GW1 630A to 6300A Air Circuit Breakers ACB

Product Name:​ Intelligent Universal Air Circuit Breaker (ACB)

Product Series:​ GW1 Series

Product Positioning:​ A high-end, intelligent, high-current​ power distribution protection device designed for industrial grids requiring high reliability and automated control.

Primary Function:​ To distribute electrical energy and protect circuits and equipment from hazards such as overload, undervoltage, short-circuit, and single-phase ground faults.

Core Features:​ Provides selective protection​ to enhance power supply reliability; comes with a standard communication interface​ supporting remote monitoring and integration into automation systems.

Rating

Rated Operational Voltage (Ue):​ 400V, 690V​ AC

Rated Current (In):​ 630A ~ 6300A​ (Extremely wide range)

Frame Size Current (Inm):​ 2000A, 3200A, 4000A, 6300A

Ultimate Breaking Capacity (Icu):​ Exceptionally high, reaching 80kA to 120kA​ at 400V and 50kA to 85kA​ at 690V, providing top-tier short-circuit protection.

Intelligent Controller (Protection Core)

Three Optional Types:

Type H (Communication Type):​ The most comprehensive functionality, includes all protection, measurement, and communication capabilities​ (supports protocols like PROFIBUS-DP, MODBUS).

Type M (Standard Intelligent Type):​ Includes protection, measurement, display, and alarm functions, but lacks a communication interface.

Type L (Economy Type):​ Basic protection functions set via DIP switches, without digital display.

Protection Functions:​ Includes four-stage protection: Long-time delay (overload), Short-time delay, Instantaneous, and Ground fault. Parameters can be precisely set.

Additional Features:​ Current/voltage display, load monitoring, thermal memory, fault recording, self-test, and test functions.

Mounting Methods:

Fixed Type:​ Simple and economical.

Drawout Type:​ Facilitates easy maintenance. Features three distinct working positions: "Connected," "Test," and "Disconnected,"​ with safety interlocking.

Number of Poles:​ 3-pole​ and 4-pole.

Operation Methods:

Manual Operation:​ Used for inspection and maintenance.

Electrical Operation:​ Remote energy storage and closing via an electrical operating mechanism.

Comprehensive Accessories (Modular Design):

Shunt Release:​ Used for remote electrical tripping (opening).

Undervoltage Release:​ Available in both instantaneous and delayed action types.

Closing Electromagnet:​ Works with the electrical mechanism for rapid closing.

Auxiliary Contacts:​ Used for status signaling.

Mechanical Interlocks:​ Prevent the erroneous parallel operation of multiple power sources.

Key Lock:​ Allows the circuit breaker to be locked in the OPEN position.