ABB Basic M MCBs

ABB Basic M MCBs are entry-level DIN-rail miniature circuit breakers with a 3 kA breaking capacity. The range covers 6 A to 63 A in 1, 2, 3 and 4 poles, with more than 80 products. Stoklink ships worldwide from Turkey and quotes volumes on request.

What's in this range

• BMS311, BMS313 and BMS314 types for 1P, 3P and 4P circuits.
• B and C curve versions at 230 V and 400 V AC.
• For higher fault levels see ABB System pro M compact S200 MCBs.

How to choose

• 3 kA breaking capacity suits only installations with a low prospective short-circuit current. Check it first.
• Select the curve from the load: B for resistive circuits, C for general loads.
• Select the rating from the cable and the pole count from the supply system.

FAQ

Where is a 3 kA MCB acceptable?

In small installations where the calculated fault current at the board is below 3 kA. Higher fault levels need a 6 kA or 10 kA breaker.

What do the letters in BMS311C32 mean?

BMS311 is the series and pole count, C is the curve and 32 is the rated current in amperes.

Can I order Basic M breakers in bulk?

Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, so request a quote with your part numbers and quantities.