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Allen Bradley 1492 Wiring System 1492-CB1G300

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1492-CB1G300

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Model 1492-CB1G300 is a miniature circuit breaker developed by Allen Bradley within the 1492 Wiring System. It is rated for a maximum voltage of 277 volts AC and can handle continuous currents up to 30 amperes, making it suitable for demanding electrical applications.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1492-CB1G300

ManufacturerAllen Bradley
Product TypeMiniature Circuit Breaker
Product Line1492 Wiring System
Part Number1492-CB1G300
Weight0.25 lbs (0.11 kg)
GTIN10662468191767
Rated Frequency50 to 60 Hertz
Trip CurveTrip curve G
Mounting Method35 millimeters DIN rail mount
Pole ConfigurationSingle pole (1 pole)
Maximum Horsepower5 horsepower at 277 Volts AC
Continuous Current Rating30 Amperes
Trip Unit TypeMagnetic trip unit
Rated Voltage277 Volts AC
Shock Resistance25 G for 13 milliseconds
Dielectric Strength1,960 Volts AC
Short Circuit Capacity5 kiloamperes
Electrical EnduranceUp to 20,000 operations
Housing MaterialMelamine-phenolic
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The Allen Bradley part number 1492-CB1G300 is classified as a miniature circuit breaker. This unit provides critical protection for electrical circuits by interrupting excess current flow. It operates effectively under a frequency range of 50 to 60 Hertz.

This circuit breaker is designed as a single-pole unit, allowing it to manage up to 30 amperes of continuous current. When used within its rated parameters, it can handle a maximum horsepower of 5 at an input of 277 volts AC. The trip unit is of the magnetic type, ensuring rapid response to overload conditions. It features trip curve G, which provides a defined reaction to fault conditions.

The 1492-CB1G300 also ensures high durability with a dielectric strength of 1,960 volts AC. Its robustness is further highlighted by a short circuit capacity rated at 5 kiloamperes. The device also withstands shock resistance of 25 G for a duration of 13 milliseconds, indicating its suitability for environments with dynamic conditions. The circuit breaker is capable of enduring up to 20,000 operational cycles, making it ideal for consistent and reliable use.

For mounting, it employs a 35 millimeter DIN rail method, simplifying installation in various settings. The housing is constructed from melamine-phenolic material, providing additional resistance against environmental factors and enhancing its longevity. This combination of features makes the 1492-CB1G300 an essential component in circuit protection.