Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
ORDERING INFORMATION
Transistor drive
2c/4c 5A slim power relays NC RELAYS
NC4 Flat type
(PC board type)
NC2 Flat type
(PC board type)
NC4 Slim type
(Plug-in type)
NC2 Slim type
(PC board type)
RoHS compliant
FEATURES
1. Compact, slim design
Use of high-performance flat
electromagnetic design achieves
10.9 mm .429 inch profile, flat type thin
package. Slim type, with width of
11.2 mm .441 inch, enables high-density
mounting on PC boards.
2. High reliability
Provides stable contact pressure needed
for card lift-off contact driver method. The
use of Ac clad twin contacts provides
stable contact resistance and ensures
high contact reliability.
3. Compatible with all major safety
standards
UL and CSA certified, and complies with
Japanese Electrical Appliance and
Material Control Law.
4. Socket and terminal are available.
TYPICAL APPLICATIONS
1. Information processing and telecom
equipment such as computers and
terminal devices.
2. Gas hot air heating equipment and
air conditioners.
3. Timer, temperature controller and
other equipment that requires form
factor reduction.
4. Transmission and measuring
devices such as facsimile machines
and electronic counting devices.
5. Control panels for industrial
equipment such as machine tools,
factory automation devices, and NC
machines.
2: 2 Form C
4: 4 Form C
D: Twin (bifurcated) contact
NC D
Nil:
EB:
Standard type
Amber sealed type
Nil:
J:
Slim type
Flat type
Nil: Single side stable
Nil:
P:
Plug-in type
PC board type
Nominal coil voltage
DC
AC
3, 5, 6, 12, 24, 48, 100V
12, 24, 48, 100V
Notes: 1. Certified by UL and CSA
2. Amber sealed types are sealed and filled with inert gas (nitrogen gas).
Sealed construction with terminals, case and base sealed shut with sealing resin.
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
TYPES
1. Standard type
1) Flat type
Standard packing: Carton: 20 pcs.; Case: 200 pcs.
2) Slim type
Standard packing: Carton: 20 pcs.; Case: 200 pcs.
Contact arrangement Nominal coil voltage PC board type
Part No.
2 Form C
12V AC NC2D-JP-AC12V
24V AC NC2D-JP-AC24V
48V AC NC2D-JP-AC48V
100V AC NC2D-JP-AC100V
3V DC NC2D-JP-DC3V
5V DC NC2D-JP-DC5V
6V DC NC2D-JP-DC6V
12V DC NC2D-JP-DC12V
24V DC NC2D-JP-DC24V
48V DC NC2D-JP-DC48V
100V DC NC2D-JP-DC100V
4 Form C
12V AC NC4D-JP-AC12V
24V AC NC4D-JP-AC24V
48V AC NC4D-JP-AC48V
100V AC NC4D-JP-AC100V
3V DC NC4D-JP-DC3V
5V DC NC4D-JP-DC5V
6V DC NC4D-JP-DC6V
12V DC NC4D-JP-DC12V
24V DC NC4D-JP-DC24V
48V DC NC4D-JP-DC48V
100V DC NC4D-JP-DC100V
Contact arrangement Nominal coil voltage Plug-in type PC board type
Part No. Part No.
2 Form C
12V AC NC2D-AC12V NC2D-P-AC12V
24V AC NC2D-AC24V NC2D-P-AC24V
48V AC NC2D-AC48V NC2D-P-AC48V
100V AC NC2D-AC100V NC2D-P-AC100V
3V DC NC2D-DC3V NC2D-P-DC3V
5V DC NC2D-DC5V NC2D-P-DC5V
6V DC NC2D-DC6V NC2D-P-DC6V
12V DC NC2D-DC12V NC2D-P-DC12V
24V DC NC2D-DC24V NC2D-P-DC24V
48V DC NC2D-DC48V NC2D-P-DC48V
100V DC NC2D-DC100V NC2D-P-DC100V
4 Form C
12V AC NC4D-AC12V NC4D-P-AC12V
24V AC NC4D-AC24V NC4D-P-AC24V
48V AC NC4D-AC48V NC4D-P-AC48V
100V AC NC4D-AC100V NC4D-P-AC100V
3V DC NC4D-DC3V NC4D-P-DC3V
5V DC NC4D-DC5V NC4D-P-DC5V
6V DC NC4D-DC6V NC4D-P-DC6V
12V DC NC4D-DC12V NC4D-P-DC12V
24V DC NC4D-DC24V NC4D-P-DC24V
48V DC NC4D-DC48V NC4D-P-DC48V
100V DC NC4D-DC100V NC4D-P-DC100V
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
2. Amber type
1) Flat type
Standard packing: Carton: 20 pcs.; Case: 200 pcs.
