GE AMCB3GM
Product Name: GE Spectra Series AMCB3GM Bolt-On Circuit Breaker Mounting Kit / Single Branch Mounting Hardware
Overview: The AMCB3GM is a genuine General Electric Spectra Series mounting hardware kit designed for installing single branch “G-frame” Spectra circuit breakers into APN-B type bolt-on panelboard interiors. It is compatible with breaker types SGDA, SGHA, SGLA, and SGPA, and is used by panel builders and maintenance crews to mount high-capacity Spectra breakers.
Detailed content
Technical Specifications:
- Manufacturer: General Electric
- Catalog No. / MPN: AMCB3GM
- Configuration: Single Branch, Single Mounting
- Compatible Breaker Series: Spectra Breaker Types SGDA, SGHA, SGLA, SGPA
- Compatible Panel Type: APN-B
- Metal Type: Copper
- Voltage Rating: 600 V
- Amperage Rating: 250 A minimum, 600 A maximum
- Vertical Space Required: 5.50 inches (4X)
- Replacement Hardware Kit: AHKBG1
Key Features:
- Delivers 600 V / 600 A class mounting capacity for heavy Spectra breakers
- Copper conductive parts for reliable current carrying
- Complete kit format with brackets, antiturn clips, straps, spacers, bolts, nuts, and washers
- Bolt-on style installation into Spectra APN-B interiors
Structural Composition: The kit includes a circuit breaker mounting bracket (252B3576P1), G-frame single straps (252B3618G13/G14/G15), antiturn clips (252B3613P1), spacers (252B3657P1/P2), hex-head bolts, carriage bolts, thread-forming screws, conical spring washers, flat washers, nuts, and a terminal cover (10083041P1).
Application Scenarios: Power panelboards and switchboards in commercial and light industrial power distribution; main and single-branch G-frame Spectra breaker installations.
Installation Requirements:
- Turn OFF power ahead of the panelboard or switchboard before working inside the equipment
- Equipment must be installed and maintained by properly trained and qualified personnel only
- Confirm kit contents against the parts list before starting
- Install into Spectra APN-B bolt-on-style interiors only
Usage Precautions: Ensure the vertical space of 5.50 inches (4X) is available per kit. Verify the correct breaker type (SGDA/SGHA/SGLA/SGPA) before installation. Follow the supplied DEH060 instruction manual strictly to prevent electrical shock or injury.












