4.5kA Miniature Circuit Breaker

ETM1-63S Series Miniature Circuit Breaker is specifically designed for terminal power distribution protection in commercial office buildings, residential premises, and general industrial applications. It is suitable for circuits with AC 50/60Hz, a rated voltage of 110/240/415V, and a rated current up to 63A.

Featuring overload and short-circuit protection, it can also be used for infrequent line switching operations under normal conditions. With a rated short-circuit capacity (Icn) of up to 4.5kA, it ensures reliable circuit protection.

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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 60898-1: Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations - Part 1.
Multiple termination:
Both incoming and outgoing terminals are suitable for: normal cable, pin type busbars.
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.

Product Tips

Wiring Diagram

Dimension (mm)

Technical Data

General data
Protection	Overcurrent and short circuit
Type of trip	Thermal-magnetic
No.of poles	1P,2P,3P,4P
Rated operational voltage(Ue)	1P:110/230V,120/240V,230/400V,240/415V 2P,3P,4P:230/400V,240/415V,400/415V
Rated current(In)	1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A
Rated frequency	50/60Hz
Rated insulation voltage(Ui)	415V
Rated impulse withstand voltage(Uimp)(1.2/50μs)	6kV
Dielectric testvoltage	2KV(50/60Hz,1 min.)
Fire resistance (glow-wire test)	960±15℃(Enclosure);650±10℃(Handle)
Pollution degree	2

Data acc.to IEC/EN 60898-1
Rated short-circuit capacity (lcn)	4.5kA
Rated service short-circuit breaking capacity (lcs)	4.5kA
Thermal tripping characteristics	1.13×In No tripping within an hour;1.45×In Tripping within an hour
Instantaneous tripping characteristics	B:3In-5In;C:5In-10ln;D:10ln-20ln

Mechanical data
Electrical life	4,000 Cycles
Mechanical life	20,000 Cycles
Contact position indication	green OFF/red ON
Protection degree	IP20
Reference temperature	30℃
Operating ambient temperature(with daily average≤35℃)	-25℃~+55℃
Storage temperature	-30℃~+70℃

Installation
Terminal connection type	Cable/Pin-type
Termina 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	Bi-Directional

Auxiliary for remote tripping or signaling
Auxiliary Contact	Yes
Auxiliary&Alarm Contact	Yes
Shunt Release	Yes
Shunt Release &Auxiliary Contact	Yes
Voltage Loss Release	Yes
Over-voltage Release	Yes
Undervoltage Release	Yes
Over-undervoltage Release	Yes
Mechanical Interlock	Yes

Application