DIB71CB235MA - Carlo Gavazzi Group

Specifications are subject to change without notice (25.09.06) 1

Monitoring Relays

Product Description Ordering Key

Housing

Function

Type

Item number

Output

Power supply

Measuring range

• TRMS AC/DC over or under current

monitoring relay

• Current measuring through internal shunt

•Selection of measuring range by DIP-switches

•Measuring ranges from 0.1 mA to 5 A AC/DC

•Adjustable current on relative scale

• Adjustable hysteresis on relative scale

• Adjustable delay function (0.1 to 30 s)

• Programmable latching or inhibit at set level

• Output: 5 A SPDT relay N.D. or N.E. selectable

• For mounting on DIN-rail in accordance with

DIN/EN 50 022

• 35.5 mm DIN-rail housing

• LED indication for relay, alarm and power supply ON

•Galvanically separated power supply

Input (current level) Terminals Y1, Y2

Measuring ranges

Direct Internal resist. Max. curr.

Selectable by DIP-switch

..5MA: 0.1 to 1 mA AC/DC 100 Ω40 mA

0.2 to 2 mA AC/DC 100 Ω40 mA

0.5 to 5 mA AC/DC 100 Ω40 mA

Max. current for 1 s 100 mA

..50MA: 1to 10 mA AC/DC 10 Ω120 mA

2to 20 mA AC/DC 10 Ω120 mA

5to 50 mA AC/DC 10 Ω120 mA

Max. current for 1 s 300 mA

..500MA:10 to 100 mA AC/DC 1 Ω700 mA

20 to 200 mA AC/DC 1Ω700 mA

50 to 500 mA AC/DC 1Ω700 mA

Max. current for 1 s 1.4 A

..5A: 0.1 to 1 A AC/DC 0.03 Ω6 A

0.2 to 2 A AC/DC 0.03 Ω6 A

0.5 to 5 A AC/DC 0.03 Ω6 A

Max. current for 1 s 15 A

1-Phase True RMS AC/DC Over or Under Current

Type DIB71

Input Specifications

DIB 71 C B23 5A

DIB71 is a precise TRMS

AC/DC over or under current

(selectable by DIP-switch)

monitoring relays. Direct mea-

suring or through current

transformer.

Owing to the built-in latch

function, the ON-position of

the relay output can be

maintained. Inhibit function

can be used to avoid relay

operation when not desired

(maintenance, transitions).

The LED's indicate the state

of the alarm and the output

relay. Through the built-in

shunt it is possible to moni-

tor loads up to 5 A AC/DC.

35.5 mm wide housing suit-

able both for back and front

panel mounting.

Measuring ranges (cont.)

StandardCT (examples) AACrms Max. curr.

TADK2 50 A/5 A 5 to 50 A 60 A

TAD2 150 A/5 A 15 to 150 A 180 A

TAD6 400 A/5 A 40 to 400 A 480 A

TAD12 1000 A/5 A 100 to 1000 A 1200 A

TACO200 6000 A/5 A 600 to 6000 A 7200 A

Contact input Terminals Z1, Y1

Disabled > 10 kΩ

Enabled < 500 Ω

Latch disable > 500 ms

Type Selection

Mounting Output Measuring range Supply: 24/48 VAC Supply: 115/230 VAC

DIN-rail SPDT 0.1 to 5 mA AC/DC DIB 71 C B48 5mA DIB 71 C B23 5mA

DIN-rail SPDT 1 to 50 mA AC/DC DIB 71 C B48 50mA DIB 71 C B23 50mA

DIN-rail SPDT 10 to 500 mA AC/DC DIB 71 C B48 500mA DIB 71 C B23 500mA

DIN-rail SPDT 0.1 to 5 A AC/DC DIB 71 C B48 5A DIB 71 C B23 5A

2Specifications are subject to change without notice (25.09.06)

Mode of Operation

DIB71 monitors both AC and

DC over or under current

through an internal shunt.

Example 1

(connection between termi-

nals Z1, Y1 - latching func-

tion enabled)

The relay operates and latch-

es in operating position

when the measured value

exceeds (or drops below) the

set level for morethan the

set delay time. Provided that

the current has dropped

below (or has exceeded) the

set point (see hysteresis set-

ting), the relay releases when

the interconnection between

terminals Z1, Y1 is interrupt-

ed or the power supply is

interrupted as well.

The red LED flashes until the

delay time has expired or the

measured value comes back

to a non-alarm value (see

hysteresis setting).

