Overview
The Siemens HED63B020 is a Sentron Series molded case circuit breaker designed for dependable protection in industrial and commercial electrical distribution systems. With a maximum amperage of 20A and voltage rating of 600VAC, it is designed to protect against short circuits and overloads. This breaker features a rugged ED frame design built for demanding environments.
Key Features
- Provides reliable thermal-magnetic protection for commercial and industrial electrical systems
- Bolt-on installation compatible with Siemens P1, P2, and P3 panelboards and switchboards
- 3-pole configuration provides added safety and flexibility in handling electrical power
- Lug load terminals for wire connection (10 AWG to 1/0 AWG aluminum/copper)
- Thermal-magnetic trip mechanism for fast response to faults
Technical Specifications
- Part Number: HED63B020 / HHED63B020
- Rated Current: 20 Amperes
- Voltage Rating: 600 VAC
- Poles: 3
- Interrupting Rating: 25 kA @ 600 VAC
- Trip Type: Thermal Magnetic
- Frame Type: ED6
- Terminal Type: Bolt-On Lug Terminals
- Operating Temperature: 40°C ambient
- Dimensions: 3.0″ W × 6.5″ H × 3.92″ D
- Certifications: UL 489, CSA 22.2
- Series: Sentron
Typical Applications
The HED63B020 is ideal for protecting 20A circuits in industrial automation panels, motor control centers, distribution boards, and commercial electrical systems. Common applications include machinery control, HVAC systems, lighting circuits, and general-purpose industrial distribution where 3-phase protection is required.
Compatibility & Replacements
Compatible With
- Siemens P1 Panelboards and Switchboards
- Siemens P2 Panelboards and Switchboards
- Siemens P3 Panelboards and Switchboards
- Standard 600VAC three-phase power systems
Replaces / Drop-In Replacement For
This model is replaced by the 3VA5120-6ED31-0AA0 for legacy upgrades, which requires a specific mounting kit for panelboard integration. The HED63B020 is a direct replacement for equivalent ED-frame 20A 3-pole breakers in the Sentron lineup. Verify compatibility with your specific panelboard before ordering.
Works With
- Siemens Sentron Series panelboards
- Standard electrical distribution systems rated 240V, 480V, and 600VAC
- Three-phase power distribution networks
- Bolt-on MCCB installations


















