Auto Recloser

MT53

MT53 auto reclosers are designed to automatically restart the associated protective device after it has an untimely trip. It is a compact type with 18mm. The time sequence and reclosing program are fixed in the device. Dry contact , RS485, DC24V, 48V,60V are for options. MT53 can be in conjunction with MCB, RCCB, and RCBO from Chint, Nader, Schneider, etc.

Specification Product pictures Data download

Features

Remote reclosing of MCB MM50H, RCBO MR50-32, RCBO50-40, RCCB ML50H

Remote control of MCB, RCBO, and RCCB through PLC or platform with RS485 connection

Remote control of MCB, RCBO, and RCCB through dry contact connection

Reclose itself if there is no faulty, and it may output the signal to remote terminals if it is faulty

Padlocking to secure the circuit and assure the safety of people when maintenance

Together with MCB, RCBO, and RCCB, it may offer overload, short circuit, and earth leakage protection

Local control via the handle

Compact module with 18mm only

With remote auxiliary contact NO & NC

Electrical Features
	Item Code	MT53NA/MT53RA
	Rated Voltage Ue (Vac)	230
	Rated Frequency (Hz)	50/60
	Power Consumption (VA)	<1.5
	Standby Power	-
	Insulation Voltage Ui (Vac)	4000V/min
	Trip Time (s)	<=1.5
	Trips (Times)	3
	Time Delay (s)	10, 60, 300
	Reclosing Time (s)	<=3
	Reset System (ISPDT)	Rated Current 5A (250VAC) resistant load
	Pollution Degree	2
Mechnical Features
	Width (mm)	18
	Electrical Life (times)	10000
	Mechanical Life (times)	20000
	Protection Degree	IP20
	Reference Temperature for Setting of Thermal Elecment (℃)	30
	Ambient Temperature (℃)	-25---+55
	Storage Temperature (℃)	-40---+70
Installation
	Humidity (℃)	95%
	Terminal Connection Type	Cable
	Terminal Size Top/Bottom for Cable (mm2)	1x25.2x25
	*Tightening Torque (Nm)**	4
	Mounting	On Din rail En60715(35mm) by means of fast clip device
	Connection	From top to bottom
Communication Port		Remote auxiliary contacts NO & NC
Compatiable Device		MCB,RCCB,RCBO from Matismart, Chint, Nader and Schneider. Customized.