6kA Polarity DC Mini Circuit Breaker

6kA Non-Polarity DC Miniature Circuit Breaker

EKM1-63DC is a non-polarized DC miniature circuit breaker designed for photovoltaic, energy storage, and other high-voltage DC applic-ations. Supporting 6-63A at up to 1200VDC and available in 1P/2P/3P/4P configurations, its polarity-free design simplifies installation, eliminates wiring errors, and enables fast, efficient field deployment.

With high-voltage capability, dependable arc suppression, and precise tripping, it ensures reliable performance and enhanced safety for modern systems.

Breaking capacity: 6kA
Current ratings: 6A to 63A
Curves: B, C, K
Rated voltage: 300/600/900/1200 VDC
Non-polarity design: No line/load direction, reduces wiring errors

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Porduct Overview

Standard:
IEC/EN 60947-2.
Poles:
1P, 2P, 3P, 4P.
Insulation voltage:
1200V.
Rated current:
6~63A
Rated breaking capacity:
6kA
Incoming method:
According to the wiring diagram
Rated operated voltage:
300VDC(1P), 600VDC(2P), 900VDC(3P), 1200VDC(4P)

Product Tips

Derating of Altitude

Note: Configure the external bridging busbars as required by the circuit diagram.

Wiring Diagram

Dimension (mm)

Technical Data

Standard		IEC/EN 60947-2
Protection		Overcurrent and short circuit
Type of trip		Thermal-magnetic
No.of poles		1P	2P	3P	4P
Rated voltage(Ue)		300VDC	600VDC	900VDC	1200VDC
Rated currents (In)		6,10,16,20,25,32,40,50,63A
Rated insulation voltage(Ui)		1200V
Rated impulse withstand voltage(Uimp)(1.2/50μs)		6kV
Rated service short circuit breaking capacity (cs)		6kA
Rated ultimate short circuit breaking capacity (lcu)		6kA
Thermal tripping characteristics		1.05×In No tripping within an hour; 1.3×In Tripping within an hour
Instantaneous tripping characteristics		B:4In±20%,C:8ln±20%,K:10ln±20%
Electrical life	Actual value	>1,000 Cycles
	Standard value	1,000 Cycles
Mechanical life	Actual value	>20,000 Cycles
	Standard value	8500 Cycles
Contact position indicator		green OFF/red ON
Overvoltage category		3
Pollution degree		3
Ingress protection		IP40,Wiring port IP20
Resistance to humidity and heat		Class 2
Reference temperature		-30℃
Operating ambient temperature(with daily average≤35℃)		-25℃~+55℃
Ambient temperature		-30℃~+70℃
Terminal connection type		Cable
Max.terminal size for cable		16mm²flexible/25mm²rigid
Max.tightening torque		2.5N.m
Installation		Mounting on 35mm DIN rail
Incoming method		According to the wiring diagram