Fused Disconnect

Fused Disconnects and Switch Fuses

Switch fuses combine isolation and fuse protection in one operating mechanism, commonly used as incomers and motor-circuit isolators. We stock the ABB OS range of front-operated switch fuses from 32 A to 800 A for DIN and BS88 fuse links, in 3- and 4-pole versions with door-coupling handles.

Filter by current rating, fuse size and poles. For non-fused isolation see Switch Disconnect; for busbar-mounted fuse switches see Busbar Systems.

Showing 773 products

Product Key Specs Price Qty Stock Actions
1SCA114766R1001 ABB OSS160GG1S/3 TERMINAL SHROUD ABB OSS160GG1S/3 short-type snap-on terminal shroud for compatible three-pole OS100, OS125, OS160, OSM100, OSM125 and…
1SCA114766R1001 ABB OSS160GG1S/3 TERMINAL SHROUD ABB OSS160GG1S/3 short-type snap-on terminal shroud for compatible three-pole OS100, OS125, OS160, OSM100, OSM125 and…
  • Accessory
£8.97 ex. VAT
In Stock Available for delivery
SKU: OSS160GG1S/3
Switch fuse,Front Operated,3-Poles,British Standard,100A ABB OS100GB03K front-operated 3-pole 100A switch fuse disconnector for British Standard A2, A3 and A4…
Switch fuse,Front Operated,3-Poles,British Standard,100A ABB OS100GB03K front-operated 3-pole 100A switch fuse disconnector for British Standard A2, A3 and A4…
  • Fuse switch disconnector · 100 A · 3-pole
£201.10 ex. VAT
In Stock Available for delivery
SKU: 1SCA116747R1001
MERSEN FUSE Fourth pole for M125 switches 4P125 Mersen 4P125 fourth-pole accessory for compatible M100U3 and M125E3 disconnect switches, rated at 100 A…
MERSEN FUSE Fourth pole for M125 switches 4P125 Mersen 4P125 fourth-pole accessory for compatible M100U3 and M125E3 disconnect switches, rated at 100 A…
  • Accessory · 600 V
£30.92 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P125
MERSEN FUSE Neutral pole for M1250switches 4P1250 Mersen 4P1250 neutral-pole accessory for compatible M1250 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
MERSEN FUSE Neutral pole for M1250switches 4P1250 Mersen 4P1250 neutral-pole accessory for compatible M1250 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
  • Accessory
£618.24 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P1250
MERSEN FUSE Neutral pole for M1600switches 4P1600 Mersen 4P1600 neutral-pole accessory for compatible M1600 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
MERSEN FUSE Neutral pole for M1600switches 4P1600 Mersen 4P1600 neutral-pole accessory for compatible M1600 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
  • Accessory
£721.30 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P1600
MERSEN FUSE Neutral pole for M250 switches 4P250 Mersen 4P250 neutral-pole accessory for compatible M250 non-fusible disconnect switches, enabling coordinated four-pole isolation of…
MERSEN FUSE Neutral pole for M250 switches 4P250 Mersen 4P250 neutral-pole accessory for compatible M250 non-fusible disconnect switches, enabling coordinated four-pole isolation of…
  • Accessory
£61.85 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P250
MERSEN FUSE Neutral pole for M2500switches 4P2500 Mersen 4P2500 neutral-pole accessory for compatible M2500 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
MERSEN FUSE Neutral pole for M2500switches 4P2500 Mersen 4P2500 neutral-pole accessory for compatible M2500 UL 98 non-fusible disconnect switches, enabling coordinated four-pole…
  • Accessory
£1,236.48 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P2500
MERSEN FUSE Fourth pole for M40 switches 4P40 Mersen 4P40 fourth-pole accessory for compatible M163, M253 and M403 disconnect switches, rated at 40…
MERSEN FUSE Fourth pole for M40 switches 4P40 Mersen 4P40 fourth-pole accessory for compatible M163, M253 and M403 disconnect switches, rated at 40…
  • Accessory · 600 V
£15.47 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P40
MERSEN FUSE Neutral pole for M400 switches 4P400 Mersen 4P400 genuine fourth pole accessory designed for compatible 400 A disconnect switches, enabling four-pole…
MERSEN FUSE Neutral pole for M400 switches 4P400 Mersen 4P400 genuine fourth pole accessory designed for compatible 400 A disconnect switches, enabling four-pole…
  • Accessory
£103.07 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P400
MERSEN FUSE Fourth pole for M80 switches 4P80 Mersen 4P80 genuine fourth pole accessory for compatible 80 A disconnect switches, providing four-pole isolation…
MERSEN FUSE Fourth pole for M80 switches 4P80 Mersen 4P80 genuine fourth pole accessory for compatible 80 A disconnect switches, providing four-pole isolation…
  • Accessory
£25.79 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P80
MERSEN FUSE Neutral pole for M800 switches 4P800 Mersen 4P800 genuine fourth pole accessory for compatible M800 non-fusible disconnect switches, providing four-pole isolation…
MERSEN FUSE Neutral pole for M800 switches 4P800 Mersen 4P800 genuine fourth pole accessory for compatible M800 non-fusible disconnect switches, providing four-pole isolation…
  • Accessory
£164.89 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 4P800
MERSEN FUSE PS 1 20.127 BS B221307 Mersen B221307 PS 1 20.127 BS industrial fuse switch designed for 20 × 127 mm…
MERSEN FUSE PS 1 20.127 BS B221307 Mersen B221307 PS 1 20.127 BS industrial fuse switch designed for 20 × 127 mm…
  • Fuse switch disconnector · 20x127 mm · Base / panel
£84.86 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B221307
LED Controls specialist
● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

  • Priority sourcing and supply support
  • Flexible payment terms for qualifying organisations
  • Support for engineering, maintenance, and operations
500+ Stock lines ready to ship
1,000+ Same day despatches
3500+ Customers supported
28 Trusted Manufacturers

● latest blog

Factory Automation
Insights