Metal Fuse Switch 100A with 3 × Fuses & SPD (WFMS100/3FSP)
The WFMS100/3FSP is a metal switch-fuse unit with a 100A main switch and surge protection for installations requiring a fused supply to downstream equipment. Its IP40 enclosure has a polyester powder coating and top and bottom cable-entry knockouts.Supplied with 63A, 80A and 100A cartridge fuse links, giving the installer a...
Read full descriptionThe WFMS100/3FSP is a metal switch-fuse unit with a 100A main switch and surge protection for installations requiring a fused supply to downstream equipment. Its IP40 enclosure has a polyester powder coating and top and bottom cable-entry knockouts.
Supplied with 63A, 80A and 100A cartridge fuse links, giving the installer a choice of rating to match the circuit design. The supplied fuse pack does not mean this is a three-phase unit.
- 100A main switch
- 22 × 58mm cartridge fuse holder
- SPD included
- Dimensions: 160 × 240 × 112mm (W × H × D)
- IP40 metal enclosure
- 25mm and 32mm knockouts on the top and bottom faces
Confirm the fitted SPD model and performance ratings against the installation requirements before selecting the unit.
Compare the WFMS range
| Model | Main equipment | Fuse pack / selection | Dimensions W × H × D |
|---|---|---|---|
| WFMS100 | 100A twin-pole main switch; 22 × 58mm fuse holder | Base unit; ask about the required fuse link | 130 × 238 × 87mm |
| WFMS100/3F | 100A twin-pole main switch; 22 × 58mm fuse holder | 63A, 80A and 100A fuse links supplied | 130 × 238 × 87mm |
| WFMS100/3FSP | 100A main switch; fuse holder; SPD | 63A, 80A and 100A fuse links supplied | 160 × 240 × 112mm |
| WFMS/3P | 125A four-pole main switch; three-pole fuse holder | Three-phase version; confirm fuse links required | 240 × 380 × 90mm |
| WFMSRT00-3F | Time-delayed RCD; fuse holder | 63A, 80A and 100A fuse links supplied; confirm RCD specification | 130 × 238 × 87mm |
The three supplied fuse ratings are selection options, not a statement that three fuse positions are fitted. Match the chosen fuse to the holder, cable and circuit design.
Images may show another configuration in the range. Select by the product code and listed contents.
What does the 100A rating refer to?
It is the main-switch rating. The fuse, fuse holder, cable and circuit design determine the permitted protected load.
Which fuse links are included?
The supplied pack contains 63A, 80A and 100A links for selection to suit the installation.
Does it include an SPD?
Yes. Please contact Power & Data UK if you need the exact SPD model, classification or performance ratings for your design.
Is this the three-phase version?
For the version specifically listed with a four-pole main switch and three-pole fuse holder, see WFMS/3P. A pack of three fuse links does not establish three-phase suitability.
Can it be installed outdoors?
The enclosure is rated IP40. Select an enclosure and complete assembly suitable for the installation environment; this is not a weatherproof outdoor enclosure.
| Product code | WFMS100/3FSP |
|---|---|
| Main switch | 100A |
| Fuse holder | 22 × 58mm cartridge format |
| Fuse links supplied | 63A, 80A and 100A |
| Surge protection | SPD included; confirm the fitted device specification |
| Dimensions (W × H × D) | 160 × 240 × 112mm |
| Enclosure | Metal with polyester powder coating |
| Ingress protection | IP40 |
| Cable entries | 25mm and 32mm circular knockouts on the top and bottom faces |
Installation and commissioning should be carried out by a qualified electrician using the instructions for the supplied assembly and fitted devices. Select fuse links for the circuit load, cable protection, holder rating and prospective fault current. Check terminal torque and enclosure earthing against the supplied instructions.
Use the designated isolation device before accessing the fuse holder. The fuse holder itself must not be used as a switch disconnector.
