the same as the popular IEG, but provides UL listing to
UL489. Available with one or two poles, in series, series with auxiliary switch,
shunt and three-terminal dual coil configurations. As a circuit breaker, the LEG
provides equipment manufacturers with a UL listed magnetic hydaulic circuit
breaker in the most compact package available on the market.
APPROXIMATE WEIGHT PER POLE (1 TO 6 POLES AVAILABLE)
Ounces Grams
2.2 62.4
RECOMMENDED TORQUE SPECIFICATIONS
Component Torque (in-lbs)
6-32 Mounting Inserts 6 to 8
M3 Mounting Screws 4 to 5
8-32 Screw Terminals 10 to 12
M4 Terminal Screws 10 to 12
10-32 Screw Terminals 14 to 15
M5 Screw Terminals 14 to 15
1/2 - 32 Mounting Bushing 30 to 35
Where applicable, mechanical support must be provide to the terminals when
applying torque
IAG Series - Specications http://airpax.sensata.com
115