Abb THHQB32070 Circuit Breaker 70A 22ka 3-pole

Product Description

The ABB THHQB32070 is a 3-pole molded case circuit breaker (MCCB) rated at 70 amps with a 22kA interrupt capacity. It is designed to protect branch circuits and feeder circuits from overcurrent and short-circuit faults in commercial and industrial electrical distribution systems. The THHQB series follows a bolt-on mounting configuration compatible with matching load centers and panelboards. Licensed electricians and electrical contractors handle installation and replacement of this device under NEC guidelines.

This circuit breaker is suited for use in commercial buildings, light industrial facilities, and multi-family residential applications where a robust, high-interrupt-capacity overcurrent protective device is required. The 70-amp rating makes it a common choice for sub-panel feeds, HVAC equipment disconnects, and larger branch circuit protection. Its 22kA interrupting rating addresses fault conditions found in service-entrance and feeder-level applications.

Key Features

• 70-amp continuous current rating for branch and feeder circuit protection
• 22kA short-circuit interrupting capacity for high-fault-current environments
• 3-pole configuration for three-phase distribution systems
• Molded case construction provides durable, self-contained overcurrent protection
• THHQB series bolt-on design for secure panel mounting

Compatibility

Designed as an OEM-style replacement or direct-fit MCCB for panelboards and load centers accepting THHQB-series bolt-on circuit breakers.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the panel and verify absence of voltage before removing or installing the breaker. Confirm the bus bar rating and panel compatibility before installation. Do not exceed the breaker ampere rating when sizing conductors and loads.

Technical Specifications

• Ampere Rating: 70 amps
• Interrupt Capacity: 22kA
• Number of Poles: 3
• Series: THHQB
• UPC: 78316411864

Standard Information

• Brand: ABB
• Manufacturer Part Number: THHQB32070