EH1B040 - 40Amp Circuit Breaker
- 40 Amp
- 14k @ 277VAC
- 1 Pole
Purchase Options: Refurbished
EH1B040 - 40Amp Circuit Breaker Description
EH1B040 - 40 Amp Circuit Breaker
If you’re maintaining an existing electrical system, you know how important it is to find a breaker that fits right the first time. The EH1B040 molded case circuit breaker is built for exactly that purpose—delivering the correct form, fit, and function for EH1 frame applications without the hassle of modifications. Rated at 40 amps with a 14kA interrupting capacity at 277VAC, this single-pole breaker provides steady, reliable protection for branch circuits in commercial and light industrial environments. It’s designed to handle everyday electrical demands at up to 40°C, making it a practical, no-nonsense solution for keeping your system operating the way it was intended.
Key Features and Benefits
- Designed for Compatibility – Fits EH1 frame systems, helping simplify replacements in existing setups
- 40 Amp Rating – Supports consistent protection for standard branch circuits
- 14kA @ 277VAC Interrupting Capacity – Handles fault conditions within its rating to help protect equipment
- Single-Pole Configuration – Ideal for controlling one energized conductor in a circuit
- Built to Last – Solid construction made for long-term use in typical operating conditions
- Thermal-Magnetic Protection – Responds to both overloads and short circuits
Technical Specifications
- Part Number: EH1B040
- Frame Type: EH1
- Poles: 1
- Amperage: 40A
- Interrupting Capacity: 14kA @ 277VAC
- Operating Temperature Rating: 40°C
- Breaker Type: Molded Case Circuit Breaker
- Approximate Shipping Weight: 1.5 lbs
- Dimensions (Height): 6.0 inches
Material Compliance and Certifications
- Manufactured in accordance with industry standards for molded case circuit breakers
- Designed for use in systems that follow established electrical safety codes, including NEC requirements
- Suitable for properly rated installations where code compliance is essential
Where It Works Best
- The EH1B040 is a go-to option for maintaining panelboards and distribution systems already designed for EH1 frame breakers. You’ll typically find it used in commercial buildings, small industrial facilities, and other environments where 40-amp circuit protection is required. It’s especially useful when you need a straightforward replacement that keeps your system running without reconfiguration.
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
- Width:1.5
- Height:6.0
- Depth:3.63
- Poles:1
- Amperes:40
- A.I.C. Rating & Volts:14k @ 277VAC
- Type:EH1
- Approx Dimensions:1.50"W x 6.00"L x 3.63"D
- Additional Notes:40°C, Molded Case Circuit Breaker
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).