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ABB S401M-C16 — 1-Pole MCB (DIN Rail)

ABB S401M-C16 MCB, 1P 16A Curve C, 10 kA

MPNS401M-C16

ABB S400 series SMISSLN MCB, S401M-C16, 1-pole 16 A Trip Curve C, 240 VAC, 10 kA interrupting capacity, DIN rail mount.

ABB S401M-C16 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S401M-C16 — Specifications
ParameterValue
Amps16
TypeTrip Curve C
Poles1
MountingDIN Rail
Volts AC240
Family (Style)S400
Breaking capacity10 kA

Product details

The ABB S401M-C16 is a 1-pole miniature circuit breaker from the S400 SMISSLN family, rated 16 A with Trip Curve C characteristics at 240 VAC. The DIN-rail footprint snaps into standard distribution boards or subpanels, and the SMISSLN design allows busbar connection without dedicated tools.

The 16 A thermal element protects the branch circuit under sustained overload. One pole, so it switches the live conductor only; neutral must be common or separately protected.

Integration note

The S400 series uses a shared busbar system — order the appropriate pin spacing for multi-pole grouping. Terminal capacity accepts up to 25 mm² conductor; strip length 12–14 mm for cage-clamp termination. No auxiliary contact slot on this 1-pole base; remote status indication requires an external shunt trip or auxiliary module wired separately.

Frequently asked questions

Where can I buy S401M-C16 and get a price?

The S401M-C16 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the interrupting rating of S401M-C16?

The S401M-C16 has a 10 kA interrupting capacity at 240 VAC, meaning it safely clears faults up to that level without contact welding.

What does Trip Curve C mean on this breaker?

Trip Curve C means the magnetic trip operates at 5–10× rated current (80–160 A instantaneous), making it suitable for moderate inrush loads like small motors and lighting ballasts.

Will S401M-C16 drop into a panel specified for S201MUC-K2?

Both mount on 35 mm DIN rail, but the S201MUC-K2 is a 2 A Trip Curve K breaker rated at 277 VAC with 6 kA interrupting capacity — different rating and trip characteristic, so direct substitution without rewiring and coordination review is not recommended.

MPN
S401M-C16