Siemens Fuse Switch Disconnector, 3-Pole, 250A
- RS Stock No.:
- 143-421
- Mfr. Part No.:
- 3NP1143-1BC21
- Brand:
- Siemens
Subtotal (1 unit)*
£392.67
(exc. VAT)
£471.20
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 21 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £392.67 |
*price indicative
- RS Stock No.:
- 143-421
- Mfr. Part No.:
- 3NP1143-1BC21
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | Fuse Switch Disconnector | |
| Number of Poles | 3 | |
| Enclosed/Not Enclosed | Not Enclosed | |
| Mount Type | Floor | |
| Electrical Phase | 3 | |
| Switching Voltage | 690V | |
| Switching Current | 250A | |
| Terminal Type | Clamp Terminal | |
| IP Rating | IP40, IP30, IP20 | |
| Mechanical Fuse Size | NH0-NH1 | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | 55°C | |
| Standards/Approvals | UKCA, RoHS, EAC, CE | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Fuse Switch Disconnector | ||
Number of Poles 3 | ||
Enclosed/Not Enclosed Not Enclosed | ||
Mount Type Floor | ||
Electrical Phase 3 | ||
Switching Voltage 690V | ||
Switching Current 250A | ||
Terminal Type Clamp Terminal | ||
IP Rating IP40, IP30, IP20 | ||
Mechanical Fuse Size NH0-NH1 | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature 55°C | ||
Standards/Approvals UKCA, RoHS, EAC, CE | ||
The Siemens 3NP1 Fuse Switch Disconnector is a reliable 3 pole device designed for NH1 fuse types, rated at 250 A. Specifically tailored for the 8US busbar system of 60 mm, it features box terminals for secure connections. This model includes electromechanical fuse monitoring for enhanced safety.
Sealable
Extension auxiliary switch
Locking capability
Overvoltage protection monitoring
Related links
- Siemens Fuse Switch Disconnector 250 A
- Siemens Fuse Switch Disconnector, 3-Pole
- Siemens Fuse Switch Disconnector 160 A
- Siemens Fuse Switch Disconnector 400 A
- Siemens Fuse Switch Disconnector 250 A
- Siemens Fuse Switch Disconnector 160 A, 160 A
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