2) Slim type
Standard packing: Carton: 20 pcs.; Case: 200 pcs.
* For sockets, see page 76.
RATING
1. Coil data
1) Single side stable type (AC)
Contact arrangement Nominal coil voltage PC board type
Part No.
2 Form C
3V DC NC2EBD-JP-DC3V
5V DC NC2EBD-JP-DC5V
6V DC NC2EBD-JP-DC6V
12V DC NC2EBD-JP-DC12V
24V DC NC2EBD-JP-DC24V
48V DC NC2EBD-JP-DC48V
100V DC NC2EBD-JP-DC100V
4 Form C
3V DC NC4EBD-JP-DC3V
5V DC NC4EBD-JP-DC5V
6V DC NC4EBD-JP-DC6V
12V DC NC4EBD-JP-DC12V
24V DC NC4EBD-JP-DC24V
48V DC NC4EBD-JP-DC48V
100V DC NC4EBD-JP-DC100V
Contact arrangement Nominal coil voltage Plug-in type PC board type
Part No. Part No.
2 Form C
3V DC NC2EBD-DC3V NC2EBD-P-DC3V
5V DC NC2EBD-DC5V NC2EBD-P-DC5V
6V DC NC2EBD-DC6V NC2EBD-P-DC6V
12V DC NC2EBD-DC12V NC2EBD-P-DC12V
24V DC NC2EBD-DC24V NC2EBD-P-DC24V
48V DC NC2EBD-DC48V NC2EBD-P-DC48V
100V DC NC2EBD-DC100V NC2EBD-P-DC100V
4 Form C
3V DC NC4EBD-DC3V NC4EBD-P-DC3V
5V DC NC4EBD-DC5V NC4EBD-P-DC5V
6V DC NC4EBD-DC6V NC4EBD-P-DC6V
12V DC NC4EBD-DC12V NC4EBD-P-DC12V
24V DC NC4EBD-DC24V NC4EBD-P-DC24V
48V DC NC4EBD-DC48V NC4EBD-P-DC48V
100V DC NC4EBD-DC100V NC4EBD-P-DC100V
No. of
poles
Nominal
coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal operating
current [±10%]
(at 20°C 68°F)
Coil inductance Nominal operating
power
Max. applied
voltage
(at 50°C 122°F)
N.C. condition N.O. condition
2 Form C
12V AC
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
41.5mA — — 0.50VA
110%V of
nominal voltage
24V AC 22.5mA — — 0.54VA
48V AC 14.0mA — — 0.67VA
100V AC 10.5mA — — 1.05VA
4 Form C
12V AC
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
92mA — — 1.10VA
110%V of
nominal voltage
24V AC 45mA — — 1.08VA
48V AC 22.5mA — — 1.08VA
100V AC 13.0mA — — 1.30VA
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
2) Single side stable (DC)
* At 20°C 68°F (Amber type)
2. Specifications
Notes: *1 This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load.
*2. 100V DC: 740mW
*3. For the AC type, the operate and release time differs depending on the phase of the input and cutoff times.
*4. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage
conditions in NOTES.
*5. 100V AC: –40°C to +40°C –40°F to +104°F
No. of
poles
Nominal
coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal operating
current [±10%]
(at 20°C 68°F)
Coil resistance
[±10%]
(at 20°C 68°F)
Nominal operating
power
Coil inductance Max. applied
voltage
(at 50°C 122°F)*
N.C.
condition
N.O.
