Siemens LGB1B020B Circuit Breaker – VL Series – 20A – 1 Pole – 347VAC – Thermal Magnetic – Bolt-On

The Siemens LGB1B020B is a VL Series molded case circuit breaker designed to provide reliable overload and short-circuit protection for commercial, institutional, and industrial electrical distribution systems. Rated at 20A and 347VAC, this 1-pole breaker is ideal for single-phase applications requiring dependable circuit protection and high interrupting performance.

Equipped with a thermal-magnetic trip unit featuring Long-Time and Instantaneous (LI) protection functions, the LGB1B020B delivers effective protection against sustained overload conditions and fault currents. With a high interrupting capacity of 65kA at 277VAC, it provides enhanced protection for critical electrical systems operating in demanding environments.

This breaker features a bolt-on, panelboard-mounting design and is suitable for reverse-feed applications, offering installation flexibility. Complete with load-side lug terminals, the LGB1B020B is engineered for secure connections and long-term operational reliability.

Specifications

• Brand: Siemens / ITE
• Part Number: LGB1B020B
• Series: VL Series
• Type: LGB Molded Case Circuit Breaker
• Category: Molded Case Circuit Breaker
• Mounting Type: Bolt-On
• Installation Type: Panelboard Mounting
• Protection Type: Thermal Magnetic
• Terminal Configuration: Load Side Lug Terminals
• Special Features: Suitable for Reverse Feed Applications

Electrical Ratings

• Current Rating: 20A
• Voltage Rating: 347VAC
• Number of Poles: 1 Pole
• Phase: 1 Phase
• Interrupting Capacity: 65kA @ 277VAC
• Trip Functions: LI – Long-Time and Instantaneous

Construction

• Compact molded case construction
• VL Series breaker design
• Bolt-on mounting configuration
• Panelboard installation compatible
• Thermal-magnetic trip mechanism
• Load-side lug terminals included
• Reverse-feed capable design
• Durable industrial-grade housing

Functions

• Overload protection
• Short-circuit protection
• Long-time delay protection
• Instantaneous fault protection
• Circuit switching and isolation

Dimensions

• Height: 1 in
• Width: 5.4 in
• Depth: 2.8 in
• Weight: 0.85 lbs

Standards

• CSA Approved

Applications

• Commercial electrical distribution systems
• Institutional facilities
• Industrial control panels
• Panelboard installations
• Lighting distribution systems
• Branch circuit protection

Returns are easy

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

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