ABB FS401, S400, SmiSSline S400M Miniature Circuit Breaker, 1-Pole, 4A, Type C, Type D, Type K, Type B, 400V ac AC, 250
- RS Stock No.:
- 177-838
- Mfr. Part No.:
- 2CCS571001R0045 S401M-B4
- Manufacturer:
- ABB
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View bulk pricing optionSubtotal (1 unit)*
SGD58.36
(exc. GST)
SGD63.61
(inc. GST)
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In Stock
- Plus 22 unit(s) shipping from 01 June 2026
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Units | Per unit |
|---|---|
| 1 - 4 | SGD58.36 |
| 5 - 9 | SGD57.13 |
| 10 + | SGD55.40 |
*price indicative
- RS Stock No.:
- 177-838
- Mfr. Part No.:
- 2CCS571001R0045 S401M-B4
- Manufacturer:
- ABB
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | ABB | |
| Number of Poles | 1 | |
| Product Type | Miniature Circuit Breaker | |
| Current Rating | 4A | |
| Tripping Characteristics | Type C, Type D, Type K, Type B | |
| Rated AC Voltage | 400V ac | |
| Rated DC Voltage | 250V dc | |
| Breaking Capacity | 10kA | |
| Mount Type | DIN Rail | |
| Range | FS401, S400, SmiSSline | |
| Series | S400M | |
| Standards/Approvals | EN 60898-1, IEC/EN 60947-2 | |
| Width | 18mm | |
| Depth | 97mm | |
| Select all | ||
|---|---|---|
Brand ABB | ||
Number of Poles 1 | ||
Product Type Miniature Circuit Breaker | ||
Current Rating 4A | ||
Tripping Characteristics Type C, Type D, Type K, Type B | ||
Rated AC Voltage 400V ac | ||
Rated DC Voltage 250V dc | ||
Breaking Capacity 10kA | ||
Mount Type DIN Rail | ||
Range FS401, S400, SmiSSline | ||
Series S400M | ||
Standards/Approvals EN 60898-1, IEC/EN 60947-2 | ||
Width 18mm | ||
Depth 97mm | ||
- COO (Country of Origin):
- CH
ABB MCB, 10kA Short-Circuit Capacity, IP20 Rating - S400M Series - S401M-B4
Use this MCB from ABB to protect people and equipment in your workspace from the harmful effects of overvoltage. As a type B breaking component, it trips quickly to break the circuit and stop electrical energy whenever it's supplied with between 3 and 5 times the 4A rated load. This makes it a practical choice in lower-powered residential settings as its quick tripping action helps to ensure effective protection when even slight overcurrent faults occur. As part of ABB's innovative SMISSLINE TP plug-in distribution system, it's specifically designed for easy mounting and quick dismounting with the assurance of touch protection.
Features & Benefits
• Withstands inrush voltage rating of 4kV, so prevents large surges causing equipment failure
• Inspection window displays pole conductor contacting for easy status checks
• Comes with integrated input wiring, so is ready to install
• IP20 rating means it's finger-safe and protected against objects larger than 12mm
Applications
• Welding equipment
• Industrial lighting
• Factory automation
How do I mount this MCB?
You can easily mount this MCB directly onto a standard 35mm DIN rail without needing to use any tools.
Related links
- ABB S400 1-Pole Type K Type C 400V ac AC, 250 V dc
- ABB S400 3-Pole Type D Type C 400V ac AC, 250 V dc
- ABB S400 1-Pole Type B Type D 400V ac AC, 250 V dc
- ABB S400 1-Pole Type B Type D 400V ac AC, 250 V dc
- ABB S400 1-Pole Type B Type K 400V ac AC, 250 V dc
- ABB S400 3-Pole Type B Type K 400V ac AC, 250 V dc
- ABB S400 3-Pole Type D Type C 400V ac AC, 250 V dc
- ABB S400 3-Pole Type B Type D 400V ac AC, 250 V dc