Siemens ED41B040 Circuit Breaker 1 Pole 480V 40A

Product Description

The SIEMENS ED41B040 is a single-pole molded case circuit breaker rated for 480 volts and 40 amps, designed for branch circuit protection in commercial and industrial electrical distribution systems. Part of the ED4 series, it provides reliable overcurrent and short-circuit protection in panel boards and load centers where 480V single-phase circuits require interruption capability. Licensed electricians install this breaker during new construction, panel upgrades, or service replacements. Its compact molded case form factor fits standard ED-frame panel enclosures. The 40-amp continuous rating and 480-volt rating make it well suited for motor branch circuits, HVAC equipment feeds, and general commercial loads.

The ED41B040 is intended for commercial and light industrial applications where 480-volt single-pole branch circuit protection is required. Typical installations include motor control centers, distribution panels, and commercial electrical panels serving HVAC units, pumps, compressors, and similar equipment. This breaker is appropriate for both new panel builds and direct replacement of existing ED-frame single-pole 480V 40A breakers in field service situations.

Key Features

• Single-pole configuration rated at 40 amps continuous current
• 480-volt rating suitable for commercial and industrial distribution
• ED4 series molded case design for use in compatible ED-frame enclosures
• Provides overcurrent and short-circuit protection for branch circuits
• Compact profile at 6.000 x 4.000 x 1.000 inches for panel space efficiency

Compatibility

Designed as an OEM-style replacement for ED-frame single-pole 480V circuit breakers in compatible commercial and industrial panel boards and load centers.

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 the panel and verify absence of voltage using appropriate test equipment before handling or installing the breaker. Ensure the enclosure and bus rating are compatible with 480 volts and the intended ampacity before seating the breaker. Do not install in a panel rated below the breaker voltage or ampere rating.

Technical Specifications

• Poles: 1
• Voltage Rating: 480 volts
• Ampere Rating: 40 amps
• Series: ED4
• Dimensions (L x W x H): 6.000 x 4.000 x 1.000 inches
• Weight: 0.851 pounds
• UPC: 78364320913

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: ED41B040