UltraSafe™ USM - Midget Fuse Holders
Mersen USM Series UltraSafe Modular Fuse holders introduce a new level of safety for Midget 1-1/2" x 13/32" AC and DC-rated fuses up to 30 amperes. UltraSafe holders qualify as “Finger-safe” under IEC and DIN standards to an IP20 grade of protection, including fuse changing (with the flick of a finger). UltraSafe holders are available in 1, 2, 3 or 4 poles, with or without visual blown-fuse indicators in each pole. Multipole units can also be field assembled by ordering pin-tie handles. UltraSafe holders save up to 15% mounting space and any combination can be snapped onto 35mm DIN-rail for extra savings in panel building time. UltraSafe body material is tough and durable polyamide, with exceptional insulating properties.
Mersen USM Series UltraSafe Modular Fuse holders introduce a new level of safety for Midget 1-1/2" x 13/32" AC and DC-rated fuses up to 30 amperes. UltraSafe holders qualify as “Finger-safe” under IEC and DIN standards to an IP20 grade of protection, including fuse changing (with the flick of a finger). UltraSafe holders are available in 1, 2, 3 or 4 poles, with or without visual blown-fuse indicators in each pole. Multipole units can also be field assembled by ordering pin-tie handles. UltraSafe holders save up to 15% mounting space and any combination can be snapped onto 35mm DIN-rail for extra savings in panel building time. UltraSafe body material is tough and durable polyamide, with exceptional insulating properties.
Product data sheets
- DS-USM-Midget-Mersen-EN
pdf - 455.37 KB
Compliance
- COM-CE190315006178-A1-USM-USGM-Fuse-Holder
pdf - 107.23 KB
- COM-CE190304006388-A1-USM-USGM-Fuse-Disconnector
pdf - 110 KB
- R0HS3 letter 02FEB21 USM USCC USGCC
pdf - 146.5 KB
- REACH letter 02FEB22 USM USCC USGCC
pdf - 221.88 KB
Key features & benefits
IP20 Finger-Safe (touch safe)
Optional visual blown fuse Indicator lights
DIN-rail mounting
Compact footprint
Quick, tool-free, easy fuse change outs
USM use with: ATQ, ATM, A6Y-2B, A25Z-2, TRM, OTM, A13X-2, A60Q-2, DCT, HP6M, HP10M
Applications
All circuits up to 600 volts for motors, control circuits, transformers, etc…
DC circuits up to 1000VDC including photovoltaic applications
Non-load disconnect
| Frequency (Hz) | 50/60 Hz |
| Amperage Range | 0 to 30 A |
| Fuse Class | Midget |
| Short Circuit Current Rating (SCCR) | 100 kA |
| Flammability Rating | 94 V-0 |
| UL Category Code | IZLT2 |
| CSA File Number | Class 6225, File 032169_0_000 |
| Reach Compliant | Yes |
| Max Operating Temp. | 80 °C |
| Max Storage Temp. | 80 °C |
| Min Storage Temp. | -25 °C |
| Harmonized System | 853690 |
| UL File Number | File E52283 |
| Degree of Protection (IP) | IP20 |
Reference Finder
Scroll
| Item number | Ampere rating | Fuse size | Fuse Type/Class | Number of poles | Indication System | Product weight |
|---|---|---|---|---|---|---|
|
USM3N See product
|
30A | - | Midget | 3-Pole+N | No | 0.195kg |
|
USM4 See product
|
30A | - | Midget | 4-Pole | No | 0.254kg |
|
USM4I See product
|
30A | - | Midget | 4-Pole | Yes | 0.254kg |
|
USN See product
|
30A | - | Midget | N | No | 0.0635kg |
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