HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2 Moulded Case Circuit Breaker
HM2

Zero Flying Arc MCCB | 1250A 690V Compact Modular

The HM2 series moulded case circuit breaker features zero flying arc, compact modular design, and high breaking capacity (up to 50kA). Rated insulation voltage 750V, working voltage up to 690V, current up to 1250A. Ideal for infrequent circuit switching and motor starting. IEC60947‑1/2 compliant.

Describe Display

The HM2 series moulded case circuit breakers are designed with the latest current-limiting principles and manufacturing technologies. They feature a compact structure, full modularization, high breaking capacity, and zero flying arc.

With a rated insulation voltage of 750V, these breakers are suitable for 50Hz AC circuits with a rated working voltage of 690V and a rated working current of up to 1250A. They are used for infrequent circuit conversion and infrequent motor starting.

Equipped with overload, short-circuit, and undervoltage protection devices, the breakers protect lines and power equipment from damage. They comply with IEC60947-1 and IEC60947-2 standards.

Quality & Compliance

  • IEC60947‑1 & IEC60947‑2 certified – full compliance with international low‑voltage switchgear standards.
  • Zero flying arc design – certified for safe operation in standard distribution boards.
  • Compact modular construction – reduces footprint, simplifies logistics and maintenance.
  • High short‑circuit making capacity – ensures selective coordination in industrial networks.
  • Manufactured under an ISO 9001 quality management system.
Specifications

Key Specifications – HM2 Series

Rated current range 16A – 1250A (up to 1600A for 1600N frame)
Rated working voltage (Ue) 400V / 440V / 690V (model dependent)
Rated insulation voltage (Ui) 600V – 800V (max 750V for high current frames)
Rated impulse withstand voltage (Uimp) 8kV
Ultimate breaking capacity (Icu) 36kA (F type) / 50kA (N type) / 50kA (1600N)
Service breaking capacity (Ics) 100% Icu for F/N (37.5kA for 1600N)
Number of poles 1P, 3P, 4P (depending on frame size)
Zero flying arc Yes – safe for panel installation
Modular design Full modular accessories and interchangeable parts

Detailed Model Ratings & Breaking Capacities

Type Poles Rated current (A) Operating voltage (V) Insulation voltage Ui (V) Uimp (kV) Icu (kA) Ics (kA)
HM2 100F 1,3,4 16,25,32,40,50,63,80,100 400/690* 600 8 36 36
600 50 50
HM2 160F 1,3,4 125,160 800 36 36
800 50 50
HM2 250F 1,3,4 200,225,250 800 36 36
800 50 50
HM2 400F 3,4 300,350,400 800 36 36
800 50 50
HM2 630F 3,4 500,630 800 36 36
800 50 50
HM2 1600N 3,4 800,1000,1250,1600 440 750 8 50 37.5

* HM2 1600N operates at 440V; other frames support 690V working voltage per IEC.

Protection Features & Design Highlights

  • Zero flying arc – safe for personnel and reduces panel clearance requirements.
  • Compact modular structure – reduces installation space, and easy to assemble accessories.
  • Current-limiting technology – minimizes let‑through energy during short circuits.
  • Complete protection – overload (thermal), short‑circuit (magnetic), undervoltage (optional).
  • High breaking capacity – up to 50kA at 400/690V, suitable for industrial main distribution.

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