EHB14040 | Square D 1-Pole 40A 277V Thermal Magnetic Molded Case Circuit Breaker

Schneider Electric · Circuit Breakers & Protection

Description  The Square D EHB14040 Circuit Breaker is a 1-pole, thermal-magnetic molded case breaker designed for precise protection of electrical systems operating at 277 VAC. Rated at 40 amps with an interrupting capacity of 14kA at 277V, this unit ensures dependable circuit isolation and overload protection. Built with a bolt-on mounting design, it provides secure installation and consistent performance in commercial and industrial panelboards.     Technical Specifications  Condition New/Never Used Surplus Brand Square D Category Circuit Breaker Part Number EHB14040 Subcategory Molded Case Series EHB Series Type Thermal Magnetic Poles 1 Phase 1 Voltage Rating 277 VAC Current Rating 40 A Interrupting Capacity 14kA @ 277V Trip Function LI - Long-Time and Instantaneous Connection Type Bolt-On Frame Type EH Mounting Style Bolt-On Frequency 50/60 Hz Enclosure Open (None) Operating Temperature 40 °C Manufacturer Square D / Schneider Electric Weight 2 lb   Information About  EHB14040 The EHB14040 is part of Square D’s EHB Series, known for its compact molded case design and reliable performance under demanding load conditions. It features a bolt-on connection style for firm, vibration-resistant mounting in electrical enclosures. Designed for single-phase, 1-pole operation, it employs thermal-magnetic trip technology that provides both overload and short-circuit protection. This circuit breaker is ideal for use in lighting panels, branch circuits, and general power distribution systems in commercial and industrial applications. Key Features: Rated Current: 40 Amps – Ensures stable performance for medium-load electrical systems. Voltage Rating: 277 VAC – Suitable for commercial and industrial single-phase power networks. Interrupting Capacity: 14kA at 277V – Provides high fault-current protection to prevent equipment damage. Trip Function: LI (Long-Time & Instantaneous) – Offers both overload and short-circuit trip response. Protection Type: Thermal-Magnetic – Delivers accurate response to varying electrical faults. Mounting Type: Bolt-On – Enables secure and straightforward installation in panelboards. Construction: Molded Case – Compact, durable design for extended operational reliability. Operating Temperature: 40°C rated – Built to perform in standard electrical environments. The EHB14040 delivers the reliability and precision required for dependable electrical protection in commercial and industrial installations.

Brand: Schneider Electric · Category: Circuit Breakers & Protection

Key features

• Rated Current: 40 Amps – Ensures stable performance for medium-load electrical systems.
• Voltage Rating: 277 VAC – Suitable for commercial and industrial single-phase power networks.
• Interrupting Capacity: 14kA at 277V – Provides high fault-current protection to prevent equipment damage.
• Trip Function: LI (Long-Time & Instantaneous) – Offers both overload and short-circuit trip response.
• Protection Type: Thermal-Magnetic – Delivers accurate response to varying electrical faults.
• Mounting Type: Bolt-On – Enables secure and straightforward installation in panelboards.
• Construction: Molded Case – Compact, durable design for extended operational reliability.
• Operating Temperature: 40°C rated – Built to perform in standard electrical environments.

Specifications

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