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Allen-Bradley 1492-SPM3C320 Supplemental Circuit Breaker for DIN rail mounting

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Allen-Bradley 1492-SPM3C320

by Allen-Bradley

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OverviewElevate the safety and dependability of your electrical control panels with the Allen-Bradley 1492-SPM3C320 Supplemental Circuit Breaker. Engineered for exceptional overcurrent protection, this 3-pole, 32A, C-curve circuit breaker is essential for shielding sensitive equipment from detrimental overloads and short circuits. Its robust construction and adaptable application render it an indispensable component in a wide array of industrial and commercial environments.As a distinguished member of the acclaimed Bulletin 1492-SPM series, the 1492-SPM3C320 is globally recognized for its consistent performance and superior longevity. Designed for effortless integration into DIN rail systems, this circuit breaker offers both rapid installation and dependable, long-term safeguarding, ensuring uninterrupted operation and peace of mind. Experience the unparalleled quality and advanced engineering that only Allen-Bradley can deliver.Key Features Optimal Overcurrent Protection: Provides dependable safeguarding for equipment against overloads and destructive short circuits. 3-Pole Configuration: Specifically engineered for three-phase systems, ensuring comprehensive protection across all lines. 32 Amps Rated Current: Perfectly suited for applications demanding precise 32A current handling. C-Curve Tripping Characteristic: Ideal for systems with moderate inrush currents, preventing unnecessary tripping. DIN Rail Mounting: Facilitates quick, secure, and tool-free installation, minimizing downtime and labor expenses. Compact and Space-Saving Design: Optimally engineered for efficiency, fitting seamlessly into constrained control panels. Broad Voltage Compatibility: Supports a wide range of electrical systems with 480Y/277V AC or 250V DC ratings. Technical Specifications Product Series: Allen-Bradley Bulletin 1492-SPM Series Poles: 3-Pole Rated Current: 32 Amps Tripping Curve: C-Curve Rated Voltage: 480Y/277V AC or 250V DC Breaking Capacity: 10 kA at 480Y/277V AC Frequency: 50/60 Hz Mounting Type: DIN Rail Terminal Type: Screw Terminals Operating Temperature: -25°C to +60°C Certifications: UL 1077, IEC 60947-2, CSA Compliant Neutral Requirement: No Neutral Required Applications Industrial Control Panels: Essential for supplemental protection of complex control circuits and automation systems. Commercial and Industrial Lighting: Guarantees the safety and extended operational life of lighting infrastructure. Equipment Protection: Crucial for protecting valuable electrical devices and machinery from current fluctuations. General Purpose Low-Voltage Circuits: A versatile solution for a multitude of low-voltage electrical applications. HVAC Systems: Ensures dependable operation and protection for heating, ventilation, and air conditioning units. Power Distribution Units: Enhances the safety and integrity of power distribution within various configurations. Why Choose This Model? Allen-Bradley's Unmatched Quality: Benefit from the reliability and durability synonymous with the globally recognized Allen-Bradley brand. Superior Overcurrent Protection: Experience heightened safety with a circuit breaker meticulously designed for precise overload and short-circuit prevention. Optimized for Modern Systems: Its C-curve characteristic and 3-pole design are perfectly suited for contemporary industrial and commercial electrical demands. Effortless Integration: The DIN rail mounting ensures a swift, user-friendly installation process, reducing setup time and complexity. Space-Efficient Design: Its compact footprint allows for maximum utilization of panel space, a critical advantage in crowded enclosures. Long-Term Investment: Built to withstand demanding environments, promising extended operational life and minimal maintenance. Order NowSecure the integrity and performance of your electrical systems with the Allen-Bradley 1492-SPM3C320 Supplemental Circuit Breaker. This high-performance, reliable protection solution is currently available for immediate dispatch. Do not compromise on safety or quality – invest in the best for your operations.FAQWhat is the primary function of the Allen-Bradley 1492-SPM3C320?The primary function of this circuit breaker is to provide supplemental overcurrent protection for electrical control panels, safeguarding equipment from overloads and short circuits.What type of systems is this circuit breaker designed for?It is specifically designed for three-phase systems, with a 3-pole configuration to provide comprehensive protection across all lines.What is the significance of the C-curve tripping characteristic?The C-curve tripping characteristic is ideal for systems with moderate inrush currents, preventing nuisance tripping while still offering effective protection.Is installation of the 1492-SPM3C320 complicated?No, it features DIN rail mounting, which facilitates rapid, secure, and tool-free installation, minimizing downtime and labor costs.What voltage ratings does this circuit breaker support?It supports a broad range of electrical systems with 480Y/277V AC or 250V DC ratings.

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PRODUCT DETAILS

Allen-Bradley 1492-SPM3C320

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Product Series: Allen-Bradley Bulletin 1492-SPM Series
  • Poles: 3-Pole
  • Rated Current: 32 Amps
  • Tripping Curve: C-Curve
  • Rated Voltage: 480Y/277V AC or 250V DC
  • Breaking Capacity: 10 kA at 480Y/277V AC
  • Frequency: 50/60 Hz
  • Mounting Type: DIN Rail
  • Terminal Type: Screw Terminals
  • Operating Temperature: -25°C to +60°C
  • Certifications: UL 1077, IEC 60947-2, CSA Compliant
  • Neutral Requirement: No Neutral Required

Applications

  • Industrial Control Panels: Essential for supplemental protection of complex control circuits and automation systems.
  • Commercial and Industrial Lighting: Guarantees the safety and extended operational life of lighting infrastructure.
  • Equipment Protection: Crucial for protecting valuable electrical devices and machinery from current fluctuations.
  • General Purpose Low-Voltage Circuits: A versatile solution for a multitude of low-voltage electrical applications.
  • HVAC Systems: Ensures dependable operation and protection for heating, ventilation, and air conditioning units.
  • Power Distribution Units: Enhances the safety and integrity of power distribution within various configurations.

Why Choose the 1492-SPM3C320?

  • Allen-Bradley's Unmatched Quality: Benefit from the reliability and durability synonymous with the globally recognized Allen-Bradley brand.
  • Superior Overcurrent Protection: Experience heightened safety with a circuit breaker meticulously designed for precise overload and short-circuit prevention.
  • Optimized for Modern Systems: Its C-curve characteristic and 3-pole design are perfectly suited for contemporary industrial and commercial electrical demands.
  • Effortless Integration: The DIN rail mounting ensures a swift, user-friendly installation process, reducing setup time and complexity.
  • Space-Efficient Design: Its compact footprint allows for maximum utilization of panel space, a critical advantage in crowded enclosures.
  • Long-Term Investment: Built to withstand demanding environments, promising extended operational life and minimal maintenance.

Availability & Shipping

  • In stock: 1492-SPM3C320 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1492-SPM3C320 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The primary function of this circuit breaker is to provide supplemental overcurrent protection for electrical control panels, safeguarding equipment from overloads and short circuits.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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