BY-4E type voltage relayDetailed product description：

1. Purpose
BY-4E type voltage relay is a small rated overvoltage relay used in relay protection circuits as a blocking element for directional lateral differential protection.
2. Structural characteristics
The BY-4E voltage relay is a transistor relay. The basic shell adopts the HCK-11A/3 shell from the HCK-10 series shell components, with three installation and wiring methods: protruding front wiring, rear wiring, and embedded rear wiring. Please specify when ordering. The external dimensions and opening dimensions of the relay can be found in the appendix of this manual.

3. Main technical data of BY-4E voltage relay

Exchange amount Constant voltage (V)	Rated frequency Rate (Hz)	*Auxiliary Direct Current voltage (V)	Voltage regulation Defined scope (V)	return coefficient	action time (S)	contact point form	power consumption		contact point disconnect capacity	weight (kg)
							communication	direct current
one hundred and ten	fifty	two hundred and twenty one hundred forty-eight	2~15	≥ zero point eight five	zero point zero four	1. Dynamic combination 1. Dynamic interruption	≤ 6VA	220V≤6W 110V≤4W 48V≤2W	DC 10W Exchange 20VA	one

4. Rear terminal wiring diagram, external resistor appearance and installation dimension diagram