Page 676 - Motor_protection_and_control_Manual_motor_starters_ contactors

AF09..S ... AF26..S 3-pole contactors - with spring terminals

Technical data

Main pole - Utilization characteristics according to IEC
Contactor types AC / DC operated AF09..S AF12..S AF16..S AF26..S
Standards IEC 60947-1 / 60947-4-1 and EN 60947-1 / 60947-4-1
Rated operational voltage Ue max. 690 V
Rated frequency (without derating) 50/60 Hz
Conventional free-air thermal current Ith
acc. to IEC 60947-4-1, open contactors, θ ≤ 40 °C 24 A 24 A 24 A 35 A
With conductor cross-sectional area 2.5 mm² 2.5 mm² 2.5 mm² 4 mm²
AC-1 Utilization category
For air temperature close to contactor
Ie / Rated operational current AC-1 θ ≤ 40 °C 22 A 24 A 24 A 35 A
Ue max. ≤ 690 V, 50/60 Hz θ ≤ 60 °C 18 A 20 A 20 A 30 A
θ ≤ 70 °C 15 A 16 A 16 A 25 A
With conductor cross-sectional area 2.5 mm² 2.5 mm² 2.5 mm² 4 mm²
AC-3 Utilization category
For air temperature close to contactor θ ≤ 60 °C
Ie / Max. rated operational current AC-3 (1)
220-230-240 V 9 A 12 A 18 A 26 A
6 380-400 V 9 A 12 A 18 A 26 A
M 3-phase motors 415 V 9 A 12 A 18 A 26 A
3 440 V 9 A 12 A 18 A 26 A
500 V 9.5 A 12.5 A 15 A 23 A
690 V 7 A 9 A 10.5 A 17 A
Rated operational power AC-3 (1)
220-230-240 V 2.2 kW 3 kW 4 kW 6.5 kW
380-400 V 4 kW 5.5 kW 7.5 kW 11 kW
1500 r.p.m. 50 Hz 415 V 4 kW 5.5 kW 9 kW 11 kW
M 1800 r.p.m. 60 Hz 440 V 4 kW 5.5 kW 9 kW 15 kW
3 3-phase motors 500 V 5.5 kW 7.5 kW 9 kW 15 kW
690 V 5.5 kW 7.5 kW 9 kW 15 kW
Rated making capacity AC-3 10 x Ie AC-3 acc. to IEC 60947-4-1
Rated breaking capacity AC-3 8 x Ie AC-3 acc. to IEC 60947-4-1
AC-8a Utilization category
(without thermal overload relay - Ue 400 V 50/60 Hz - θ ≤ 40 °C)
Ie / Rated operational current AC-8a 12 A 16 A 22 A 30 A
Rated operational power AC-8a 5.5 kW 7.5 kW 11 kW 15 kW
Short-circuit protection device for contactors
without thermal overload relay - Motor protection excluded (2)
Ue ≤ 500 V AC - gG type fuse 25 A 25 A 25 A 40 A
Rated short-time withstand current Icw 1 s 300 A 300 A 300 A 700 A
at 40 °C ambient temperature, 10 s 150 A 150 A 150 A 350 A
in free air from a cold state 30 s 80 A 80 A 80 A 225 A
1 min 60 A 60 A 60 A 150 A
15 min 24 A 24 A 24 A 35 A
Maximum breaking capacity
cos φ = 0.45 at 440 V 250 A 250 A 250 A 500 A
at 690 V 106 A 106 A 106 A 200 A
Power dissipation per pole Ie / AC-1 0.9 W 1.1 W 1.1 W 1.8 W
Ie / AC-3 0.15 W 0.3 W 0.6 W 1 W
Max. electrical switching frequency AC-1 600 cycles/h
AC-3 1200 cycles/h
AC-2, AC-4 300 cycles/h 150 cycles/h
(1) For the corresponding kW/A or hp/A values of 1500 r.p.m, 50 Hz or 1800 r.p.m, 60 Hz, 3-phase motors, see "Motor rated operational powers and currents".
(2) For the protection of motor starters against short circuits, see "Coordination with short-circuit protection devices".

1SBC101689S0201 - Rev. A

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