Eaton 125A F Melamine Cartridge Fuse, 42 x 83 mm

Bulk discount available

Subtotal (1 unit)*

£95.47

(exc. VAT)

£114.56

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 03 August 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units
Per unit
1 - 4£95.47
5 - 24£88.78
25 - 49£83.05
50 - 99£77.90
100 +£73.44

*price indicative

RS Stock No.:
848-4116
Mfr. Part No.:
JJS-125
Brand:
Eaton
Find similar products by selecting one or more attributes.
Select all

Brand

Eaton

Current Rating

125A

Product Type

Cartridge Fuse

Fuse Size

42 x 83 mm

Fuse Speed

F

Voltage

600V ac

Overall Length

83mm

Body Material

Melamine

Fuse Characteristics

Fast Acting

Series

JJS

Diameter

42mm

Standards/Approvals

UL 248-15

Non Compliant

Eaton JJS Series Cartridge Fuse, 125A Current Rating, 600V AC Voltage - JJS-125


This cartridge fuse provides fast-acting overcurrent protection for industrial electrical systems, designed to interrupt fault currents in alternating-current circuits up to medium-voltage levels. It is intended for use where prompt clearance of short circuits is required to protect downstream components and maintain operational continuity in automation and control equipment.

Features and Benefits:


• Fast-acting element clears faults quickly to minimise equipment exposure
• Rated for 125 A continuous current handling in typical installations
• Operates at 600V AC for use on common distribution voltages
• Melamine insulating body offers stable dielectric performance
• 42mm diameter construction supports standard cartridge holders
• Meets UL 248-15 for recognised electrical performance validation

Applications


• Suitable for protecting motor control panels and drives
• Ideal for industrial automation switchgear and distribution boards
• Used with power conversion and control equipment in factories
• Can be used for replacement in cartridge fuse holders in plants

What fault-clearing behaviour should be expected under short-circuit conditions?


The fuse element is designed to open rapidly under high overcurrent, limiting energy let-through and reducing stress on connected devices during faults.

How does the insulating material affect thermal performance?


The melamine body provides stable insulation and maintains its shape at elevated operating temperatures, aiding consistent thermal dissipation around the fuse element.

Where can this fuse be installed within an electrical distribution layout?


It can be mounted in line-side positions inside fuse cartridges and holders serving feeders, branch circuits or protective inputs to motor starters and transformers.

What verification exists for performance under standardised test conditions?


The device conforms to the UL standard for high-break-capacity cartridge fuses, indicating it has been tested for specified interrupting and endurance characteristics.

Note

Eaton formerly known as Bussmann

Related links