A-B 1492-CB1 Bulletin 1492 Circuit Breaker

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                                                            • ALLEN-BRADLEY 1492-CB1 Bulletin 1492 Single-Pole Circuit Breaker

                                                              Product Overview

                                                              The Allen-Bradley 1492-CB1 is a Bulletin 1492 thermal-magnetic miniature circuit breaker (supplementary protector) designed to protect industrial control circuits against overloads and short circuits.

                                                              It features a compact DIN-rail mounting design and is suitable for protecting control components such as PLCs, relays, contactors, transformers, and power supplies.

                                                               

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                                                              Technical Specifications

                                                              Parameter	Specification
                                                              Brand	Allen-Bradley
                                                              Series	Bulletin 1492-CB
                                                              Model	1492-CB1
                                                              Product Type	Miniature Circuit Breaker
                                                              Protection Type	Thermal-Magnetic
                                                              Number of Poles	1 Pole
                                                              Current Range	0.5–50 A, depending on suffix
                                                              Maximum AC Voltage	480V AC
                                                              Maximum DC Voltage	65V DC standard version
                                                              DC Version	Up to 120V DC per pole
                                                              Mounting	DIN Rail
                                                              Termination	Screw Terminals
                                                              Wire Size	16–6 AWG
                                                              Operating Temperature	-20 to +60°C
                                                              Country of Origin	Switzerland (varies by production version)

                                                               

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                                                              Key Features

                                                              • Thermal-magnetic overcurrent protection.

                                                              • Protects against overloads and short circuits.

                                                              • Compact single-pole design.

                                                              • DIN-rail mounting for easy installation.

                                                              • Multiple current ratings and trip characteristics available.

                                                              • Optional auxiliary contacts and signal contact accessories.

                                                              Applications

                                                              • Industrial control panels.

                                                              • PLC and I/O circuit protection.

                                                              • Relay and contactor protection.

                                                              • Transformer and power supply protection.

                                                              • Factory automation systems.

                                                              Important Notes

                                                               

                                                              • The base model 1492-CB1 identifies the one-pole breaker family, not a complete current rating.

                                                              • The full catalog number suffix determines the rated current and trip characteristic. Verify the complete nameplate before ordering.

                                                              • Do not confuse 1492-CB1 with 1492-CB2 (two-pole) or 1492-CB3 (three-pole).

                                                              • Confirm voltage, current rating, and trip curve before replacement.

                                                              • This is a supplementary protector; verify whether the application requires a branch-circuit-rated circuit breaker.

The structure and details of the product：

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