Abb THQB32030ST1 Circuit Breaker 30A 10ka 3-pole

Product Description

The ABB THQB32030ST1 is a THQB-series miniature circuit breaker (MCB) rated for 30 amps and 10kA interrupt capacity. It provides overcurrent and short-circuit protection in panelboards and load centers where space and reliable trip performance are critical. The 3-pole configuration makes it suitable for protecting three-phase branch circuits or multi-wire branch circuits in commercial and light industrial applications. Licensed electricians and panel technicians are the primary installers of this device.

This breaker is designed for use in branch-circuit protection applications where a THQB-footprint device is required. The 10kA interrupt rating supports installations where available fault current demands a robust protective device. It fits standard THQB-compatible panelboards and load centers used in commercial construction, tenant improvement work, and light industrial electrical systems.

Key Features

• 30-amp continuous current rating for branch-circuit overcurrent protection
• 10kA interrupt capacity for reliable short-circuit protection
• 3-pole design suitable for three-phase and multi-wire branch circuits
• THQB series footprint for compatibility with THQB-rated panelboards
• Compact MCB form factor conserves panel space

Compatibility

Designed as an OEM-style replacement for THQB-footprint miniature circuit breakers in compatible panelboards and load centers. Refer to the panelboard directory label or manufacturer documentation to confirm breaker approval before installation.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (NEC) and applicable local codes. De-energize the panel and verify the absence of voltage with a calibrated meter before handling any breaker or bus connection. Confirm that the panelboard's directory listing approves the THQB series at the intended ampere rating before installing. Do not exceed the breaker's rated continuous current or interrupt capacity for the circuit being protected.

Technical Specifications

• Ampere Rating: 30A
• Interrupt Capacity: 10kA
• Poles: 3
• Series: THQB
• UPC: 78316403408

Standard Information

• Brand: ABB
• Manufacturer Part Number: THQB32030ST1