General Electric | TEYH3125B | Circuit Breaker | 125A | 3-Pole | 277V | 35kA | Bolt-On

Meet the General Electric TEYH3125B Circuit Breaker—a purpose-built protective device for 3-phase 277V systems. Engineered for maintenance, retrofit, and replacement projects that demand exact specifications, this 125A, 3-pole breaker delivers reliable overcurrent protection with a bolt-on mounting design for a robust, secure fit in compatible panels. With a 35kA interrupting capacity, it’s equipped to safely interrupt fault currents typical of commercial and light industrial environments, helping minimize downtime and equipment damage during faults.

Key specifications

• Amperage: 125 A
• Poles: 3-Pole
• Voltage: 277V
• Interrupting Capacity: 35 kA
• Mounting: Bolt-On
• Part Number Reference: TEYH3125B

Why this TEYH3125B breaker stands out

• Exact-match replacement: Designed for installations that require a precise 125A, 3-pole, 277V configuration, ensuring seamless compatibility with existing GE panels and similar systems that accept bolt-on breakers.
• Secure bolt-on mounting: The bolt-on design provides a durable, vibration-resistant connection that maintains protection integrity in demanding environments.
• Strong fault protection: 35kA interrupting capacity gives you solid protection against high fault currents, reducing equipment risk and improving system reliability.
• Clear reference for compatibility: When sourcing replacements or retrofits, the TEYH3125B part number is the most reliable indicator of fit and ratings.

Ideal use cases

• Maintenance outages in commercial buildings where 277V three-phase circuits are present
• Retrofits or panel upgrades that require a 125A, 3-pole, 277V bolt-on breaker with high interrupting capacity
• Replacement of aging or failing breakers in GE-compatible electrical distribution systems

Practical guidance for buyers

Before ordering, verify that your panel or switchgear accepts bolt-on breakers and that the ratings align with your system requirements. The TEYH3125B is the best reference for compatibility, so cross-check the part number when sourcing spares. Follow standard electrical installation practices and local codes during replacement to ensure a safe, code-compliant setup.

With its precise specs, secure bolt-on mounting, and substantial interrupting capacity, the GE TEYH3125B circuit breaker is a dependable choice for protecting 277V three-phase circuits while simplifying maintenance and retrofit workflows.