Example 2 (Stardard CT)

(no connection between ter-

minals Z1, Y1 - latch func-

tion disabled)

The relay operates when the

measured value exceeds (or

drops below) the set level for

more than the set delay time.

It releases when the current

drops below (or exceeds) the

set level (see hysteresis set-

ting) or when power supply

is interrupted.

Note

When the inhibit contact is

opened, if the input signal is

already in alarm position, the

delay time needs to elapse

before relay activation.

DIB71

Power supply Overvoltage cat. III

Rated operational voltage (IEC 60664, IEC 60038)

through terminals:

A1, A2 or A3, A2

B48: 24/48 VAC ± 15%

45 to 65 Hz, insulated

B23: 115/230 VAC ± 15%

45 to 65 Hz, insulated

Dielectric voltage

Supply to input 4 kV (1.2/50 µs)

Supply to output 4kV (1.2/50 µs)

Input to output 4 kV (1.2/50 µs)

Rated operational power

AC 3 VA

Supply Specifications

Power ON delay 1 s ± 0.5 s or 6 s ± 0.5 s

Reaction time (input signal variation from

-20% to +20% or from

+20% to -20% of set value)

Alarm ON delay < 100 ms

Alarm OFF delay < 100 ms

Accuracy (15 min warm-up time)

Temperature drift ± 1000 ppm/°C

Delay ON alarm ± 10% on set value ± 50 ms

Repeatability ± 0.5% on full-scale

Indication for

Power supply ON LED, green

Alarm ON LED, red (flashing 2 Hz

during delay time)

Output relay ON LED, yellow

Environment (EN 60529)

Degree of protection IP 20

Pollution degree 3

Operating temperature

5A -20 to 50°C, R.H. < 95%

others -20 to 60°C, R.H. < 95%

Storage temperature -30 to 80°C, R.H. < 95%

Housing

Dimensions 35.5 x 81 x 67.2 mm

Material PA66

Weight Approx. 150 g

Screw terminals

Tightening torque Max. 0.5 Nm

acc. to IEC 60947

Approvals UL, CSA

CE Marking Yes

EMC

Electromagnetic Compatibillity

Immunity According to EN 61000-6-2

Emission According to EN 61000-6-3

General Specifications

Output SPDT relay

Rated insulation voltage 250 VAC

Contact ratings (AgSnO2)µ

Resistive loads AC 1 5 A @ 250 VAC

DC 12 5 A @ 24 VDC

Small inductive loads AC 15 2.5 A @ 250 VAC

DC 13 2.5 A @ 24 VDC

Mechanical life ≥30 x 106operations

Electrical life ≥105operations

(at 5 A, 250 V, cos ϕ=1)

Operating frequency ≤7200 operations/h

Dielectric strength

Dielectric voltage

2kVAC (rms)

Rated impulse withstand volt. 4 kV (1.2/50 µs)

Output Specifications

Specifications are subject to change without notice (25.09.06) 3

Adjust the input range set-

ting the DIP switches 1 and

2as shown in figure.

Select the desired function

setting the DIP switches 3 to

6as shown in figure.

To access the DIP switches

open the plastic cover as

shown in figure.

Selection of level and time

delay:

Upper knob:

Setting of hysteresis on rela-

tive scale: 0 to 30% on set

value.

Centre knob:

Current level setting on rela-

tive scale: 10 to 110% on

full scale.

Lower knob:

Setting of delay on alarm

time on absolute scale (0.1

to30 s).

DIB71

Function/Range/Level and Time Delay Setting

Relay working mode

ON: Normally De-energized

OFF: Normally Energized

Measuring range

SW1 ON ON OFF

SW2 OFF ON ON

5MA 1 mA 2 mA 5 mA

50MA 10 mA 20 mA 50 mA

500MA 100 mA 200 mA 500 mA

5A 1 A 2 A 5 A

Power ON delay

ON: 6 s ± 0.5 s

OFF: 1 s ± 0.5 s

Contact input

ON: Latch function enable

OFF: Inhibit function enable

Monitoring function

ON: Over current

OFF: Under current

Operation Diagrams

Over current - N.D. relay

Under current - N.D. relay

Under current - Latch function - N.D. relay

Over current - Inhibit function - N.D. relay

4Specifications are subject to change without notice (25.09.06)

DIB71

67.267.2

18.718.7

4545

35.535.5

8181

Dimensions

N (-)

A1A3

A215

1618

N (-)

A1A3

A215

1618

Wiring Diagrams

48/230 VAC 24/115 VAC

Latch/Inhibit

enable

Example 1 Example 2