Siemens HEB3B015B - 15 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens HEB3B015B is a 15A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers.

• Bolt-on mounting provides a rigid, vibration-resistant bus connection that stays secure through installation and daily operation, reducing the risk of loose contacts and arcing over time.
• Thermal-magnetic trip unit combines precise thermal overload sensing with fast magnetic interruption for stable, repeatable protection across a wide range of fault currents.
• Three-pole design ensures simultaneous disconnection of all phases in three-phase systems, promoting safer fault isolation and better coordination with downstream equipment.
• OEM-compatible is engineered to fit matching Siemens OEM load centers and panelboards, streamlining replacement, service, and parts availability.
• Versatile for multiple settings this breaker is well-suited for residential, commercial, and light industrial applications where reliable 3-phase protection is required.

Technical specifications

• Manufacturer: Siemens
• Part Number: HEB3B015B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

• Protect three-phase distribution in commercial panelboards and light industrial electrical rooms, ensuring quick isolation of faults with minimal disruption to other circuits.
• Provide reliable protection for HVAC drives, three-phase motors, and control panels that require 600V class protection.
• Retrofitting or replacing worn breakers in Siemens OEM panels with a unit that matches the original trip characteristics and mounting geometry.

This HEB3B015B combines durable construction with precise, repeatable protection, making it a dependable choice for technicians and facilities managers who demand consistent performance across the life of the installation. Whether you're upgrading an aging panel or stocking spare parts for future maintenance, this Siemens 3-pole bolt-on breaker delivers the reliability and compatibility you need for safe, efficient electrical distribution.