Description
ABB S271-K4A Miniature Circuit Breaker 4A 1-Pole 230/400V 6kA K-Curve DIN Rail
The ABB S271-K4A is a 1-pole, 4-amp miniature circuit breaker (MCB) from ABB's S271 series, featuring a K-curve (high magnetic trip threshold) trip characteristic. It is rated for 230/400V AC service with a 6kA breaking capacity and mounts on standard DIN rail.
Specifications & What's Included
- Manufacturer: ABB
- Model: S271-K4A
- Series: S271
- Type: Miniature Circuit Breaker (MCB)
- Rated Current: 4A
- Number of Poles: 1
- Trip Characteristic: K-Curve (high inrush tolerance, suitable for motor and transformer loads)
- Voltage Rating: 230/400V AC (~ 230/400, as marked on label)
- Breaking Capacity: 6,000A (6kA) at rated voltage
- Mounting: Standard DIN rail
- Standards: IEC 60898, CE marked
Applications
The ABB S271 series is a widely used line of DIN rail-mounted miniature circuit breakers designed for branch circuit protection in industrial control panels, commercial electrical distribution boards, and building automation systems. The K-curve trip characteristic is designed to tolerate high inrush currents — such as those produced by motors, transformers, and solenoids — without nuisance tripping, making the S271-K4A well suited to motor branch circuit protection and similar inductive load applications. ABB's S271 series MCBs conform to IEC 60898 and are a common choice for panel builders and electrical contractors working on European-standard and IEC-compliant installations worldwide. The 6kA breaking capacity makes this breaker appropriate for most industrial and commercial distribution panels where prospective fault current does not exceed that rating.
This ABB S271-K4A Miniature Circuit Breaker has been inspected and appears to be in good used condition. The unit is clean with no visible damage to the housing, toggle, or DIN rail clip. It was pulled from a working environment where it was previously in service. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
ABB |
Model: |
S271-K4A |
MPN: |
S271-K4A |
Type: |
Miniature Circuit Breaker (MCB) |
SKU: |
46314 |
Amperage: |
4A |
Number of Poles: |
1 |
Trip Characteristic / Curve: |
K |
Voltage Rating: |
230/400V AC |
Breaking Capacity: |
6000A (6kA) |
Mounting Type: |
DIN Rail |
Series: |
S271 |
Seller Notes: |
Circuit breaker only — no accessories or mounting hardware included. |
Country/Region of Manufacture: |
Germany |
Form Factor: |
DIN Rail Module, 1-Pole Width |
Standards: |
IEC 60898, CE marked |
Condition Notes: |
This ABB S271-K4A miniature circuit breaker has been inspected and is in good used condition. Clean housing, toggle, and DIN rail clip. Pulled from a working environment. Contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
