OVERVIEW

Official designation: Allen-Bradley 1492-CB1G150 (Bulletin 1492-CB, Miniature Circuit Breaker/Supplementary Protector)

Role/Application: Single-pole thermal-magnetic overcurrent protector designed to safeguard circuits from overloads and short circuits, specifically featuring a G 150-Trip characteristic for slightly inductive loads.

KEY SPECS SUMMARY

Power: 277 V AC (1 ph), 65 V DC

Interfaces / Ports: Screw terminals, 1 pole + neutral

Indicators: N/A

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: DIN Rail mount, UL 1077/CSA 235

Limit: 15 A rated current, 3 HP max (Series C)

Lifecycle: Discontinued by manufacturer

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the specific instantaneous magnetic tripping characteristics of the G 150-Trip unit?

A: The G-trip characteristic is set to trip between 6 and 10 times the rated current (In).

Wiring & Installation:

Q: What is the maximum wire gauge accepted by the line and load side screw terminals?

A: Both line and load terminals accept copper wire ranging from #16 to #4 AWG.

Troubleshooting & Compatibility:

Q: Is this circuit breaker considered a manual motor controller, and what is its maximum horsepower rating?

A: Yes, it is a manual motor controller with a maximum horsepower rating of 3 HP (Series C).

Replacement & Upgrades:

Q: What is the status of the 1492-CB series, and is there a direct replacement line available?

A: The 1492-CB series is discontinued, and replacement is generally found in the 1492-SPM series.