Allen-Bradley 1492-CB2G250 25A 2-Pole 277 V Circuit Breaker

The Allen-Bradley 1492-CB2G250 is a rugged, reliable 25-amp, two-pole circuit breaker designed for 277 V AC service. Built for commercial and light-industrial panels, this unit delivers precise overcurrent protection for critical circuits while keeping your electrical distribution organized and safer.

Key specifications

• Current rating: 25 A
• Poles: 2
• Voltage rating: 277 V
• Part number: 1492-CB2G250
• Brand lineage: Allen-Bradley 1492 series

Why this matters

• Enhanced safety with dual-pole protection: The 2-pole design ensures both hot lines trip together, reducing risk of backfeed and keeping multi-wire branch circuits safely isolated.
• Exact fit for 277 V systems: Optimized for commercial lighting and equipment distribution where 277 V is standard, delivering reliable protection without compromise.
• Precise 25 A protection: Calibrated to shield wiring and devices from overloads while allowing normal operation of connected loads, helping prevent nuisance trips in everyday use.
• Trusted reliability: Part of the Allen-Bradley lineage, offering predictable trip characteristics and long-term performance in demanding environments.

Ideal use cases

• 277 V commercial lighting circuits and receptacle runs in office buildings, malls, and industrial facilities
• Small to moderate-load equipment feeders in control panels and electrical distribution centers
• Replacement or upgrade in panels that support the 1492 family breakers, ensuring consistent performance with existing hardware

Installation and compatibility notes

Designed for use in compatible Allen-Bradley panels that accept 1492-series circuit breakers. Before installation, confirm that the panel is rated for 277 V operation and that the 1492-CB2G250 is the correct replacement part for your circuit layout. Follow standard electrical safety practices during replacement or installation.

Practical tips for best results

• Keep a spare 1492-CB2G250 on hand for quick replacements in ongoing maintenance schedules.
• Label circuits clearly to reflect the protected load, aiding future troubleshooting and panel inspections.
• When planning upgrades, map out multi-wire branch circuits to leverage the dual-pole protection benefits fully.
• Store documentation for the panel and breaker family to ensure ongoing compatibility with future service updates.