condition
2 Form C
3V DC
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
120mA 25Ω360mW 24.2mH 30.0mH
135%V of
nominal voltage
5V DC 72mA 69.4Ω360mW 69.5mH 86.0mH
6V DC 60mA 100Ω360mW 99.4mH 123mH
12V DC 30mA 400Ω360mW 388mH 480mH
24V DC 15mA 1,600Ω360mW 1,590mH 1,970mH
48V DC 7.5mA 6,400Ω360mW 6,270mH 7,680mH
100V DC 7.4mA 13,500Ω740mW 9,470mH 11,700mH 110%V of
nominal voltage
4 Form C
3V DC
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
240mA 12.5Ω720mW 12.8mH 15.8mH
110%V of
nominal voltage
5V DC 144mA 34.7Ω720mW 34.3mH 42.4mH
6V DC 120mA 50Ω720mW 50.7mH 62.7mH
12V DC 60mA 200Ω720mW 203mH 252mH
24V DC 30mA 800Ω720mW 812mH 1,000mH
48V DC 15mA 3,200Ω720mW 2,820mH 3,480mH
100V DC 7.4mA 13,500Ω740mW 14,100mH 17,400mH
Characteristics Item
Specifications
DC AC DC AC
Single side stable Single side stable Single side stable Single side stable
Contact
Arrangement 2 Form C 4 Form C
Contact resistance (Initial) Max. 50 mΩ (By voltage drop 6 V DC 1A) Max. 50 mΩ (By voltage drop 6 V DC 1A)
Contact material Au-clad AgNi type Au-clad AgNi type
Rating
Nominal switching capacity
(resistive load)
Standard: 5A 250V AC, 5A 30V DC
Amber: 3A 250V AC, 5A 30V DC
Standard: 4A 250V AC, 5A 30V DC
Amber: 2A 250V AC, 5A 30V DC
Max. switching power
(resistive load)
Standard: 1,250VA, 150W
Amber: 750VA, 150W
Standard: 1,000VA, 150W
Amber: 500VA, 150W
Max. switching voltage 250 V AC
Max. switching current Standard: 5A
Amber: 3A (AC), 5A (DC)
Standard: 4A
Amber: 2A (AC), 5A (DC)
Nominal operating power 360mW (740mW: 100V DC) 0.50VA to 1.05VA 720mW*21.08VA to 1.30VA
Min. switching capacity
(Reference value)*1100µA 1V DC 100µA 1VDC
Electrical
characteristics
Insulation resistance (Initial) Min. 100MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section.
Breakdown
voltage
(Initial)
Between open
contacts 1,000 Vrms for 1min. (Detection current: 10mA.)
Between
contact sets 1,000 Vrms for 1min. (Detection current: 10mA.)
Between
contact and coil 2,000 Vrms for 1min. (Detection current: 10mA.)
Temperature rise (coil) Max. 65°C [Max. 85°C (100V AC)] (By resistive method, nominal coil voltage)
Operate time (at 20°C 68°F) Max. 20ms Max. 30ms*3Max. 20ms Max. 30ms*3
Release time (at 20°C 68°F) Max. 10ms Max. 40ms*3Max. 10ms Max. 40ms*3
Mechanical
characteristics
Shock
resistance
Functional Min. 98 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Destructive Min. 980 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Vibration
resistance
Functional 10 to 55 Hz at double amplitude of 1 mm (Detection time: 10µs.)
Destructive 10 to 55 Hz at double amplitude of 2 mm
Expected life
Mechanical Min. 5×107Min. 107Min. 5×107Min. 107
Electrical (resistive load) Standard: Min. 105 (5A 250V AC), Min. 5×105 (5A 30V DC)
Amber: Min. 105 (3A 250V AC), Min. 5×105 (5A 30V DC)
Standard: Min. 105 (4A 250V AC), Min. 5×105 (5A 30V DC)
Amber: Min. 105 (2A 250V AC), Min. 5×105 (5A 30V DC)
Conditions
Conditions for operation,
transport and storage*4
(Not freezing and condensing
at low temperature)
–40°C to +70°C
–40°F to +158°F
(Max.48V DC),
–40°C to +55°C
–40°F to +131°F (100V DC)
–40°C to +60°C
–40°F to +140°F*5
–40°C to +55°C
–40°F to +131°F
–40°C to +40°C
–40°F to +104°F
Max. Operating speed 50 cps
Unit weight 16 g .56 oz 18 g .63 oz
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
REFERENCE DATA (Standard type)
1.-(1) Life curve
(AC/DC load 2 Form C, 4 Form C)
1.-(2) Life curve (AC/DC load 2 Form C) 1.-(3) Life curve (AC/DC load 4 Form C)
Contact carrying current, A
Expected life, ×104
0.1 1.0 10
100
1,000
10,000
220 V DC resistive
110 V DC resistive
30 V DC resistive
Contact carrying current, A
Expected life, ×104
100
10
0
1,000
5,000
12345
250 V AC resistive
250 V AC inductive (pf=0.4)
Contact carrying current, A
Expected life, ×104
100
10
0
1,000
5,000
125 V AC resistive
250 V AC resistive
125 V AC inductive (pf=0.4)
250 V AC inductive (pf=0.4)
12345
2. Temperature rise characteristics
(single side stable)
Measured portion: Inside the coil
3. Operate time (single side stable) 4. Release time (single side stable)
20
30
40
50
60
70
80
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8W
100 120 140 160 180 200 220%V
100 110 120 130 140 150%V
5 A (Contact carring current)
3 A (Contact carring current)
4C
2C
Temperature rise, °C
Operating
power
Coil voltage
2C : up to
48 V DC
2C : 100 V DC
4C : all types
)
)
(
(
5 A (Contact carring current)
3 A (Contact carring current)
Coil applied voltage,%V
Operate time, ms
4
2
10
6
8
12
16
14
18
20
80 100
90 110
Min.
