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EMD LOCOMOTIVE RELAYS

GENERAL PURPOSE

HIGH CAPACITY

TIME DELAY RELAYS TLTD

TOWER RELAYS

AIR COMPRESSOR DRIVE KITS

GE LOCOMOTIVES

EMD LOCOMOTIVES

EMD FAN CONTACTORS

60/70/80/90 SERIES

DASH 2

RELAY INTERFACE CABINETS

SPECIAL ORDER PRODUCTS

VARIABLE FREQUENCY DRIVES

CONTACT US

60/70/80/90 SERIES
FAN CONTACTORS

  • Measurements on 70 series locomotives indicates that the original OEM fan contactors are marginally rated for the operation encountered:
    • FCF-B steady state current exceeds contactor rating by approximately 15 percent
    • FCF-B starting surge current exceeds contactor rating by approximately 67 percent
    • FCS steady state current exceeds rating by approximately 10 percent


Cooling Fan/Blower Contactor Ratings
Original Installation Versus RSA Upgrade

Existing OEM Contactor
NEMA Size 3
AC-3 Rating - 90 amps
Surge Rating - 800 amps

RSA Contactor
NEMA Size 4
AC-3 Rating - 180 amps
Surge Rating - 1800 amps

EMD FAN CONTACTORS
70 SERIES FAN CONTACTORS

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