Page 127 - contactors_motor_protection_for_rolling_stock_application

AF09(Z)B ... AF38(Z)B 4-pole contactors

Technical data

General technical data
Contactor types AF09(Z)B AF16(Z)B AF26(Z)B AF38(Z)B
Rated insulation voltage Ui
acc. to IEC 60947-4-1 690 V
acc. to UL / CSA 600 V 2
Rated impulse withstand voltage Uimp. 6 kV
Electromagnetic compatibility Devices complying with IEC 60947-1 / EN 60947-1 - Environment A
EN 50121-3-2
Ambient air temperature
Operation in free air -40...+70 °C
Storage -60...+80 °C
Climatic withstand Category B according to IEC 60947-1 Annex Q
Maximum operating altitude (without derating) 3000 m
Mechanical durability
Number of operating cycles 10 millions operating cycles
Maximum switching frequency 3600 cycles/h
Shock and vibration withstand
acc. to IEC 61373 Category 1, class B

Remark for 4-pole contactors fitted with 2 N.O. + 2 N.C. main poles

1 R3 R5 7
These contactors are suitable for controlling 2 separate circuits, i.e. 2 loads with 2 separate supplies, or 1 circuit comprising
2 separate loads with a single supply (see diagrams below). When the contactor operates there is no mechanical overlapping
between the N.O. poles and the N.C. poles: BREAK before MAKE.
2 R4 R6 8

!
These contactors are not suitable for a reversing starter or for controlling a single load from 2 separate supplies.
Block diagrams
– Single supply and 2 separate loads – 2 separate supplies and 2 separate loads

Main
Supply supply
Back-up
supply
A1 1 R3 R5 7 A1 1 R3 R5 7

A2 2 R4 R6 8 A2 2 R4 R6 8
Load Load
Load Load

1SBC100122S0201

ABB | 2/115