Max.
4c
2c
Min.
Max.
Coil applied voltage,%V
Release time, ms
5
4
3
2
1
80 100
90 110
4c
2c
Max.
Min.
Max.
Min.
5.-(1) Rate of change of pick-up and drop-out
voltage
(2 Form C single side stable)
5.-(2) Rate of change of pick-up and drop-out
voltage
(4 Form C single side stable)
100
–40 –20 0 20 40 60 80
80
90
110
120
Ambient temperature, °C
Drop-out voltage
Pick-up voltage
Rated of change, %
100
–40 –20 0 20 40 60 80
80
90
110
120
Ambient temperature, °C
Drop-out voltage
Pick-up voltage
Rated of change, %
6.-(1) Ambient temperature vs Max. applied
voltage
Tested sample:
NC2D-P-DC24 V (2 Form C slim single side stable)
6.-(2) Ambient temperature vs Max. applied
voltage
Tested sample:
NC2D-P-DC110 V (2 Form C slim single side stable),
NC4D-P-DC24 V (4 Form C slim single side stable)
100
150
200
250
Ambient temperature, °C
40 50 60 70
Max. applied voltage, %V
0 A (Contact carring current)
3 A (Contact carring current)
5 A (Contact carring current)
30 40 50
100
150
200
250
Ambient temperature, °C
Max. applied voltage, %V
0 A (Contact carring current)
3 A (Contact carring current)
5 A (Contact carring current)
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
DIMENSIONS (mm inch)
<Standard type>
The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e/
Flat type
2 Form C External dimensions
0.8
.031
.200 .200 .200
5.08 5.08 5.08
25.4
1.000
25.4 27.94
1.000 1.100
10.9 3.5
.429 .138
.016
0.4
Schematic (Top view)
Single side stable
(Deenergized position)
PC board pattern (Bottom view)
Single side stable
14 13 12 11
2457
–+
.110 dia.
2.8 dia. 8-.047 dia. hole
8-1.2 dia. hole
2.54×11
.100×11
2.54
.100
11 12 13 14
754 2
2.54
.100
CAD Data
Flat type
4 Form C External dimensions
38.1
1.500
25.4 27.94
1.000 1.100
10.9 3.5
.429 .138
.016
0.4
0.8
.031
2.54 2.54
5.08 5.08
.100 .100
.200 .200
5.08
.200
5.08 5.08
.200 .200
.200
5.08 .200
5.08 .200
5.08 .200
5.08 .200
5.08 .200
5.08 .200
5.08
Schematic (Top view)
Single side stable
(Deenergized position)
PC board pattern (Bottom view)
Single side stable
141516 13 12 11 10 9
12 4 57 8
–+
87 54 21
910111213141516
14-.047 dia. hole
14-1.2 dia. hole
.110 dia.
2.8 dia.
