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2CCS571001R1088 ABB S401M-UCZ8 MCB DC 1P Type Z 8 A
ABB S401M-UCZ8 is an 8 A single-pole Type Z miniature circuit breaker with 10 kA short-circuit breaking capacity, designed for overload and short-circuit protection in DC SMISSLINE TP electrical systems.
£47.68
Why Choose the ABB S401M-UCZ8 Miniature Circuit Breaker?
The ABB S401M-UCZ8 is a compact single-pole miniature circuit breaker (MCB) developed for reliable overload and short-circuit protection in DC applications. As part of the ABB SMISSLINE TP S400M UC series, it combines dependable circuit protection with the installation flexibility of ABB's pluggable SMISSLINE TP distribution system.
The S400M UC range extends ABB's SMISSLINE TP circuit-protection platform to direct-current systems. The S401M-UCZ8 is designed for single-pole DC applications up to 220 V DC and integrates directly with compatible SMISSLINE TP socket-base assemblies, supporting efficient installation, replacement and system expansion.
With a rated current of 8 A, a Type Z tripping characteristic and a short-circuit breaking capacity of 10 kA, the S401M-UCZ8 is suited to sensitive control, monitoring and auxiliary circuits where rapid response to overcurrent is required. It complies with IEC/EN 60947-2 and carries ABB order code 2CCS571001R1088.
Key Advantages
- Designed for reliable DC circuit protection within the ABB SMISSLINE TP system.
- 8 A rated current suitable for control, monitoring and auxiliary circuits.
- Type Z tripping characteristic for sensitive circuits requiring rapid magnetic response to overcurrent.
- 10 kA short-circuit breaking capacity for dependable fault protection.
- Single-pole configuration suitable for DC applications up to 220 V DC.
- Pluggable construction developed specifically for the ABB SMISSLINE TP system.
Key Features
- ABB SMISSLINE TP S400M UC series.
- 8 A rated current.
- Single-pole (1P) configuration.
- Type Z trip characteristic.
- 10 kA short-circuit breaking capacity.
- Suitable for DC applications up to 220 V DC.
- 440 V rated insulation voltage.
- IEC/EN 60947-2 compliant.
- IP20 degree of protection.
- Compact 18 mm single-module width.
Reliable DC Circuit Protection for SMISSLINE TP Systems
The ABB S400M UC range extends the SMISSLINE TP miniature circuit-breaker platform to DC applications. The S401M-UCZ8 combines thermal overload protection with rapid short-circuit protection in a compact single-pole format, helping protect conductors and connected equipment against damaging overcurrent conditions.
Its Type Z characteristic is intended for sensitive circuits where the magnetic release needs to respond at a comparatively low multiple of rated current. Together with the SMISSLINE TP plug-in architecture, this makes the S401M-UCZ8 suitable for control, monitoring, automation and auxiliary circuits where dependable protection and efficient maintenance are important.
Typical Applications
- DC control and auxiliary circuits.
- Industrial automation and monitoring systems.
- ABB SMISSLINE TP distribution assemblies.
- Sensitive electronic and control circuits.
- Commercial and industrial DC distribution.
- Critical-power and control-panel applications.
Technical Specifications
| Series | SMISSLINE TP S400M UC |
|---|---|
| ABB order code | 2CCS571001R1088 |
| EAN | 7612270110155 |
| Product type | Miniature circuit breaker (MCB) |
| Application | DC circuit protection |
| Rated current | 8 A |
| Number of poles | 1P |
| Tripping characteristic | Type Z |
| Maximum DC voltage, single-pole application | 220 V DC |
| Short-circuit breaking capacity | 10 kA |
| Rated insulation voltage (Ui) | 440 V |
| Energy limiting class | 3 |
| Protection rating | IP20 |
| Electrical endurance | 10,000 cycles |
| Solid conductor capacity | 0.75–35 mm² |
| Multi-wired conductor capacity | 0.75–25 mm² |
| Operating temperature | -25 to +60 °C |
| Mounting type | Plug-in SMISSLINE TP system |
| Standard | IEC/EN 60947-2 |
| Module width | 18 mm |
| Dimensions (H × W × D) | 91 × 18 × 75 mm |
| Weight | approx. 110 g |
Frequently Asked Questions
What is the ABB S401M-UCZ8 used for?
The ABB S401M-UCZ8 provides overload and short-circuit protection for DC circuits, including control, monitoring and auxiliary applications within compatible ABB SMISSLINE TP systems.
What is the current rating of the S401M-UCZ8?
The ABB S401M-UCZ8 has a rated current of 8 A.
What does the Type Z characteristic mean?
The Type Z tripping characteristic provides sensitive magnetic overcurrent protection and is suited to circuits where rapid response at comparatively low multiples of rated current is required.
Can the ABB S401M-UCZ8 be used on DC circuits?
Yes. The S401M-UCZ8 belongs to ABB's S400M UC range for DC applications and is suitable for single-pole DC circuits up to 220 V DC.
How is the S401M-UCZ8 installed?
The breaker is designed as a pluggable device for the ABB SMISSLINE TP system, allowing direct integration into compatible SMISSLINE socket-base distribution assemblies.
Trusted ABB Circuit Protection
ABB SMISSLINE TP S400M UC miniature circuit breakers combine dependable DC circuit protection with a compact plug-in architecture for industrial, commercial and automation electrical systems.
