LGB2B090B - 90Amp Circuit Breaker

LGB2B090B - 90Amp Circuit Breaker

The Siemens LGB2B090B is a robust low voltage panelboard mount G-frame circuit breaker designed for high-demand applications requiring reliable protection and performance. Engineered with a thermal-magnetic trip unit, this UL-listed circuit breaker offers exceptional breaking capacity, making it a trusted choice for both commercial and industrial electrical systems. The LGB frame is renowned for its ability to handle very high breaking capacities, with the LGB2B090B capable of managing up to 14kA at 600Y/347V and an impressive 65kA at 480Y/277V. With load-side lugs only (TC1GG20), and accommodating wire ranges from 8 AWG to 1/0 AWG for both copper and aluminum, this circuit breaker ensures flexible and secure connections.

Key Features and Benefits

• High Breaking Capacity: The Siemens LGB2B090B boasts a high interrupting capacity of 14kA at 600Y/347V and 65kA at 480Y/277V, providing robust protection against electrical faults.
• Thermal-Magnetic Trip Unit: This feature offers reliable overcurrent protection, combining thermal and magnetic sensing for accurate response to overloads and short circuits.
• Compact Design: With dimensions of 2 x 5.4 x 2.8 inches, the breaker is ideal for panelboards where space efficiency is crucial.
• Load-Side Lugs: Equipped with TC1GG20 load-side lugs, it supports flexible installation and secure wiring for copper or aluminum cables.
• UL Listed: Assurance of meeting stringent safety and performance standards as a UL-listed product.

Technical Specifications

• Voltage Rating: 600Y/347V and 480Y/277V
• Current Rating: 90 Amperes
• Poles: 2
• Breaking Capacity: 14kA at 600Y/347V;åÊ65kA at 480Y/277V
• Dimensions (W x H x D): 2 x 5.4 x 2.8 inches
• Weight: 1.852 lbs
• Wire Range: 8 AWG to 1/0 AWG (CU/AL)

Material Compliance and Certifications

• UL Listed: Certified by Underwriters Laboratories (UL), the LGB2B090B complies with rigorous safety and operational standards.
• WEEE Directive: Meets the European WEEE (Waste Electrical and Electronic Equipment) directive requirements for responsible end-of-life disposal.
• REACH Information: Siemens adheres to REACH regulations, ensuring safe use of chemicals and materials in their products.

Suitability

• The Siemens LGB2B090B circuit breaker is designed for use in commercial and industrial settings where reliable electrical protection is critical. Its high interrupting capacity makes it ideal for environments with significant power demands, such as manufacturing facilities, large office complexes, and data centers. The breaker‰۪s compact size and load-side lugs simplify installation in panelboards, making it an excellent choice for new constructions and retrofits alike. Whether you need to safeguard your electrical infrastructure against overloads or short circuits, the LGB2B090B offers dependable performance and safety.

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