2.54
.100
2.54
.100
2.54×11
.100×11
CAD Data
Slim type
Plug-in type
2 Form C
External dimensions
5.08 5.08 5.08
.200 .200 .200
2.54 2.54
.100 .100
0.8 2.5
.031 .098
25.4
1.000
.200 .200 .200
5.08 5.08 5.08
11 12 13 14
765432
27.8
1.094
6.1
.240 0.4
.016 0.4
.016
7.62
.300
11.2
.441
Schematic (Bottom view)
Single side stable
(Deenergized position)
11 12 13 14
7542
+–
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
Slim type
Plug-in type
4 Form C
External dimensions
38.1
1.500
5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200
5.08 5.085.08 5.08 5.08
.200 .200.200 .200 .200
10 11 12 13 14 15 169
87654321
2.542.54 .100.100
27.8
1.094
6.1
.240 0.4
7.62
.300
11.2
.441
0.4
.016 .016
Schematic (Bottom view)
Single side stable
(Deenergized position)
111091213141516
87 5 4 2 1
+–
CAD Data
Slim type
PC board type
2 Form C
External dimensions
(Dowel heigh: 0.4 .016)
4.1
.161
7.62
.300
11.2
.441
0.2 0.4
.008 .016
27.8
1.094
5.087.62 5.08
.200.300 .200
2.54
.100
25.4
1.000
5.08 5.08 5.08
.200 .200 .200
11 12 13 14
765 43 2
0.8
.031
Schematic (Bottom view)
Single side stable
(Deenergized position)
PC board pattern (Bottom view)
Single side stable
11 12 13 14
7542
+–
12 13 1411
7542
.110 dia.
2.8 dia. 8-.047 dia. hole
8-1.2 dia. hole
2.54×3
.100×3
2.54
.100
2.54
.100
CAD Data
Slim type
PC board type
4 Form C
External dimensions
(Dowel heigh: 0.4 .016)
4.1
.161
7.62
.300
11.2
.441
0.2 0.4
.008 .016
27.8
1.094
38.1
1.500
5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200 5.08
.200
5.08 5.085.08 5.08 5.08
.200 .200.200 .200 .200
87654321
2.542.54 .100.100
0.8
.031
Schematic (Bottom view)
Single side stable
(Deenergized position)
PC board pattern (Bottom view)
Single side stable
111091213141516
87 5 4 2 1
+–
.110 dia. 14-.047 dia. hole
2.8 dia. 14-1.2 dia. hole
2.54×3
.100×3
2.54
.100
2.54
.100
910111213141516
754 218
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
<Amber sealed type>
Flat type
2 Form C External dimensions
0.8
.031
0.4
.016
.200 .200 .200
5.08 5.08 5.08
1.000
25.4
1.000
25.4
.429
10.9 .138
3.5
1.100
27.94
.200
5.08
.100
2.54 .100
2.54
.200
5.08
Schematic (Top view) PC board pattern (Bottom view)
14 13 12 11
2457
-+
Single side stable:
Deenergized position
.110 dia.
2.8 dia. 10-.047 dia. hole
10-1.2 dia. hole
11 12 13 14
2.54×11
.100×11
2.54
.100
2.54 0.5
.100 .020
754 2
CAD Data
Flat type
4 Form C External dimensions
.200
5.08 .200
5.08 .200
5.08
0.4
.016
1.000
25.4
.429
10.9 .138
3.5
1.100
27.94
.200
5.08 .200
5.08 .200
5.08 .200
5.08
1.500
38.1
0.8
.031
.200
5.08 .200
5.08 .200
5.08
.200
5.08 .200
5.08
.100
2.54 .100
2.54
Schematic (Top view) PC board pattern (Bottom view)
141516 13 12 11 10 9
12 45 78
-+
Single side stable:
Deenergized position
87 54 21
910111213141516
16-.047 dia. hole
16-1.2 dia. hole
.110 dia.
2.8 dia.
2.54×11
.100×11
2.54
.100
2.54 0.5
.100 .020
CAD Data
Slim type
Plug-in type
2 Form C
External dimensions
0.8
.031
6.1
.240
27.8
1.094
2.5
.098 7.62
.300
11.2
.441
.200
5.08 .200
5.08 .200
5.08
.100
2.54 .100
2.54
1.000
25.4
.200
5.08
.200
5.08
.200
5.08
0.4
.016
Schematic (Bottom view)
11 12 13 14
7542
+-
Single side stable:
Deenergized position
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
Slim type
Plug-in type
4 Form C
External dimensions
1.500
38.1
2.5
5.08
.200 5.08
.200 5.08
.200
5.08
.200
5.08
.200
2.54
.100
2.54
.100
27.8
1.094
6.1
.240
7.62
11.2
.300
.441
0.4
.016
38.1
38.9
1.500
1.531
0.8
.098 .031
5.08
.200
5.08
.200
5.08
.200
5.08
.200 5.08
.200 5.08
.200 5.08
.200
Schematic (Bottom view)
14 15 16131211109
124578 -+
Single side stable:
Deenergized position
CAD Data
Slim type
PC board type
2 Form C
External dimensions
0.8
.031
4.1
.161
27.8
1.094
0.4
.016
0.2
.008
1.000
25.4
.200
5.08
.200
5.08
.200
5.08
.200
5.08 .200
5.08 .200
5.08
.100
2.54 .100
2.54
7.62
.300
11.2
.441
Schematic (Bottom view) PC board pattern (Bottom view)
11 12 13 14
7542
+-
Single side stable:
Deenergized position
12 13 1411
7542
.110 dia.
