Siemens HGB1B050B Molded Case Circuit Breaker – VL Series – 50A – 1 Pole – 347V – Bolt-On – Thermal Magnetic – High Interrupting Capacity

The Siemens HGB1B050B is a VL Series molded case circuit breaker engineered for reliable overcurrent protection in commercial and industrial panelboard applications. Rated at 50A and up to 347V AC, this 1-pole bolt-on circuit breaker features a thermal-magnetic trip unit that provides both long-time overload protection and instantaneous short-circuit protection for dependable circuit safety.

Part of the Siemens HGB frame family, this breaker offers high interrupting capacity and is UL listed for panelboard mounting applications. Equipped with load-side lugs and supporting both copper and aluminum conductors, the HGB1B050B provides a compact and efficient solution for branch circuit protection in demanding electrical distribution systems.

Specifications

• Brand: Siemens Breakers
• Part Number: HGB1B050B
• Series: VL Series
• Type: HGB Frame Molded Case Circuit Breaker
• Category: Molded Case Circuit Breaker / 1-Pole
• Connection Type: Bolt-On
• Protection Type: Thermal Magnetic

Electrical Ratings

• Current Rating: 50A
• Voltage Rating: 347V AC
• Number of Poles: 1 Pole
• Phase: 1 Phase

Interrupting Capacity

• 14kAIC @ 347V
• 35kAIC @ 277V

Functions

• LI – Long-Time and Instantaneous Protection
• Thermal-Magnetic Trip Unit
• High Interrupting Capacity Design
• Suitable for Panelboard Mounting Applications

Connections

• Load-Side Lugs Only (TC1GG20)
• Wire Range: 8 AWG – 1/0 AWG (Copper/Aluminum)
• Bolt-On Mounting Configuration

Construction

• Compact molded case construction
• Durable industrial-grade housing
• UL Listed HGB frame design
• Designed for reliable long-term operation

Physical Specifications

• Dimensions (W × H × D): 1" × 5.4" × 2.8"
• Weight: 0.86 lb

Standards and Approvals

• UL Listed
• CSA Approved

Applications

• Commercial electrical panelboards
• Industrial distribution systems
• Branch circuit protection
• Lighting distribution circuits
• HVAC equipment protection
• Control panel installations
• General low-voltage power distribution systems

Returns are easy

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

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