JCDY,JCDY-2 series DC voltage relayDetailed product description：

JCDY, JCDY-2 series DC voltage relay (abbreviated as relay F) is used for overvoltage and undervoltage detection or protection of various DC power sources in power stations or other occasions
Protection can be used as a matching device for DC screens and cadmium nickel battery screens. This relay adopts an integrated operational amplifier circuit and an intermediate relay for the outlet. It has the characteristics of large output capacity, stable and reliable, sensitive action, small setting error, high return coefficient (overvoltage), good linearity, no noise, and uses digital dialing to set the action value. It is intuitive and convenient to use, making it an ideal replacement product for voltage measurement components in DC systems.

2. Main technical parameters

specification	protection method	Setting range (DC)
JCDY-2/G220V	Overvoltage protection	220-279V
JCDY-2/G220V	Long term pressure protection	180-220V
JCDY-2/G110V	Overvoltage protection	110-150V
JCDY-2/G110V	Long term pressure protection	80-110V
JCDY-2/G48V	Overvoltage protection	48-56V
JCDY-2/Q48V	Long term pressure protection	40-48V
JCDY-2/G20V Special Characteristics	Overvoltage protection	160-299V　280-320V

Rated DC voltage: 220V, 110V, 48V.
Return coefficient: overvoltage not less than 0.97; The undervoltage is not greater than 1.03.
Setting error: not greater than ± 2%.
Action time: Under normal conditions, the action time should not exceed 25ms;
Return time: Under normal conditions, the return time should not exceed 25ms;
Power consumption: not exceeding 10W.
Contact capacity: In a DC inductive load circuit with a voltage not exceeding 250V, a current not exceeding 5A, and a time constant of 5 ± 0.75ms, the output contact of the product has a breaking capacity of 50W. Under the specified load conditions, the output contact of the product can reliably operate and return 5 × 104 times. The long-term allowable current for the output contact is 5A

Internal wiring of JCDY and JCDY-2 series DC voltage relays

4. Appearance and opening size

A: Protruding fixed wiring housing;



B: Protruding plug-in structure shell 7.



C: Embedded plug-in structure shell 4



JCDY, JCDY-2 series DC voltage relay