Eaton 250A Tag Fuse 31 x 131 mm 690V
- RS Stock No.:
- 254-763
- Mfr. Part No.:
- 250NHM2B-690
- Brand:
- Eaton
Subtotal (1 pack of 3 units)*
£61.70
(exc. VAT)
£74.04
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 02 November 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Pack(s) | Per Pack | Per unit* |
|---|---|---|
| 1 + | £61.70 | £20.567 |
*price indicative
- RS Stock No.:
- 254-763
- Mfr. Part No.:
- 250NHM2B-690
- Brand:
- Eaton
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Eaton | |
| Current Rating | 250A | |
| Product Type | Tag Fuse | |
| Fuse Size | 31 x 131 mm | |
| Voltage | 690V | |
| Standards/Approvals | IEC 60269-1, IEC 60269-2, DIN 43620 | |
| Application Category | Industrial | |
| High Rupture Capacity | Yes | |
| Length | 150mm | |
| Height | 71mm | |
| Width | 54mm | |
| Series | Bussmann | |
| Select all | ||
|---|---|---|
Brand Eaton | ||
Current Rating 250A | ||
Product Type Tag Fuse | ||
Fuse Size 31 x 131 mm | ||
Voltage 690V | ||
Standards/Approvals IEC 60269-1, IEC 60269-2, DIN 43620 | ||
Application Category Industrial | ||
High Rupture Capacity Yes | ||
Length 150mm | ||
Height 71mm | ||
Width 54mm | ||
Series Bussmann | ||
RoHS Status: Exempt
- COO (Country of Origin):
- IN
Eaton Tag Fuse, 250A Current Rating, 690V Voltage - 250NHM2B-690
This tag fuse is a high-current protective device designed for industrial electrical systems, intended to interrupt overcurrents and protect downstream equipment in three-phase and heavy-duty installations. It is constructed to function at elevated voltages and integrate with standard NH fuse holders used in panel and switchgear environments.
Features and Benefits:
• 250A rating delivers secure protection for high-current circuits
• AM time characteristic provides protection for motor and general loads
• 690V capability supports use in medium-voltage distribution
• High rupturing capacity limits fault energy during short-circuits
• NH2 size ensures compatibility with NH2 holder systems
• AM time characteristic provides protection for motor and general loads
• 690V capability supports use in medium-voltage distribution
• High rupturing capacity limits fault energy during short-circuits
• NH2 size ensures compatibility with NH2 holder systems
Applications
• Suitable for motor control and starter protection in industrial plants
• Ideal for distribution boards in factories and process facilities
• Used with NH2 switchgear in automation control panels
• Can be used for protection of transformers and feeders in electrical rooms
• Ideal for distribution boards in factories and process facilities
• Used with NH2 switchgear in automation control panels
• Can be used for protection of transformers and feeders in electrical rooms
What standards govern its construction and testing?
It is manufactured to recognised European and international fuse standards including IEC 60269‑1 and IEC 60269‑2 and aligns with DIN 43620 dimensional conventions for interchangeability.
What physical form factor should installers expect?
The unit conforms to an NH2 format with a Compact profile suitable for NH-type holders and has a length of 150mm to fit standard NH fuse assemblies.
How does its speed rating affect coordination with downstream devices?
The AM characteristic offers moderate time-delay behaviour allowing short-duration inrush currents, such as motor starts, while providing discrimination against sustained overloads.
Is it suitable for systems requiring high fault interruption capability?
Yes, the device is specified with a high rupturing capacity to safely interrupt high prospective fault currents common in industrial distribution.
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