Control Relays

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Description

0.06 to 110 kW at 400/415V: type 2 coordination
Type 2 Coordination
According to IEC 60439-4-1, type 2 coordination requires that in the event of a short circuit,
– contactor or starter must not present any danger to personnel or installation
– must subsequently be able to resume operation
Number of contacts Composition Basic reference
Complete with
code indicating
control circuit
voltage (1)
NO NC
0.06 to 110 kW at 400/415V: type 2 coordination
5 5
3

2
CAD50••
CAD32••
Instantaneous auxiliary contact blocks for connection by screw clamp terminals
Number Maximum number per device Composition Reference
front side NO NC
For use in normal operation environments
2 1

1

1

1 on LH side

1 on LH side

1 on LH side
1
1
2
2

1
1


2
2
LADN11
LAD8N11
LADN20
LAD8N20
LADN02
LAD8N0
4 (2) 1 2
1
4

3
2
3

4
1
LADN22
LADN13
LADN40
LADN04
LADN31
4 (2) 1 2 2 LADC22

Including 1 N/O and 1 N/C make before break.

Time delay auxiliary contact blocks for connection by screw clamp terminals
Max. number
per device
Unlatching
control
Basic reference to complete
for control voltage (4)
Front Manual or electric LA6DK10•
Coil suppressor modules (for mounting on CAD control relay)
Type Operational voltage Reference
RC circuits 24…48Vac
110…240Vac
LAD4RCE
LAD4RCU
Varistors 24…48Vac
50…127Vac
110…250Vac
LAD4VE
LAD4VG
LAD4VU
Bidirectional peak
limiting diode
24Vac
72Vac
LAD4TB
LAD4TS
a.c.
Volts ~ 24 110 220 230 240
50/60 Hz B7 F7 M7 P7 U7
d.c. (coils with built-in suppression as standard)
Volts 24 110
U 0.7…1.25 Uc BD FD
Low consumption (coils with built-in suppression as standard)
Volts 24 110
U 0.7…1.25 Uc BD FD

 

Low consumption (coils with built-in suppression as standard)
Volts 24
Code BL

(2) Blocks with 4 auxiliary contacts cannot be used on low consumption control relays.
(3) Power should not be simultaneously applied or maintained to the mechanical latching block and the CADN.The duration of the control
signal to the mechanical latching block and the CAD should be 100ms.
(4) Standard control circuit voltages

Volts 50/60 Hz 24 110/127 220/240 256/277 380/415
Code B F M U Q