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ABB A2A150TT Molded Case Circuit Breaker

  • 150A
  • 3 Pole
  • Unit Mount
ABB A2A150TT
Molded Case Circuit Breaker
Brand ABB
SKU A2A150TT
Select Item Condition
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  • 150A
  • 3 Pole
  • Unit Mount

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ABB A2A150TT - 150A 3 Pole Molded Case Circuit Breaker

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$406.77 No Stock

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Description

Built to handle 150A loads, this 3-pole molded case circuit breaker from the ABB Formula A2 series provides essential long-time and instantaneous protection. It is suitable for commercial and industrial power distribution. This unit mount breaker installs into ABB ReliaGear RQ panelboards and serves as a replacement for discontinued TQD32150 breakers. Rated at 10kAIC at 240VAC, the HACR-rated MCCB features fixed thermal-magnetic trip settings.

Specifications

Key specifications
Brand ABB
Series Formula
Amperage 150A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 250VDC
Phase 3
AIC Rating 10kA @ 240VAC, 10kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With ABB ReliaGear RQ Panelboards
Wire Gauge 1 AWG - 250 kcmil (Cu/Al)
Max Wire 250 kcmil
Min Wire 1 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Rotary Handle
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CSA, IEC, UL, cULus
Temp Rating -25C to 70C
Construction Features HACR Rated, Reverse Feed

Product FAQs

6 answers
What panelboards are compatible with the ABB A2A150TT?

This 3-pole breaker is designed for use as a main or sub-feed breaker in ABB ReliaGear RQ lighting panelboards.

Can the A2A150TT replace older GE circuit breakers?

Yes, the ABB A2A150TT serves as a direct replacement for the discontinued GE TQD32150 circuit breaker in compatible panelboards.

What wire sizes are accepted by the lugs on the A2A150TT?

The factory-installed lugs accept copper or aluminum conductors ranging from 1 AWG to 250 kcmil.

What type of trip unit is installed in the A2A150TT?

It features a fixed thermal and fixed magnetic (TMF) trip unit, providing both long-time and instantaneous overcurrent protection without the need for field adjustments.

Are there specific mounting orientation requirements for this breaker?

No, ABB Formula A2 frame circuit breakers can be mounted horizontally, vertically, or flat without any derating of their performance characteristics.

What is the maximum operating altitude for the A2A150TT before derating is required?

This breaker can be operated at altitudes up to 6,562 feet without derating. Above this elevation, atmospheric changes impact cooling and dielectric strength, requiring performance adjustments.

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