Siemens HED42B040L - 40 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens HED42B040L is a 40A, 480V, 2-pole bolt-on molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short circuits. Built for dependable performance in residential, commercial, and light industrial environments, this unit delivers reliable protection where it matters most. - Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays aligned under operation and vibration. - Thermal-magnetic trip unit for stable, repeatable protection performance, adapting to varying load conditions without nuisance trips. - Compatible with matching Siemens OEM loadcenters and panelboards for straightforward installations, simplified replacement, and consistent electrical system design. - 2-pole configuration with a 40A amperage rating and 480V voltage rating, providing effective protection for higher-voltage branch circuits in commercial and light industrial applications. - Ideal for protecting branch circuits against overcurrent and short circuits in panelboards and loadcenters, enabling safer, more predictable electrical distribution. Who this is for: - Electrical contractors and installers seeking a reliable, field-proven bolt-on breaker that matches Siemens equipment. - Builders and facility managers upgrading or retrofitting panels in residential, commercial, or light industrial settings. - Maintainers looking for a durable solution that minimizes vibration-related wear on bus connections. Why choose this over generic breakers: - The bolt-on design specifically targets a rigid, vibration-resistant connection, reducing loosening over time. - The thermal-magnetic trip system delivers clear, predictable trip behavior across a range of faults and operational conditions. - Seamless compatibility with Siemens OEM loadcenters and panelboards simplifies stocking, replacements, and service planning. Technical specifications at a glance: - Manufacturer: Siemens - Part Number: HED42B040L - Type: Thermal-magnetic molded case circuit breaker - Amperage Rating: 40A - Voltage Rating: 480V - Number of Poles: 2 - Mounting Style: Bolt-on - Application: Branch circuit overcurrent and short-circuit protection Practical tips: - Ensure proper bolt-on mounting torque as specified for secure bus connections and optimal trip performance. - Use only with compatible Siemens loadcenters and panelboards to maintain protection coordination and safety margins. - Consider this unit for upgrades where 480V distribution is present and robust, vibration-resistant protection is required.