HEF437040 - 40Amp Circuit Breaker
- 40 Amp
- 18k @ 600VAC; 25k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options:
HEF437040 - 40Amp Circuit Breaker Description
HEF437040 - 40Amp Circuit Breaker
The HEF437040 40A circuit breaker is a practical choice for protecting three-phase electrical systems in commercial and industrial settings. Built on the HEF frame, this 3-pole breaker is designed to handle everyday power distribution needs while helping prevent damage caused by overloads and short circuits. With interrupting ratings up to 65kA at 240VAC, it’s suitable for systems where higher available fault current may be present. For maintenance teams and electrical contractors, this breaker provides straightforward, dependable protection that supports safe and efficient operation.
Key Features and Benefits
- Rated for 40 amps of continuous current
- 3-pole configuration for three-phase applications
- Interrupting capacity up to 65kA at 240VAC
- Designed to protect against overloads and short circuits
- HEF frame construction for lasting performance
Technical Specifications
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Manufacturer Part Number: HEF437040
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Amperage Rating: 40A
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Poles: 3
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Interrupting Capacity:
- 18kA @ 600VAC
- 25kA @ 480VAC
- 65kA @ 240VAC
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Frame Type: HEF
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Shipping Weight: Approximately 7.50 lbs
Material Compliance and Certifications
- UL Listed
- CSA Certified
- Manufactured to meet established electrical safety standards
Where It Works Best
- The HEF437040 3-pole 40 amp breaker works well in commercial buildings, manufacturing facilities, and general industrial power distribution panels. It’s often used for equipment protection, panel upgrades, or as a direct replacement in existing systems where matching specifications are required.
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. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Specifications
- Poles:3
- Amperes:40
- A.I.C. Rating & Volts:18k @ 600VAC; 25k @ 480VAC; 65k @ 240VAC
- Type:HEF
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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Same Day Shipping
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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).