Moulded Case Circuit Breaker (MCCB) GM2 Series

GM2 Series Moulded Case Circuit Breakers​ as a comprehensive, professional, and highly reliable​ industrial-grade product solution. Its key features include a wide current rating range, high breaking capacity, modular accessory system, and versatile mounting options, meeting the needs of various industrial applications from standard to demanding. 

Current Rating Range:​ A complete series from 100A​ to 1600A, including specific models:

GM2-100, GM2-160, GM2-250 (thermal magnetic type)

GM2-400, GM2-630 (thermal magnetic & electronic trip)

GM2-800, GM2-1000, GM2-1250, GM2-1600 (electronic trip types)

Compliance Standards:​ IEC 60947-2

Ratings:

Rated Operational Voltage (Ue):​ Up to 690V AC​ (for models 800A and above).

Rated Current (In):​ Covers the range from 100A to 1600A.

Breaking Capacity:

Type N (Standard):​ 35kA - 50kA (at 400V).

Type H (High Breaking Capacity):​ 80kA (at 400V), providing a higher level of short-circuit protection.

Trip Unit Types (Protection Core):

Thermal-Magnetic Trip Unit:​ Primarily used for models GM2-100 to GM2-630, providing overload (Long-time delay) and short-circuit (Instantaneous) protection.

Electronic Trip Unit (STK Series):​ Used for models GM2-400 to GM2-1600. Offers more precise and adjustable protection functions, typically including Long-time, Short-time, and Instantaneous protection (three-stage protection).

Mechanical & Electrical Endurance:

Mechanical endurance up to 20,000 to 50,000​ operations.

Electrical endurance varies with current and voltage rating, reaching 2,000 to 10,000​ operations under rated conditions.

Number of Poles:​ Mainly available in 3-pole​ and 4-pole​ models.

Operation Methods:

Manual Operation:​ Available via toggle switch​ and rotary handle​ (direct or extended).

Motorized Operation:​ Optional motor mechanism for remote control.

Mounting Methods:

Fixed Mounting:​ Front or rear connection.

Plug-in/Withdrawable Mounting:​ Facilitates easy maintenance and replacement, offering "Connected," "Test," and "Disconnected" positions.

Comprehensive Accessories (Modular Design):

Auxiliary Contacts:​ For indicating circuit breaker status (e.g., ON, OFF, tripped).

Undervoltage Release (MN) & Shunt Release (MX):​ For remote tripping.

Alarm Contacts:​ Specifically indicate tripping due to faults like overload or short-circuit.

Rotary Handles:​ Standard and extended types for operation from the panel door.