ABB Formula A MCCBs are molded case circuit breakers for general distribution. The range covers 20 A to 630 A in 1 to 4 poles with thermal-magnetic trip units, with about 59 products. Stoklink ships worldwide from Turkey and quotes volumes on request.
What's in this range
- A1 frames up to 125 A, A2 frames up to 250 A.
- TMF thermal-magnetic trip units with fixed thermal and magnetic settings.
- N and C breaking capacity versions.
- For the wider ABB range see ABB Tmax XT MCCBs.
How to choose
- Frame size and rated current must cover the load.
- Breaking capacity class (C or N) must exceed the fault level at the point of installation.
- Pole count follows the neutral arrangement.
FAQ
What does TMF mean in a Formula A title?
TMF is a thermal-magnetic trip unit with fixed settings. The numbers show the rated current and the magnetic trip level.
Is Formula A suited to motor protection?
Check the trip curve against the motor starting current. A dedicated motor protection breaker is better for frequent starts.
Do you ship Formula A breakers abroad?
Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, so request a quote with your part numbers and quantities.
