QTW Framework circuit breaker undervoltage releaseDetailed product description：

The function of QTW undervoltage release is to detect the voltage at the incoming terminal of the circuit breaker. When the working voltage in the protected circuit drops to 35%~70% of the voltage, it automatically disconnects the circuit breaker and cuts off the load power supply, so that the load electrical equipment connected to the circuit breaker is not damaged by low voltage.
Complies with the requirements of GB 14048.1 "General Principles for Low Voltage Switchgear and Control Equipment" standard
Complies with the requirements of GB 14048.2 "Low Voltage Switchgear and Control Equipment - Low Voltage Circuit Breakers" standard

functional structure
It has both instantaneous and delayed actions, with adjustable delay time settings
Divided into two types of structures: assisted suction and self-priming
Digital circuit control, strong anti-interference ability, able to pass various EMC and EMI tests
Can be matched with DW45 and DW450 frame circuit breakers of various current specifications

Performance parameters of QTW frame circuit breaker undervoltage release

Switch housing frame	Voltage specifications	Stable current (mA)	Stable power consumption (W)	Release force (N)	Release stroke (mm)
800~1600A	AC400V	twenty-seven	ten point eight	≥12	≥9
	AC230V	forty-two	nine point seven
2000~6300A	AC400V	sixty-five	twenty-six	≥10	≥8
	AC230V	one hundred	twenty-three

Typical wiring diagram or outline drawing
QTW frame circuit breaker undervoltage release 800~1600A undervoltage release outline drawing

Outline drawing of 2000~6300A undervoltage release device