EATON NZMH2-A10 3-Pole Molded Case Circuit Breaker 10A 690V

The EATON NZMH2-A10 stands apart from typical molded case circuit breakers by combining a remarkably high 150 kA breaking capacity at 400 V with a compact frame, making it a reliable choice for industrial power distribution where fault currents can be extreme. Its fixed thermal-magnetic trip unit is precisely calibrated for 10 A, ensuring dependable protection without complex adjustments.

Highlights

• 3-pole configuration for three-phase systems
• Rated current of 10 A with fixed thermal and magnetic releases
• Exceptional short-circuit breaking capacity: 150 kA at 400 V AC
• Wide operational voltage up to 690 V AC
• Robust screw terminals suitable for cable lugs
• Complies with IEC/EN 60947-2 for industrial switchgear

In daily use

This breaker is engineered for fixed installation in motor control centers, distribution boards, and other industrial enclosures. The thermal release protects against overloads, while the magnetic release responds instantly to short circuits at 10 times the rated current. Its IP20 terminal protection and wide operating temperature range from -25 °C to +70 °C ensure reliable performance in harsh environments. The mechanical endurance of 20,000 cycles and electrical endurance of 10,000 cycles reduce maintenance frequency and downtime.

Full specifications

• Product type: Molded Case Circuit Breaker (MCCB)
• Number of poles: 3
• Rated current (In): 10 A
• Rated operational voltage (Ue): 690 V AC
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Rated short-circuit breaking capacity (Icu) at 400 V: 150 kA
• Rated short-circuit breaking capacity (Icu) at 690 V: 50 kA
• Rated short-circuit service breaking capacity (Ics) at 400 V: 150 kA
• Trip unit type: Thermal-magnetic release
• Overload release setting (Ir): Fixed at 10 A
• Short-circuit release setting (Ii): Fixed at 10 x In (100 A)
• Connection type: Screw terminals (suitable for cable lugs)
• Mounting type: Fixed installation
• Protection degree: IP20 (terminals), IP00 (front)
• Standard compliance: IEC/EN 60947-2
• Operating temperature range: -25 to +70 °C
• Electrical life: 10,000 cycles
• Mechanical life: 20,000 cycles

Final note

The EATON NZMH2-A10 is a high-performance MCCB that delivers peace of mind in demanding electrical installations, backed by EATON's reputation for quality and safety.