Siemens ED42B040 Circuit Breaker 2P 480V 40A

Product Description

The SIEMENS ED42B040 is a 2-pole, 40-amp molded case circuit breaker rated for 480 volts AC, belonging to the ED4 series. It provides overcurrent and short-circuit protection in branch circuit and feeder applications. This breaker is designed for installation in commercial and industrial panelboards and switchboards where 480V distribution is required. Licensed electricians handle installation and service. At 2.701 pounds, it is a compact, robust device suited for demanding electrical distribution environments requiring reliable fault interruption at medium-voltage levels.

The ED42B040 is applied in commercial and light industrial electrical distribution systems operating at 480 volts. Typical installations include motor branch circuits, feeder circuits, and panel mains where a 2-pole, 40-amp breaker is specified. It fits applications requiring UL-listed overcurrent protection devices in 480V three-phase or single-phase distribution configurations.

Key Features

• 2-pole configuration for 480V single-phase or phase-to-phase branch circuit protection
• 40-amp continuous current rating for medium-load branch and feeder circuits
• ED4 series molded case design built for commercial and industrial panelboard installation
• Compact form factor at 2.701 pounds for straightforward panel integration

Compatibility

Designed as an OEM-style replacement or new-installation molded case circuit breaker for commercial and industrial panelboards and switchboards rated for 480V, 2-pole breaker positions in the ED4 series form factor.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the panelboard or switchboard completely before removing or installing this breaker. Verify that the panel bus rating, wire gauge, and termination torque requirements match the breaker specifications prior to energizing. Do not install this breaker in a panel that is not rated for the ED4 series form factor.

Technical Specifications

• Poles: 2
• Voltage Rating: 480 volts AC
• Amperage Rating: 40 amps
• Series: ED4
• Weight: 2.701 pounds
• UPC: 78364320926

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: ED42B040