Compact Fused Switch Class J
The Mersen FS Series is a UL 98 Listed fused disconnect switch designed for branch circuit protection using any UL Listed Class J fuse. Engineered for performance and convenience, the FS Series delivers the high interrupting capacity of Class J fuses (200kA SCCR) in the same footprint of a fuse holder. It occupies less space than a standard fuse holder and traditional disconnect switch combination, enabling more streamlined panel designs and improved off-the-shelf distribution availability when time and convenience matter most. Available in 30A and 60A versions, the FS Series includes lockout/tagout (LOTO) capability and integrated LED fuse status indication.
The Mersen FS Series is a UL 98 Listed fused disconnect switch designed for branch circuit protection using any UL Listed Class J fuse. Engineered for performance and convenience, the FS Series delivers the high interrupting capacity of Class J fuses (200kA SCCR) in the same footprint of a fuse holder. It occupies less space than a standard fuse holder and traditional disconnect switch combination, enabling more streamlined panel designs and improved off-the-shelf distribution availability when time and convenience matter most. Available in 30A and 60A versions, the FS Series includes lockout/tagout (LOTO) capability and integrated LED fuse status indication.
Product data sheets
- DS-Class-J-Fused-Switch-Mersen-EN
pdf - 538.49 KB
Brochures and Flyers
- BR-UL-508A-Panel-Shops-Mersen-EN
pdf - 10.95 MB
- FL-UL-508A-Panel-Mersen-EN
pdf - 2.66 MB
- BR-Space-Saving-Brochure-Mersen-EN
pdf - 4.89 MB
- FL-Data-Centers-Mersen-EN
pdf - 3.21 MB
- FLY-Fused-Switch-Line-Expansion-Mersen-EN
pdf - 1.47 MB
Compliance
- COM-REACH-RE000155-J-Switch-Mersen
pdf - 267.81 KB
- COM-RoHS-RE000155-J-Switch-Mersen
pdf - 263.52 KB
Key features & benefits
Smaller footprint compared to a traditional Class J disconnect
Accepts Class J 30A and 60A fuses for branch circuit protection
35mm DIN rail mounted
Built-in lockout/tagout feature
Integrated LED Fuse status indication
200kA SCCR rating
75°C CU Wire
Factory & Field Wiring
Minimum Indicator Voltage - 90V-AC and 12V-DC
Applications
Industrial control panels
Data centers
Main disconnects
Motor branch circuit protection
Fused Coordination Panels
For use as a motor disconnect, see horsepower rating section
| Short Circuit Current Rating (SCCR) | 200 kA |
| UL Category Code | WHTY |
| Reach Compliant | Yes |
| Max Operating Temp. | 75 °C |
| Min Operating Temp. | -40 °C |
| Harmonized System | 853650 |
| UL File Number | E191605 |
| Degree of Protection (IP) | IP20 |
Reference Finder
Scroll
| Item number | Ampere rating | Fuse Type/Class | Number of poles | Enclosure NEMA Type | Product weight |
|---|---|---|---|---|---|
|
FS30J1 See product
|
- | Class J | 1-Pole | - | 0.2531kg |
|
FS30J2 See product
|
- | Class J | 2-Pole | - | 0.5062kg |
|
FS30J3 See product
|
30A | Class J | 3-Pole | - | 0.7593kg |
|
FS60J1 See product
|
60A | Class J | 1-Pole | - | 0.2712kg |
|
FS60J2 See product
|
60A | Class J | 2-Pole | - | 0.5425kg |
|
FS60J3 See product
|
60A | Class J | 3-Pole | - | 0.8137kg |