Eaton 20A Tag Fuse 31 x 131 mm 415V
- RS Stock No.:
- 251-345
- Mfr. Part No.:
- 20MJ31-8
- Brand:
- Eaton
Subtotal (1 pack of 10 units)*
£378.40
(exc. VAT)
£454.08
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 16 December 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Pack(s) | Per Pack | Per unit* |
|---|---|---|
| 1 + | £378.40 | £37.84 |
*price indicative
- RS Stock No.:
- 251-345
- Mfr. Part No.:
- 20MJ31-8
- 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 | 20A | |
| Product Type | Tag Fuse | |
| Fuse Size | 31 x 131 mm | |
| Voltage | 415V | |
| Standards/Approvals | RoHS, CE, BS, IEC 60269 | |
| Application Category | gU | |
| Fuse Speed | gU | |
| High Rupture Capacity | Yes | |
| Overall Length | 160mm | |
| Length | 160mm | |
| Width | 140mm | |
| Height | 65mm | |
| Series | Bussmann | |
| Select all | ||
|---|---|---|
Brand Eaton | ||
Current Rating 20A | ||
Product Type Tag Fuse | ||
Fuse Size 31 x 131 mm | ||
Voltage 415V | ||
Standards/Approvals RoHS, CE, BS, IEC 60269 | ||
Application Category gU | ||
Fuse Speed gU | ||
High Rupture Capacity Yes | ||
Overall Length 160mm | ||
Length 160mm | ||
Width 140mm | ||
Height 65mm | ||
Series Bussmann | ||
Eaton Tag Fuse, 20A Current Rating, 415V Voltage - 20MJ31-8
This tag fuse is designed to protect electrical circuits in industrial installations by interrupting fault currents and preventing equipment damage. It is intended for use in systems operating at standard industrial voltages and in environments requiring high interrupting capability. The product conforms to recognised European and British standards and is suitable for applications where a robust, replaceable fuse element is needed.
Features and Benefits:
• 20A current rating for defined overcurrent protection
• gU operating characteristic for general-purpose interruption
• High rupture capacity to clear high fault currents safely
• Rated at 415V for common three-phase systems
• Complies with IEC 60269 to match industry protection protocols
• gU operating characteristic for general-purpose interruption
• High rupture capacity to clear high fault currents safely
• Rated at 415V for common three-phase systems
• Complies with IEC 60269 to match industry protection protocols
Applications
• Suitable for motor protection in manufacturing plants
• Ideal for distribution boards in commercial installations
• Used with control panels in automation systems
• Can be used for protection of transformers and feeders
• Ideal for distribution boards in commercial installations
• Used with control panels in automation systems
• Can be used for protection of transformers and feeders
What physical form factor should I allow for installation?
The fuse uses a tag-style mount with an overall length of 160mm, requiring clearance for the tag connection and replacement access.
Which standards ensure it meets European and British requirements?
It is produced to meet IEC 60269 and carries approvals aligned with British and CE conformity frameworks as well as RoHS material restrictions.
How does the fuse speed affect coordination with downstream devices?
The gU characteristic provides a general-purpose time–current response suitable for coordination where a balance of fast clearing and selectivity is required.
Is this suitable for use where high fault levels are present?
Yes, the high rupture capacity rating means it is capable of interrupting substantial fault currents commonly encountered in industrial networks.
What physical footprint should be expected for panel layout planning?
The fuse element size is 31 x 131mm, which determines the holder and panel cut-out dimensions needed for installation.
Related links
- Eaton 50 A Tag Fuse 31 x 131 mm 415 V
- Eaton 32 A Tag Fuse 31 x 131 mm 415 V
- Eaton 250 A Tag Fuse 31 x 131 mm 415 V
- Eaton 125 A Tag Fuse 31 x 131 mm 415 V
- Eaton 80 A Tag Fuse 31 x 131 mm 415 V, 92 mm
- Eaton 160 A Tag Fuse 31 x 131 mm 415 V, 92 mm
- Eaton 450 A Tag Fuse 49 x 131 mm 415 V
- Eaton 355 A Tag Fuse 38 x 131 mm 415 V, 92 mm
