LGB3B070B - 70A Circuit Breaker

LGB3B070B - 70A Circuit Breaker

The Siemens LGB3B070B circuit breaker is a robust, high-performance solution designed for low voltage applications in panelboard systems. This G Frame circuit breaker is engineered with a thermal-magnetic trip unit, providing reliable protection by responding to both overcurrent conditions and short circuits. As a part of Siemens' commitment to delivering safe and efficient electrical solutions, the LGB3B070B boasts an exceptional breaking capacity, ensuring it can handle significant fault currents without compromising system integrity. This model is specifically suited for environments requiring high durability and performance, making it ideal for commercial and industrial settings.

Key Features and Benefits:

• Thermal-Magnetic Trip Unit: Combines thermal and magnetic tripping mechanisms to protect against both overloads and short circuits, enhancing safety and reliability.
• High Breaking Capacity: Capable of interrupting high fault currents (14kAIC at 600Y/347V and 65kAIC at 480Y/277V), this breaker ensures robust protection for critical infrastructure.
• Compact Design: With dimensions of 3 x 5.4 x 2.8 inches, it offers a compact solution without sacrificing performance, fitting easily into panelboards and reducing installation space.
• Versatile Load Connections: Equipped with load-side lugs only (TC1GG20) supporting wire ranges from 8 to 1/0 AWG (CU/AL), facilitating flexible and secure connections.
• Siemens Quality and Reliability: Backed by Siemens' extensive experience and rigorous quality standards, ensuring long-term performance and dependability.

Technical Specifications:

• Amperage Rating: 70A
• Number of Poles: 3
• Interrupting Rating: 14kAIC at 600Y/347V; 65kAIC at 480Y/277V
• Frame Type: G Frame
• Mounting: Panelboard Mount
• Dimensions (W x H x D): 3 x 5.4 x 2.8 inches
• Wire Range: 8 - 1/0 AWG (CU/AL)
• Net Weight: 2.756 lbs

Material Compliance and Certifications:

• UL Listed: Complies with stringent UL standards, ensuring it meets high safety and performance benchmarks.
• RoHS Directive Compliance: Free from hazardous substances as per the Restriction of Hazardous Substances directive, promoting environmental and user safety.
• WEEE Directive: Adheres to the Waste Electrical and Electronic Equipment Directive, facilitating responsible recycling and disposal.

Suitability:

• The Siemens LGB3B070B circuit breaker is an ideal choice for commercial and industrial applications requiring reliable low voltage power distribution. Its high interrupting capacity makes it particularly suited for installations where fault conditions are prevalent. This breaker is perfect for use in panelboards within office buildings, manufacturing facilities, and other environments demanding robust electrical protection. Its compliance with UL and RoHS standards also makes it a responsible and sustainable choice for businesses committed to safety and environmental stewardship.