SINGLE PHASE TIME OVERCURRENT RELAYS

These economical, microprocessor, single-phase, time overcurrent relays provide overcurrent protection for phase or ground applications.

Self powered from 50/60Hz systems, available for 1 or 5 amp CTs
Replicates decaying reset of electromechanical relays, even when the relay is powered down (optional)
Independent instantaneous element
Drawout construction
Direct reading controls for settings
10 selectable curves and wide pickup range simplifies specifying and stocking

BE1-50/51B Time Overcurrent Relay

Available in S1 style case or A-1 case (option)
Testable in case
Drawout construction

Download Bulletin UHD for more information or download the instruction manual.

BE1-50/51B Self-Powered Time Overcurrent Relay Retrofit Kits

The BE1-50/51B Time Overcurrent Relay Retrofit kits provide economical, modern replacements for electromechanical overcurrent relays in a variety of applications.

For application details, view the Upgrade Experts chart.

5 Amp System CT Secondaries	Retrofit Relay Packages	Instantaeous Elements	Model
	Complete CO replacement relay with same terminal connections as CO units. New case fits FT-11 size cutout.	2	BE1-50/51B-244
	Retrofit kit for CO relays. Cradle plugs into existing case. New cover included. Retrofit kit for CO relays	1	BE1-50/51B-219
	Retrofit kit for CO relays (FT-21 case). Replacement glass for existing cover is included. Cradle plugs into existing case.	1	BE1-50/51B-240
	Retrofit kit for CO relays (FT-21 case). Replacement glass for existing cover is included. Cradle plugs into existing case.	2	BE1-50/51B-241
	Retrofit kit for CO relays. Cradle plugs into existing case. New cover included.	2	BE1-50/51B-235
	Complete IAC replacement relay with same terminal connections as IAC units. S1 style case.	1	BE1-50/51B-232
	Complete IAC replacement relay with 50 and 51 on shared terminals. S1 style case.	1	BE1-50/51B-218
	Complete IAC66K replacement relay with same terminal connections as IAC66K units. S1 style case w/ cover.	2	BE1-50/51B-239
	Retrofit kit for IAC66K relay Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	2	BE1-50/51B-230
	Retrofit kit for IAC relays Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	1	BE1-50/51B-214 BE1-50/51B-215 BE1-50/51B-231
	Retrofit kit for IAC relays Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	2	BE1-50/51B-237
	Retrofit kit for SFC relays Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	1	BE1-50/51B-229 (see Bulletin UHK for details)
1 Amp System CT Secondaries	Retrofit kit for CO relays Cradle plugs into existing case. New cover included.	1	BE1-50/51B-226
	Retrofit kit for CO relays 2 Cradle plugs into existing case. New cover included.	2	BE1-50/51B-236
	Complete IAC replacement relay with same terminal connections as IAC units.S1 style case.	1	BE1-50/51B-228
	Retrofit kit for IAC66K relay Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	2	BE1-50/51B-234
	Retrofit kit for IAC relays Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	1	BE1-50/51B-225
	Retrofit kit for IAC relays Cradle plugs into existing case. Adapter plate, new cover, and connection plug included.	2	BE1-50/51B-238

Download Bulletin UHK for more information or download the instruction manual for the model that fits your application.


BE1-50/51M Time Overcurrent Relay Compact size C-1 case (6.88"x4.00"x7.00" deep) Requires external test provisions A rack mounting plate is available to vertically mount four BE1-50/51M units in a standard 19-inch rack.


		BE1-50/51M for Horizontal Mounting

BE1-50/51M in 4 unit rack