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2CCS571001R0401 ABB S401M-D40 Miniature Circuit Breaker 1P Type D 40A 10kA
ABB S401M-D40 is a 40 A single-pole Type D miniature circuit breaker with 10 kA rated short-circuit capacity, designed for reliable overload and short-circuit protection in SMISSLINE TP plug-in distribution systems.
£29.11
Why Choose the ABB S401M-D40 Miniature Circuit Breaker?
The ABB S401M-D40 is a high-performance single-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in electrical distribution systems. As part of the ABB SMISSLINE TP S400 M-D series, it combines robust circuit protection with the convenient plug-in architecture of the SMISSLINE TP distribution system.
This miniature circuit breaker uses thermal and electromagnetic tripping mechanisms to protect conductors and connected equipment against damaging overcurrents. Its Type D tripping characteristic is particularly suited to appropriately designed circuits supplying equipment with comparatively high starting or inrush currents, including motors, transformers and other inductive loads.
With a rated current of 40 A, a rated voltage of 230 V AC and a rated short-circuit capacity of 10 kA according to EN 60898-1, the S401M-D40 provides dependable protection in a compact one-module format. Its SMISSLINE TP plug-in construction enables straightforward integration into compatible ABB electrical distribution assemblies.
Key Advantages
- Reliable overload and short-circuit protection for electrical circuits.
- 40 A rated current for commercial and industrial distribution applications.
- Type D tripping characteristic suitable for loads with comparatively high starting currents.
- 10 kA rated short-circuit capacity according to EN 60898-1.
- Up to 25 kA ultimate short-circuit breaking capacity at 230 V AC according to IEC 60947-2.
- Current-limiting class 3 performance helps limit fault energy during short circuits.
- Compact single-pole, one-module construction conserves distribution-board space.
- Plug-in design developed specifically for the ABB SMISSLINE TP system.
Key Features
- ABB SMISSLINE TP S400 M-D series.
- 40 A rated current.
- Type D tripping characteristic.
- 1 protected pole.
- 230 V AC rated voltage.
- 50–60 Hz rated frequency.
- 10 kA rated short-circuit capacity.
- 440 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- IP20 degree of protection.
- Compact 18 mm modular width.
Reliable Type D Protection for High-Inrush Loads
Miniature circuit breakers such as the ABB S401M-D40 protect electrical installations by automatically interrupting damaging overcurrents. The thermal mechanism responds to sustained overload conditions, while the electromagnetic mechanism provides rapid disconnection when a short-circuit fault occurs.
The Type D characteristic is particularly useful for appropriately engineered circuits where connected equipment can produce comparatively high transient currents during start-up. Combined with the SMISSLINE TP plug-in architecture, the S401M-D40 provides a compact and dependable protection solution for industrial machinery, motors, transformers and other demanding electrical loads.
Typical Applications
- ABB SMISSLINE TP plug-in distribution boards.
- Industrial machinery and control systems.
- Motor circuits with high starting currents.
- Transformer and inductive-load circuits.
- Commercial and industrial electrical distribution.
- Automation and production equipment.
Technical Specifications
| Series | SMISSLINE TP S400 M-D |
|---|---|
| ABB order code | 2CCS571001R0401 |
| Product group | SMISSLINE Plug-in System |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 40 A |
| Tripping characteristic | Type D |
| Number of poles | 1 |
| Number of protected poles | 1 |
| Rated voltage | 230 V AC |
| Frequency | 50–60 Hz |
| Rated short-circuit capacity (Icn) | 10 kA |
| Ultimate short-circuit breaking capacity (Icu) at 230 V | 25 kA |
| Ultimate short-circuit breaking capacity (Icu) at 400 V | 10 kA |
| Rated insulation voltage (Ui) | 440 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Current limiting class | 3 |
| Pollution degree | 3 |
| Overvoltage category | III |
| Protection rating | IP20 |
| Operating temperature | -25 to +60 °C |
| Rigid conductor capacity | 0.75–35 mm² |
| Multi-wired conductor capacity | 0.75–25 mm² |
| Electrical endurance | 10,000 cycles |
| Width | 18 mm |
| Height | 91 mm |
| Built-in depth | 75 mm |
| Modular width | 1 module |
| Weight | 110 g |
| EAN | 7612270101573 |
| Standard | IEC/EN 60898-1 |
| Mounting system | SMISSLINE TP plug-in system |
Frequently Asked Questions
What is the ABB S401M-D40 used for?
The ABB S401M-D40 provides overload and short-circuit protection for electrical circuits within compatible ABB SMISSLINE TP systems, particularly where connected loads can produce comparatively high starting currents.
What is the rated current of the S401M-D40?
The S401M-D40 has a rated current of 40 A.
What does the Type D tripping characteristic mean?
The Type D characteristic is suited to appropriately designed circuits with relatively high inrush currents, including certain motor, transformer and other inductive-load applications.
What is the short-circuit capacity of the ABB S401M-D40?
The S401M-D40 has a rated short-circuit capacity (Icn) of 10 kA according to EN 60898-1 and an ultimate short-circuit breaking capacity (Icu) of 25 kA at 230 V AC according to IEC 60947-2.
Which distribution system is the S401M-D40 designed for?
The S401M-D40 is a plug-in miniature circuit breaker designed specifically for the ABB SMISSLINE TP system.
Trusted ABB Circuit Protection
ABB SMISSLINE TP S400 M-D miniature circuit breakers combine dependable Type D circuit protection with a compact plug-in architecture for demanding commercial and industrial electrical distribution applications.
