Product Introduction

EKM6-250H is an advanced molded case circuit breaker designed for demanding industrial environments. With a frame rating of 250A and adjustable current settings from 63A to 250A, this versatile protection device offers exceptional flexibility for various applications.

The unit features superior short-circuit protection with a breaking capacity (Icu) of 50kA at 800V, 20kA at 1000V, and 15kA at 1140V, ensuring reliable protection even in high-fault conditions. Its service breaking capacity (Ics) of 35kA at 800V ensures continued performance after short-circuiting events.

Built to IEC60947-2 standards with 3-pole configuration, the EKM6-250H provides 1150V insulation voltage and 12kV impulse withstand capability. The thermal-magnetic trip unit delivers precise overcurrent protection across an operating temperature range of -25°C to +40°C. With a mechanical life of 20,000 operations and electrical life of 1,500 operations, the EKM6-250H offers long-term reliability for critical power distribution systems.

Product Parameters

Model		EKM6-250H
Ampere frame (Inm)		250A
Rated current (In)		63,80,100,125,140,160,180,200,225,250A
Rated insulation voltage (Ui)		1150V
Rated impulse withstand voltage (Uimp)		12kV
Rated operational voltage (Ue)		800V, 1000V, 1140V
Rated ultimate short-circuit Breaking capacity (Icu) kA	800V	50
	1000V	20
	1140V	15
Rated service short-circuit breaking capacity (Ics) kA	800V	35
	1000V	15
	1140V	15
Isolation function		Available
Utilization category		Cat.A
Type of trip unit		Thermal-Magnetic
Mechanical life (Times)		20000
Electrical life (Times)		1500

Recommended Products

EKM6-400H 400A Enhanced Circuit Breaker with Superior Insulation for Critical Applications

EKM6-400H delivers superior 400A circuit protection with enhanced 1250V insulation rating. Ideal for heavy industrial applications with 50kA breaking capacity and multiple current ranges.

EKM6-315H 315A Professional Circuit Breaker with Enhanced Protection Features

EKM6-315H is a high-performance moulded case circuit breaker designed for medium-sized industrial applications requiring robust electrical protection.

Type 1+2 Combined Protection | 40kA DC SPD | 1500V Solar PV Surge Arrester

EKU5-T1+T2-40PV is a high-performance surge protective device (SPD) engineered specifically for solar photovoltaic (PV) systems. Classified as a Type 1+2 SPD, it offers robust protection against overv

EKU5-T2-40PV Type 2 Surge Protective Device (SPD) for Photovoltaic Systems

EKU5-T2-40PV is a Class II surge protection device engineered for photovoltaic systems, offering robust DC-side protection compliant with IEC/EN61643-31 standards. Designed for commercial and utility-

News&Blog

What is Combiner Box?

2025/06/14

A combiner box, also known as a junction box, is a crucial electrical enclosure widely applied in photovoltaic (PV) systems, electrical power distribution networks, and diverse industrial applications.

What is a solar inverter?

2025/05/27

A solar inverter is a critical electronic device that converts DC electricity from solar panels into AC electricity for homes, businesses, and the grid.

What Is MCB?

2025/05/20

A Miniature Circuit Breaker (MCB)—named for its compact size and role in "breaking" (interrupting) electrical circuits— is a vital electro-mechanical safety device. It protects circuits from damage ca

What is RCCB?

2025/05/06

A Residual Current Circuit Breaker (RCCB) is a critical safety device in low-voltage electrical systems, designed to detect and interrupt leakage currents to prevent electric shocks and fire hazards.

EKM6-250H 250A Compact MCCB with 50kA Breaking Capacity