
MA3450 450 Amp Circuit Breaker


- 450 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
MA3450 450 Amp Circuit Breaker Description
MA3450 - 450 Amp Circuit Breaker
Meet the MA3450 450 Amp Thermal‑Magnetic Circuit Breaker—your go‑to choice when you need reliable, high-capacity protection in demanding industrial or commercial settings. Engineered to handle heavy loads without missing a beat, this 3‑pole breaker delivers dependable performance and safety with every operation. Its thermal‑magnetic trip mechanism guards against both overloads and short circuits, helping keep your system running smoothly day in and day out.
Key Features and Benefits
- Thermal‑Magnetic Trip System: Offers dual protection from both overload and short-circuit scenarios—keeping downtime minimal and your equipment safeguarded.
- Interchangeable Trip Unit: Customize settings to match your exact application, granting you flexibility as needs evolve.
- Durable MA‑Frame Housing: Designed to endure the rigors of industrial duty and maintain peak performance over time—reliably tough without being over-engineered.
Technical Specifications
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Poles: 3
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Current Rating: 450 A—great for heavy-duty service and maintenance.
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Interrupting Capacity (A.I.C.):
- 22 kA at 600 VAC
- 30 kA at 480 VAC
- 42 kA at 240 VAC
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Frame Type: MA
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Dimensions:
- Width: 8.25 inches
- Length: 16.00 inches
- Depth: 4.00 inches
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Shipping Weight: Approx. 50 lb
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Ambient Temperature Rating: 40 °C—built to stay cool under pressure.
Material Compliance and Certifications
- Crafted to meet industry benchmarks: The MA3450 is built following rigorous quality standards so you can count on consistent performance and safety. It comes with all necessary electrical compliance certifications, offering assurance that it’s up to the task—even in critical operations.
Suitability
- This breaker shines when used for maintenance and service in existing industrial or commercial electrical setups. If you’re keeping a facility running and need a high‑capacity, easy-to-integrate solution that’s dependable, the MA3450 has your back. It slips into established systems seamlessly and delivers the kind of reliable protection that keeps operations humming.
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:8.25
- Height:16.0
- Depth:4.0
- Poles:3
- Amperes:450
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:MA
- Approx Dimensions:8.25"W x 16.00"L x 4.00"D
- Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Interchangeable Trip Unit. This item includes load-side terminals.
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).