40440-300-51 - Allen Bradley Contact Kit
- 1 Pole
Purchase Options: After-Market - New in Box
40440-300-51 - Allen Bradley Contact Kit Description
40440-300-51 - Allen Bradley Contact Kit
Restore optimal performance to your motor control systems with the Allen-Bradley 40440-300-51 contact kit—an OEM-grade solution for NEMA Size 4 starters and contactors in Allen-Bradley Bulletin 500, 505, 509, and 520 systems. Designed by Rockwell Automation, this single-pole kit includes all essential replacement components: movable contact, front and rear stationary contacts, spring, and mounting hardware. Perfect for maintaining 3-phase motor control systems rated up to 135 A at 600 VAC, this kit delivers reliable, high-performance switching and reduces costly downtime.
Key Features and Benefits
- OEM-Grade Replacement: Exact fit for NEMA Size 4 contactors in Allen-Bradley Bulletins 500, 505, 509, and 520
- High Current Rating: Supports up to 135 A continuous motor load at 600 VAC (Size 4 equivalent)
- Complete Kit: Includes movable contact, front and rear stationary contacts, spring, and all necessary mounting hardware
- Fast Maintenance: Designed for easy field replacement, minimizing system downtime and labor costs
- Corrosion-Resistant Construction: Long-lasting durability in industrial motor control environments
Technical Specifications
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Kit Type: Single-pole contact replacement kit
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Contactor Compatibility: Bulletin 500, 505, 509, 520 (NEMA Size 4)
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Rated Current: Approx. 135 A (Size 4 contactor rating)
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System Voltage: Up to 600 VAC
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Included Parts: Movable contact, front stationary contact, rear stationary contact, spring, screws, and hardware
Material Compliance and Certifications
- Standards: Conforms to NEMA ICS‑2 motor control standards
- Build Quality: Manufactured or remanufactured to Allen-Bradley specifications for fit, form, and function
- Distribution: Available through Rockwell Automation and trusted aftermarket suppliers
Suitability and Applications
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Ideal For: Service technicians, OEMs, and industrial maintenance teams
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Application Environments: HVAC systems, water treatment, conveyors, pumps, and compressors
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Benefits: Cost-effective way to extend contactor life without replacing full assemblies
Count on the Allen-Bradley 40440-300-51 Contact Kit to restore high-current motor starters with dependable, OEM-verified performance.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Width:1.92
- Height:2.04
- Depth:2.87
- Poles:1
- Type:500; 509
- Sub-Category:Contact Kit
- Additional Notes:This NEW contact kit we offer is a professionally designed after-market, MADE IN U.S.A., replacement contact kit, specifically manufactured to replace the OEM Kit.
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).