GE THQB32070ST1 - 70 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

GE THQB32070ST1 is a 70A, 240V, 3-pole bolt-on molded case circuit breaker built to deliver reliable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters.

With a thermal-magnetic trip unit, it offers stable, repeatable protection performance across a wide range of operating conditions. The secure bolt-on mounting provides a rigid, vibration-resistant bus connection that helps maintain consistent electrical contact over time, even in environments with equipment vibration.

Designed for compatibility with GE OEM loadcenters and panelboards, this breaker is a practical choice for residential, commercial, and light industrial applications where robust protection is essential.

Why this breaker stands out

• Precise 70A, 240V, 3-pole protection: Guards three-phase circuits and feeds in panelboards where 240-volt distribution is required.
• Bolt-on mounting: Delivers a rigorous, secure bus connection and quicker serviceability during maintenance or replacement.
• Thermal-magnetic trip: Combines heat and magnetic tripping to respond to both gradual overloads and sudden short circuits with repeatable performance.
• OEM-compatible: Engineered to pair with GE loadcenters and panelboards for a clean, reliable fit.
• Versatile application: Suitable for residential, commercial, and light-industrial panels needing dependable protection.

Technical specifications

• Manufacturer: GE
• Part Number: THQB32070ST1
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Install in GE panelboards or loadcenters requiring a 70A, 3-pole, 240V protection device
• Replace an existing THQB-series breaker with matching specifications to maintain panel compatibility
• Protect feeders supplying three-phase equipment or transformers in light commercial or industrial settings

Installation and safety tips

• Ensure the panelboard is rated for bolt-on breakers and that your enclosure accommodates a 3-pole, 240V device.
• Power down the service and verify no voltage at the bus before installation. Follow all local electrical codes and the panel manufacturer's guidelines.
• A secure bolt-on connection reduces the risk of contact resistance from vibration, contributing to long-term reliability.