Esco LYGHT 50A Relay Base Automatic Transfer Switch

5+ In Stock
Item #
Automatic transfer switch, 50A 120/240V relay based with terminal strip.
More Information
Item # 12989
Brand ESCO
Model LPT50BRD
Input 240VAC 1PH 60HZ, 2 poles at 50 Amps per pole.
Amperage 50 Amp
Features 240 VAC, 4 Poles, 50 Amps per pole.
Relay based.
Heavy duty relay assembly will handle 50 amp power cord and up to 12kw generator.
Transfers two hot poles and neutral simultaneously.
Generator start up delay is provided to allow the generator to get up to speed.
Utilizes a micro switch on the neutral relay to ensure neutral lines are engaged before the hot lines.
Designed with dc coiled relays to reduce hum, and terminal blocks to simplify wire connections.
Quick and easy installation.
Designed for oem and aftermarket applications.
Dimensions Enclosure: 8-1/2" x 8-1/2" x 4-1/2".
Warranty 1 Year
Net Weight 7.95
Special Order Item No
UPC 765053382465
WARNING: This product can expose you to chemicals, which is known to the State of California to cause cancer and reproductive harm. For more information, go to
Frequently Bought Together
Total price

Automatically switches from power cord to generator.

The LPT50BRD is intended for use as an electrical transfer switch to automatically switch multiple sources (from one to another), i.e. switching from shoreline to generator power.

The LPT50BRD is primarily designed for installation in conjunction with a generator having a rated output of no more than 12KW and an external power cord having a rated output of no more than 240VAC 1PH 60HZ, 2 poles at 50 Amps per pole.

CONTACTORS: General Purpose DPDT 50 Amp relays.
COIL: 110 VDC 2 Watts.
TIME DELAY: Custom time delay, 30 seconds nominal. Can be bypassed for instant switching.
KNOCKOUTS: Assorted.
WEIGHT: 7.95 lbs.

Install vertically or horizontally in a dry, accessible area
Consult factory before drilling metal case
Keep covered except during wiring as contactors are sensitive to debris
Hi-pot with lpt50brd disconnected or hi-pot on load side of switch.
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