Westinghouse | HFB3070 | Circuit Breaker | 70A | 3-Pole | 600V | 25kA | Bolt-On

Meet the Westinghouse HFB3070 Circuit Breaker — a purpose-built, 70A, 3-pole protection device designed for serious electrical environments. With a 600V maximum circuit rating and a robust 25kA interrupting capacity, this bolt-on breaker delivers reliable fault protection for 3-phase distributions in industrial and commercial panels.

Key specifications at a glance

• Amperage: 70 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Interrupting capacity: 25 kA
• Mounting style: Bolt-On
• Part reference: HFB3070

Why this Westinghouse breaker stands out

• Exact-spec replacement, minimal downtime: The HFB3070 is a precise match for systems that require 70 A, 3 poles, and 600 V, making maintenance and retrofit projects quicker and more reliable.
• High fault tolerance: With a 25kA interrupting capacity, it’s prepared to safely interrupt substantial fault currents, protecting wiring, devices, and operators in demanding environments.
• Secure Bolt-On installation: The bolt-on design ensures a sturdy, vibration-resistant mount in compatible panels, simplifying retrofits and panel upgrades.
• Trusted brand, clear compatibility path: The part number HFB3070 serves as the best reference for compatibility, reducing guesswork when sourcing or cross-referencing components.

Ideal use cases

• Panel retrofits and replacements: Upgrade or replace existing 3-pole, 70A, 600V breakers in industrial controls, manufacturing lines, or commercial power distributions.
• New installations in compatible systems: Deploy in new layouts that require a bolt-on, 3-pole solution with adequate interrupting capacity for 600V circuits.
• Maintenance checks: Use as a straightforward, spec-aligned replacement part to restore protective capabilities without altering panel design.

Practical tips for installation and compatibility

Before ordering, confirm that your equipment and panel are designed to accept bolt-on, 3-pole breakers of this rating. Keep the part number HFB3070 handy as the most reliable reference for compatibility. When planning installation, ensure the following:

• Power is fully de-energized and the panel is secured according to safety protocols.
• The mounting footprint matches the bolt-on style used in your panel enclosure.
• Wiring terminals and conductor sizes are appropriate for a 70 A, 600 V circuit.
• Coordinate with maintenance schedules to minimize downtime during retrofits or replacements.

This Westinghouse HFB3070 circuit breaker delivers a precise, dependable solution for protecting 3-phase electrical systems. By aligning with exact specs, offering solid fault protection, and providing straightforward bolt-on installation, it helps ensure safer operation and longer equipment life in demanding environments.