Page 124 - contactors_motor_protection_for_rolling_stock_application

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

Technical data

Main pole - Utilization characteristics according to IEC
Contactor types AF09(Z)B AF16(Z)B AF26(Z)B AF38(Z)B
Standards IEC 60947-1 / 60947-4-1 and EN 60947-1 / 60947-4-1
IEC 60077-1, IEC 60077-2, EN 50155 (applicable parts)
2 Fire and smoke EN 45545-2 (HL2, HL3)
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 35 A 35 A 55 A 55 A
With conductor cross-sectional area 6 mm² 6 mm² 16 mm² 16 mm²
AC-1 Utilization category
For air temperature close to contactor
Ie / Rated operational current AC-1 θ ≤ 40 °C 25 A 30 A 45 A 55 A
Ue max. ≤ 690 V, 50/60 Hz θ ≤ 60 °C 25 A 30 A 40 A 45 A
θ ≤ 70 °C 22 A 26 A 32 A 37 A
With conductor cross-sectional area 4 mm² 6 mm² 10 mm² 16 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 18 A 23.2 A 23.2 A
380-400 V 9 A 18 A 22 A 22 A
415 V 9 A 18 A 21.2 A 21.2 A
M 3-phase motors 440 V 9 A 18 A 20 A 20 A
3 500 V 9.5 A 15 A 17.6 A 17.6 A
690 V 7 A 10.5 A 10.5 A 10.5 A
Rated operational power AC-3 (1)
220-230-240 V 2.2 kW 4 kW 5.5 kW 5.5 kW
380-400 V 4 kW 7.5 kW 11 kW (2) 11 kW (2)
1500 r.p.m. 50 Hz 415 V 4 kW 9 kW 11 kW 11 kW
M 1800 r.p.m. 60 Hz 440 V 4 kW 9 kW 11 kW 11 kW
3 3-phase motors 500 V 5.5 kW 9 kW 11 kW 11 kW
690 V 5.5 kW 9 kW 9 kW 9 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
Short-circuit protection device for contactors
without thermal overload relay - Motor protection excluded
Ue ≤ 500 V AC - gG type fuse 25 A 32 A 50 A 63 A
Rated short-time withstand current Icw 1 s 300 A 300 A 450 A 450 A
at 40 °C ambient temperature, 10 s 150 A 150 A 300 A 300 A
in free air from a cold state 30 s 80 A 80 A 225 A 225 A
1 min 60 A 60 A 150 A 150 A
15 min 35 A 35 A 55 A 55 A
Maximum breaking capacity at 440 V 250 A 250 A – –
cos θ = 0.45 at 690 V 106 A 106 A – –
Power dissipation per pole Ie / AC-1 0.8 W 1.2 W 1.6 W 2.3 W
Ie / AC-3 0.1 W 0.35 W 0.42 W 0.42 W
Max. electrical switching frequency AC-1 600 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, 1-phase or 3-phase motors, see "Motor rated operational powers and currents".
(2) 400 V 3-phase motor only.
Main pole - Utilization characteristics according to UL / NEMA / CSA
Contactor types AF09(Z)B AF16(Z)B AF26(Z)B AF38(Z)B
Standards UL 508, CSA C22.2 N°14
Maximum operational voltage 600 V
UL / CSA general use rating
600 V AC 25 A 30 A 45 A 55 A
With conductor cross-sectional area AWG 10 AWG 10 AWG 8 AWG 6
Maximum electrical switching frequency
For general use 600

1SBC100121S0201

2/112 | ABB