MAXGE SGM3S 400A Moulded Case Circuit Breaker (MCCB)

The MAXGE SGM6-400H Moulded Case Circuit Breaker (MCCB) is a fixed-type low-voltage circuit protection device designed for electrical power distribution systems and industrial applications. It is part of the MAXGE SGM6 series, which provides protection for circuits and electrical equipment against faults such as overload and short circuit. The series is also designed for electrical distribution applications and, under suitable conditions, infrequent motor starting and protection.

The SGM6-400H belongs to the 400A frame size of the SGM6 series. Depending on the exact rated-current version, the 400 frame is available in ratings up to 400A, and the series is available in 3-pole and 4-pole configurations. It operates at rated operational voltages of 380V, 400V, or 415V AC and complies with the IEC 60947-2 standard for low-voltage circuit breakers.

The H designation identifies the high breaking-capacity version within the SGM6-400 range. Manufacturer catalog information lists the 400A-frame H version with a rated ultimate short-circuit breaking capacity of up to 100kA (Icu), while the rated service short-circuit breaking capacity can reach 75kA (Ics), depending on the exact model configuration and specifications.

The breaker uses a robust moulded insulating enclosure designed for industrial electrical environments. MAXGE highlights features including an anti-touch transparent cover, ergonomic operating handle, tripping button, flame-resistant insulated enclosure, and heat-dissipation structure. The series also supports accessories such as auxiliary contacts, alarm contacts, shunt trips, under-voltage releases, and motor operating mechanisms, depending on the configuration.

The MAXGE SGM6-400H MCCB is suitable for use in industrial distribution panels, commercial electrical systems, machinery, large-capacity circuits, and power distribution equipment where reliable circuit protection and high short-circuit interruption capability are required.

Note: The exact rated current, number of poles, trip characteristics, and accessories should be verified according to the complete part number and model configuration before installation.

Features

• Fixed-type Moulded Case Circuit Breaker (MCCB)

• Part of the MAXGE SGM6 series

• 400A frame size

• Available in 3-pole and 4-pole configurations

• Protection against overload and short-circuit faults

• High breaking-capacity H version

• Rated operational voltage: 380/400/415V AC

• IEC 60947-2 compliant

• Anti-touch transparent cover

• Flame-resistant insulated enclosure

• Ergonomic operating handle

• Manual tripping button

• Supports optional electrical accessories

• Suitable for industrial and power distribution applications

Specifications

• Brand: MAXGE

• Model: SGM6-400H

• Product Type: Moulded Case Circuit Breaker (MCCB)

• Frame Size: 400A

• Rated Current Options: Up to 400A, depending on configuration

• Number of Poles: 3P / 4P

• Rated Operational Voltage: 380/400/415V AC

• Rated Insulation Voltage (Ui): 1000V

• Rated Impulse Withstand Voltage (Uimp): 8kV

• Standard: IEC 60947-2

• Breaking Capacity Class: H

• Maximum Icu: Up to 100kA

• Maximum Ics: Up to 75kA

• Magnetic Tripping: Series-dependent, typically specified relative to rated current

• Mounting Type: Fixed

• Reference Temperature: 40°C / 50°C / 55°C depending on configuration

Applications

• Industrial power distribution panels

• Commercial electrical systems

• Main and sub-distribution boards

• Industrial machinery

• Motor protection systems

• Manufacturing facilities

• Large-capacity electrical circuits

• Power distribution equipment

• Electrical control systems

• Industrial infrastructure