Voltage relays CP-734

Voltage relays CP-734

CP-734

Under voltage. Contacts 3×1N/O.
Voltage relays CP-734 serves to voltage control in three phase mains and to protect receiver against the effects of voltage collapse or increase beyond set values.

Functioning
A voltage relay is used to control voltage in a 3-phase network and secure a receiver against voltage drops below a preset value.
The relay's power supply is signalled by a green U LED. Proper values of network voltage are indicated by yellow LEDs labelled as L1, L2 and L3 in each phase circuit (relay contacts opened). Voltage decay in a phase or its drop below a preset activation threshold results in the opened of the relay contact for this phase (a yellow LED for this circuit will switch off). The contact will be automatically released after the voltage in the phase is reinstated or its increase is 5V over the preset threshold (i.e. the voltage).

Pressing an impulse switch labelled TEST in the circuit of a given phase activates the contact for this phase for the time the switch remains pressed.
 

Typethree-phase
Power supply voltage3×(50÷450 V)+N
Time lockNO
Cooperation with power generatorsYES
The executive element3 × relay
Maximum load current3 × 8 A
Contact configuration3 x NO *
Separation of the contactYES
Power control4 × LED
Operating voltage - adjustable170÷210 V
Return voltage hysteresis5 V
Time of return1,5 s
Operating time0,5 s
terminalscrew terminals 4,0 mm²
Tightening torque0,5 Nm
Power consumption0,8 W
Working temperature-20÷50°C
dimensions3 modules (52,5 mm)
Assemblyon rail 35 mm
Level of securityIP20