General Electric | SB425R | Fusible Bus Plug | 400A | 4-Pole | 240V

General Electric SB425R Fusible Bus Plug is a purpose-built protective plug designed for high-current electrical distribution systems. Rated at 400A, with four poles, and operating at 240V, this fusible bus plug is the reliable choice for maintenance, retrofit, and replacement projects where precise compatibility matters.

As part of GE's fusible plug family, the SB425R delivers a controlled path for overcurrent protection, enabling safe disengagement and quick restoration of service when fuse elements operate. Its four-pole design ensures robust, balanced connections across the bus bars, helping to maintain system stability during switching operations.

Key specifications

• Amperage: 400 A
• Poles: 4-Pole
• Voltage: 240 V
• Part number: SB425R
• Applications: Maintenance, retrofit, and replacement in compatible GE switchgear and bus assemblies

Why choose the SB425R? This is not a generic bus plug. It’s a product engineered to align with GE equipment specs, ensuring a precise fit and reliable performance in demanding environments. The four-pole configuration supports high-current distribution with consistent contact integrity, reducing the risk of uneven loading and potential hot spots during operation.

Who it's for

• Electrical engineers and technicians performing maintenance or upgrades on GE switchgear and bus assemblies
• Facilities managers overseeing critical distribution systems that require dependable replacement parts
• Retrofit projects where matching 400A, 240V specifications are essential to maintain safety and compliance

Important compatibility note: Confirm fit and ratings before ordering. The SB425R part number is the best reference for compatibility, ensuring you select the exact plug for your GE equipment and avoid mismatches.