Siemens HE3B020 CIRCUIT BREAKER NSFB HE3B020

Description:

The Siemens HE3B020 circuit breaker (NSFB) is used in industrial and commercial electrical protection systems. Commonly installed in motor control centers, switchgear panels, and power distribution boards. Maintenance teams, OEMs, and system integrators use this part for replacement, retrofit, and reliable overcurrent and fault protection.

Applications:

The Siemens HE3B020 NSFB (Non‑Switching Fuse Breaker) is designed to protect electrical circuits and components from overloads and short circuits in industrial environments. It is typically applied in manufacturing facilities, commercial buildings, HVAC systems, and machinery installations where dependable circuit interruption and electrical safety are required for personnel and equipment.

Technical Specifications:

• Manufacturer Part Number (MPN): HE3B020
• Product Type: Circuit Breaker (NSFB)
• Trip Style: Non‑Switching Fuse Breaker
• Current Rating: 20 A
• Pole Configuration: 3‑pole or 4‑pole depending on configuration
• Interrupt Rating: High fault current capacity (model dependent)
• Voltage Rating: Up to 480 V AC industrial rating
• Mounting Type: Panel or DIN rail mount
• Protection Class: IP20
• Standards Compliance: IEC / UL certified
• Operating Temperature: -20°C to +60°C

Common Replacements:

• Siemens HE3B025 circuit breaker
• Square D HFD32020 breaker
• Eaton BL32020 breaker