Product Introduction

EKM6DC-400 DC Molded Case Circuit Breaker is designed for high-voltage DC systems, supporting rated currents from 250A to 400A and voltages up to 1500V. Its robust design ensures reliable protection against overloads and short circuits, making it suitable for solar PV, wind power, and battery storage systems. With compliance to IEC60947-2 standards, it offers excellent insulation performance and breaking capacity for demanding applications.

Product Parameters

Model			EKM6DC-400		EKM6DC-400V
Ampere frame (Inm)			400A		400A
Rated current (In)			250,315,350,400		250,315,350,400
Rated impulse withstand voltage (Uimp)			12kV
Rated operational voltage (Ue)		2P	250,500,750,1000,1250,1500 VDC
		3P	1000,1500 VDC
Rated ultimate short-circuit Breaking capacity (Icu) kA	2P	DC250V	25		70
		DC500V	25		70
		DC750V	15		50
		DC1000V	15		50
		DC1250V	/		20
		DC1500V	10		20
	3P	DC1000V	30		/
		DC1500V	25		/
Rated service short-circuit breaking capacity (Ics) kA			100% Icu
Isolation function			Available
Utilization category			Cat.A
Type of trip unit			Thermal-Magnetic
Mechanical life (Times)			15000
Electrical life (Times)			1000	800
Arcing distance (mm)			≤100

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