2.8 dia. 10-.047 dia. hole
10-1.2 dia. hole
2.54×3
.100×3
2.54
.100
0.52.54 .020.100
CAD Data
Slim type
PC board type
4 Form C
External dimensions
5.08
.200 5.08
.200 5.08
.200
5.08
.200
5.08
.200
27.8
1.094
4.1
.161
7.62
11.2
.300
.441
0.4
.016
0.2
.008
0.8
.031
38.1
38.9
1.500
1.531
1.500
38.1
5.08
.200
5.08
.200
5.08
.200
5.08
.200 5.08
.200 5.08
.200 5.08
.200
2.54
.100
2.54
.100
Schematic (Bottom view) PC board pattern (Bottom view)
14 15 16131211109
124578 -+
Single side stable:
Deenergized position
.110 dia. 16-.047 dia. hole
2.8 dia. 16-1.2 dia. hole
2.54×3
2.54
.100×3
.100
2.54 0.5
.100 .020
910111213141516
754 218
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
NC
ASCTB12E 201209-T
SAFETY STANDARDS
NOTES
For Cautions for Use.
Product name UL/C-UL (Recognized) CSA (Certified)
File No. Contact rating File No. Contact rating
NC
2 Form C
E43028 5A 250V AC
1/10HP 125, 250V AC
5A 30V DC
LR26550
etc.
5A 250V AC
1/10HP 125, 250V AC
5A 30V DC
4 Form C
E43028 5A 125V AC
4A 250V AC
1/10HP 125, 250V AC
5A 30V DC
LR26550
etc.
5A 125V AC
4A 250V AC
1/10HP 125, 250V AC
5A 30V DC
NC Amber
2 Form C
E43028 3A 250V AC
1/20HP 125, 250V AC
5A 30V DC
LR26550
etc.
3A 250V AC
1/20HP 125, 250V AC
5A 30V DC
4 Form C
E43028 2A 250V AC
1/20HP 125, 250V AC
5A 30V DC
LR26550
etc.
2A 250V AC
1/20HP 125, 250V AC
5A 30V DC
1. Because the NC relay is polarized, the
positive “+” and negative “–” connections
to the coil should be done as indicated on
the wiring diagram. If connected
incorrectly, it may malfunction or fail to
operate.
2. While NC relays can be used with any
transmission-wave current to their
operation, due to slight weakening of the
force of magnetic attraction, decreased
resistance to vibration and shock should
be taken into account.
3. The current that energizes the coil in
an NC relay is AC type. Because the AC
sine waveform is distorted, when testing,
it is essential to use a measuring device
that can properly characterize the
distorted waveform.
The operating power of the coil in the 100
V AC 4 Form C type is relatively higher
than other NC types of AC relay and
consequently, the total current applied
through all the contacts should be kept
below 10 A.
4. The AC type NC relay has a special
magnetic design. As a result, once the a-
side contacts have switched, the b-side
contacts may once again go into a
temporary ON state depending on the
coil inrush phase. To ensure that this
phenomenon does not occur, it is
necessary to carry out sufficient practical
testing with relays installed in actual
devices.
5. When designing top and bottom view
schematic diagrams, note that:
1) “Top view” wiring diagram is indicated
for the flat series because terminals can
be seen from above.
2) “Bottom view” schematic diagram is
indicated for the vertical series because
terminals cannot be seen from above.
6. Cautions for close proximity mounting
When using slim series in close proximity,
mount all relays facing the same
direction. Different mounting directions
may cause change in the relay
characteristics because NC relays are
polarized.
(Same direction)
Top view Vertical series
Flat series Bottom view
