Siemens HR63 - 100A, Circuit Breaker

Engineered for serious electrical protection, the Siemens HR63 100A circuit breaker delivers reliable overcurrent protection in a robust, compact package. Built to partner with panelboards, switchboards, control panels, and OEM equipment, this device helps keep critical systems safe and productive.

Why choose the HR63 100A for your facility

• Precise 100-amp current rating provides appropriate protection for feeders and downstream equipment in distribution panels and motor control centers.
• trusted Siemens reliability across industrial, commercial, and OEM environments reduces nuisance trips and service interruptions.
• Designed for straightforward integration with existing Siemens installations, enabling smoother upgrades, replacements, or retrofits.
• Rugged construction supports demanding duty cycles in control panels and switchboards, contributing to longer service life in harsh electrical environments.
• Delivers dependable, fast-acting protection against overcurrent events, helping protect wiring, motors, and sensitive devices.

Ideal applications and use cases

Perfect for facilities that rely on safe, predictable electrical protection in critical infrastructure:

• Industrial facilities with motor control centers requiring reliable 100A feeders.
• Commercial distribution panels where consistent overcurrent protection is essential for uptime.
• OEM equipment enclosures that require a rugged, easily sourced circuit breaker from a trusted supplier.

Specifications at a glance

• Current rating: 100 A
• Breaker type: Circuit Breaker

Practical tips for installation and compatibility

To ensure optimal performance, verify that the HR63 100A fits your panelboard, switchboard, or OEM enclosure’s frame and busbar configuration, and match the circuit-breaker style to the intended protection plan per local electrical codes. When replacing an existing device, confirm the HR63 model aligns with the same electrical rating and mounting arrangement to minimize downtime and rewiring needs. For ongoing reliability, schedule periodic inspection of contact surfaces and ensure clean, secure terminations.