Engineered for commercial applications, the ABB A1A100TW is a 100A, 3-pole molded case circuit breaker from the compact Formula A1 series. This unit mount breaker installs into ReliaGear RQ panelboards, Formula panels, and DIN rail enclosures. It serves as a functional replacement for legacy GE TQC32100 breakers (retrofit may be required). With a fixed thermal-magnetic trip unit, it delivers a 10kAIC rating at 240VAC. It is HACR rated and reverse feedable for versatile distribution.
Can the ABB A1A100TW replace legacy GE circuit breakers?
Yes, it serves as a functional replacement for legacy GE TQC32100 circuit breakers. Note that a retrofit kit or panel modification may be required depending on your specific installation.
Which panelboards are compatible with the A1A100TW?
This breaker is designed for direct installation in ABB ReliaGear RQ panelboards and ABB Formula panelboards.
What mounting options are available for this breaker?
This unit-mount breaker supports both chassis and rear mounting configurations. It can also be installed in standard DIN rail enclosures when equipped with the proper DIN rail adapter.
Is the ABB A1A100TW rated for direct current (DC) systems?
Yes, this breaker is rated for use in DC systems up to 250VDC, providing an interrupting capacity of 5kAIC for those applications.
Can I adjust the trip settings on the A1A100TW?
No, this breaker features a fixed thermal-magnetic (LI) trip unit. Both the long-time (thermal) and instantaneous (magnetic) trip thresholds are factory-set and cannot be adjusted in the field.
Is this breaker HACR rated and reverse feedable?
Yes, the A1A100TW is HACR rated for use with heating, air conditioning, and refrigeration equipment. It is also reverse feedable, allowing power to be supplied from either the top or bottom terminals.
What field-installable accessories are compatible with this breaker?
The A1A100TW supports various internal and external accessories, including shunt trips, auxiliary contacts, undervoltage releases, padlock attachments, and DIN rail adapters.
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