Siemens ED21B020 Molded Case Circuit Breaker – Sentron Series – ED Frame – 20A – 1 Pole – 240V – Feed-Thru – 10kAIC

The Siemens ED21B020 is a Sentron Series molded case circuit breaker designed to provide reliable overcurrent protection in commercial and industrial electrical distribution systems. This 20A, single-pole breaker features a feed-thru connection design for flexible wiring configurations and is engineered for dependable performance in 240V applications.

Built with thermal magnetic trip technology, the ED21B020 delivers Long-Time and Instantaneous (LI) protection against overloads and short circuits. Its compact ED frame construction ensures efficient installation while maintaining strong electrical reliability in demanding environments.

Specifications

• Brand: Siemens / ITE
• Manufacturer: Siemens
• Part Number: ED21B020
• Series: Sentron Series
• Type: ED Frame
• Category: Molded Case Circuit Breaker
• Mounting Style: Feed-Thru

Electrical Ratings

• Current Rating: 20A
• Number of Poles: 1 Pole
• Voltage Rating: 240V AC
• Phase: 1 Phase
• Interrupting Capacity: 10kAIC @ 240V
• Protection Type: Thermal Magnetic
• Trip Functions: Long-Time, Instantaneous (LI)

Technical Features

• Feed-thru wiring design for installation flexibility
• Line and load-side lug terminals
• Thermal magnetic overcurrent protection system
• Compact ED frame molded case design
• Reliable protection for branch circuits

Environmental & Mechanical

• Ambient Temperature Rating: 40°C
• Dimensions (H × W × D): 6.35 × 1 × 3.92 in
• Weight: 0.7 lbs

Standards and Approvals

• CSA Approved
• Siemens Sentron Authentic Product

Applications

• Commercial electrical distribution systems
• Industrial panelboards
• Branch circuit protection
• HVAC and equipment circuits
• Lighting and receptacle loads
• General-purpose 240V systems

Returns are easy

You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers 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, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.