6kA Polarity DC Mini Circuit Breaker

ETM1-63DC Series Miniature Circuit Breaker is specially developed for terminal power distribution protection in DC power supply systems, including photovoltaic power stations, energy storage systems, electric vehicle charging facilities, and DC power distribution cabinets in data centers. It is suitable for circuits with a rated DC voltage of 250V/500V/1000V and a rated current up to 63A, perfectly adapting to the stable current supply requirements of DC scenarios.

Equipped with dual protection functions of overload protection and short-circuit protection, it can also realize infrequent on-off control of DC lines under normal working conditions. With a maximum ultimate short-circuit breaking capacity (Icu) of up to 6kA, it effectively suppresses the arc generated during DC circuit breaking, ensuring safe and reliable protection of the entire DC power distribution system.

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Porduct Overview

IP20 protection:
Finger protected connection terminals.
Modular accessory expansion:
Suitable for the quick and easy mounting of additional components, such as auxiliary switches and fault signal contacts.
EAN code:
The shell comes with pad printed EAN code.
Standard:
IEC 60947-2: Low-voltage switchgear and controlgear -Part 2.
Multiple termination:
Both incoming and outgoing terminals are suitable for: normal cable.
Contact position indication:
Reliable recognition of the switching status through red/green position indicating device.
RoHS compliant:
ETEK uses environmentally friendly state-of-the-art housing material. With the latest generation of halogen free thermoplastics for MCBs, it is now possible to recycle the MCBs completely which reduces environmental pollution. T Series entire range of circuit protection devices conform to RoHS Standards.

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Technical Data

General data
Protection	Overcurrent and short circuit
Type of trip	Thermal-magnetic
No.of poles	1P	2P	4P
Rated operational voltage(Ue)	250VDC	500VDC	1000VDC
Rated current(In)	6,10,16,20,25,32,40,50,63A
Rated insulation voltage(Ui)	500V
Rated impulse withstand voltage(Uimp)(1.2/50μs)	4kV

Data acc.to IEC/EN60947-2
Rated short-circuit capacity (Icn)	6kA
Thermal tripping characteristics	1.05×ln No tripping within an hour;1.3×ln Tripping within an hour
Instantaneous tripping characteristics	8ln-12In

Mechanical data
Electrical life	4,000 Cycles
Mechanical life	10,000 Cycles
Contact position indication	green OFF/red ON
Protection degree	IP20
Ambient temperature	-5℃to+40℃,Max.95%humidty

Installation
Terminal connection type	Cable
Terminal block	Screw press-connected
Max.terminal size for cable	16mm²flexible/25mm²rigid
Max.tightening torque	2.5N.m
Mounting type	Mounting on 35mm DIN rail
Incoming method	According to the wiring diagram

Application