Page 424 - Motor_protection_and_control_Manual_motor_starters_ contactors

AF09 ... AF80 4-pole contactors

Technical data

General technical data
Contactor types AC / DC operated AF09 AF16 AF26 AF38 AF40 AF52 AF80
Rated insulation voltage Ui
acc. to IEC 60947-4-1 690 V 1000 V
acc. to UL / CSA 600 V
Rated impulse withstand voltage Uimp. 6 kV 8 kV
Electromagnetic compatibility Devices complying with IEC 60947-1 / EN 60947-1 - Environment A and B (1)
Ambient air temperature close to contactor
Operation -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
Max. switching frequency 3600 cycles/h
Shock withstand
5 acc. to IEC 60068-2-27 and EN 60068-2-27
Mounting position 1
Shock direction 1/2 sinusoidal shock for 11 ms: no change in contact position, closed or open position
4 N.O. A 30 g 20 g
Main poles B1 25 g Closed position / 5 g Open position 20 g Closed position / 5 g Open position
B2 15 g 10 g
C1 25 g 20 g
C1 C2 25 g 20 g
2 N.O. + 2 N.C. A 30 g 30 g Closed position / 20 g
Main poles 25 g Open position
A A B1 B2
B1 25 g Closed position / 25 g Closed position / 20 g Closed position / 20 g Closed position /
5 g Open position 5 g Open position 5 g Open position 4 g Open position
C2 B2 15 g 15 g Closed position / 10 g
10 g Open position
C1 25 g 25 g Closed position / 20 g
20 g Open position
C2 25 g 25 g Closed position / 20 g
20 g Open position
Vibration withstand 5 ... 300 Hz 5 ... 300 Hz
acc. to IEC 60068-2-6 4 g Closed position / 2 g Open position 3 g Closed position / 2 g Open position
(1) Environment B: all AF09 … AF38 contactors produced since week 08-2013. AF09 … AF38-..-..-12 (48...130 V 50/60 Hz-DC) compliant to environment A only.
For environment B: select AF09 … AF38-..-..-22.

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 1SBC101990S0201 - Rev. A
Load Load
Load Load

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