Page 204 - contactors_motor_protection_for_rolling_stock_application

AF50..RT ... AF95B..RT 3-pole contactors

Technical data

Main pole - Utilization characteristics according to UL / NEMA / CSA
Contactor types AF50..RT AF63..RT AF75..RT AF95B..RT
Standards UL 508, CSA C22.2 N°14
Max. operational voltage 600 V
NEMA size 2 – 3 –
NEMA continuous amp rating Thermal current 45 A – 90 A –
NEMA maximum horse power ratings 1-phase, 60 Hz
115 V AC 3 hp - – –
3 230 V AC 7-1/2 hp – – –
NEMA maximum horse power ratings 3-phase, 60 Hz
200 V AC 10 hp – 25 hp –
230 V AC 15 hp – 30 hp –
460 V AC 25 hp – 50 hp –
575 V AC 25 hp – 50 hp –
UL / CSA general use rating
600 V AC 80 A 90 A 105 A 125 A
With conductor cross-sectional area AWG 4 AWG 3 AWG 2 AWG 1
UL / CSA maximum 1-phase motor rating
Full load current 120 V AC 34 A 56 A 80 A 80 A
240 V AC 40 A 50 A 68 A 88 A
Horse power rating 120 V AC 3 hp 5 hp 7.5 hp 7.5 hp
240 V AC 7.5 hp 10 hp 15 hp 20 hp
UL / CSA maximum 3-phase motor rating
Full load current (1) 200-208 V AC 48.3 A 62.1 A 78.2 A 92 A
220-240 V AC 54 A 68 A 80 A 80 A
440-480 V AC 52 A 77 A 77 A 77 A
550-600 V AC 52 A 77 A 77 A 77 A
Horse power rating (1) 200-208 V AC 15 hp 20 hp 25 hp 30 hp
220-240 V AC 20 hp 25 hp 30 hp 30 hp
440-480 V AC 40 hp 60 hp 60 hp 60 hp
550-600 V AC 50 hp 75 hp 75 hp 75 hp
Short-circuit protection device for contactors
without thermal overload relay - Motor protection excluded
Fuse rating 175 A 200 A 200 A 200 A
Fuse type, 600 V FRS-R J
Max. electrical switching frequency
For general use 300 cycles/h
For motor use 300 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”.

1SBC100076S0201 - Rev. A

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