FSM Series / Fast-Acting
The FSM Series / Fast-Acting is part of the Mersen (formerly Ferraz Shawmut) meters line, distributed by Gross Automation.

Ferraz Shawmut has developed a true 1000V AC/DC fuse designed to protect both analog and digital multi-meters. These fuses cover all the industry’s multi-meter requirements in three easy to use amperage ratings. Good for 1000 volts AC and DC, the FSM line of Ferraz Shawmut fuses are designed for the power electronics metering and controls market.
Specifications
| Specification | Value |
|---|---|
| Ratings | AC: 1000VAC; AC: 1000VDC; UL Recognized Component JFHR2.E60314; Multi-meters |
| Features | For the protection of multi-meters; 1000V AC/DC for full range protection; 100% Current Rated for continuous current carrying capability; Glass melamine body and plated terminals superior reliability and performance; Fast-acting; Current-limiting; 1000V AC/DC 10ms; 20,000A Interrupting rating @ 1000V AC/DC for all ratings; (3) Amperage ratings 44/100A, 11A, 15A; UL Recognized Component file E60314 |
Features
- For the protection of multi-meters
- 1000V AC/DC for full range protection
- 100% Current Rated for continuous current carrying capability
- Glass melamine body and plated terminals superior reliability and performance
- Fast-acting
- Current-limiting
- 1000V AC/DC 10ms
- 20,000A Interrupting rating @ 1000V AC/DC for all ratings
- (3) Amperage ratings 44/100A, 11A, 15A
- UL Recognized Component file E60314
Ratings
- AC: 1000VAC
- AC: 1000VDC
- UL Recognized Component JFHR2.E60314
- Multi-meters
Catalog Numbers
| Catalog Number | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 |
|---|---|---|---|---|---|
| 44/100 | FSM44/100 | 11 | FSM11 | 15 | FSM15 |