ABB S201Z40 single-pole miniature circuit breaker with 40 A rated current, Z characteristic tripping curve, 10 kA breaking capacity and DIN rail mounting.
£53.68
The ABB S201Z40 is a single-pole miniature circuit breaker (MCB) from ABB's trusted System pro M compact S200 range. Designed with a Z characteristic tripping curve and a 40 A rated current, it provides highly sensitive protection for electronic equipment, control circuits and semiconductor devices where rapid disconnection during low fault currents is essential.
The Z-curve trips magnetically between approximately 2 and 3 times the rated current, making it ideal for protecting sensitive electronic loads that require faster fault clearance than standard B, C or D curve circuit breakers.
Suitable for residential, commercial and industrial installations, the ABB S201Z40 combines dependable overload and short-circuit protection with robust DIN rail mounting, high-quality construction and compatibility with the extensive ABB System pro M compact accessory range.
Unlike conventional B, C or D curve circuit breakers, the ABB S201Z40 is specifically engineered for circuits containing sensitive electronic equipment, programmable controllers, instrumentation and semiconductor devices. Its Z characteristic ensures rapid magnetic tripping at low fault currents, helping minimise damage to valuable equipment.
Manufactured using ABB's proven thermal-magnetic protection technology, the S201Z40 delivers dependable overload protection, excellent short-circuit interruption capability and long operational life in demanding commercial and industrial environments.
| Current | 40 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200 |
| Model | S201Z40 |
| Catalogue Number | 2CDS251001R0558 |
| Product type | Miniature Circuit Breaker (MCB) |
| Number of poles | 1 |
| Rated current | 40 A |
| Trip characteristic | Z Curve |
| Rated operational voltage | 230/400 V AC |
| Maximum insulation voltage | 440 V AC |
| Breaking capacity | 10 kA |
| Frequency | 50/60 Hz |
| Mounting type | DIN rail |
| Module width | 17.5 mm |
| Terminal type | Twin terminals with captive screws |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S201Z40 is a single-pole 40 A miniature circuit breaker with a Z characteristic designed to protect sensitive electronic equipment and control circuits.
A Z curve MCB trips very quickly at low fault currents, making it ideal for protecting electronic devices, PLCs, instrumentation and semiconductor equipment.
The S201Z40 provides a 10 kA short-circuit breaking capacity.
The ABB S201Z40 is a single-pole (1P) miniature circuit breaker.
It complies with IEC/EN 60898-1 and IEC/EN 60947-2 for miniature circuit breakers.
ABB System pro M compact miniature circuit breakers are trusted worldwide for providing dependable overload and short-circuit protection across residential, commercial and industrial electrical installations.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...