A30QS Series / 300V
The A30QS Series / 300V is part of the Mersen (formerly Ferraz Shawmut) semiconductor fuses line, distributed by Gross Automation.

A30QS Amp-trap® Semiconductor Protection fuses areintended for the protection of Power Semiconductorssuch as Diodes, Phase Control SCR's and other power Semiconductor devices. The A30QS isrecommended fornew applications providing solutions for your criticalprotection needs at 300V and less semiconductors.
Specifications
| Specification | Value |
|---|---|
| Ratings | AC: 300VAC, 1A to 4500A, 200kA I.R.; AC: 300VDC, 1A to 4500A, 100kA I.R.; UL Recognized Component; Guide JFHR2; Some Ratings RoHS Compliant; Protection of AC/DC drives, UPS and other equipment of 300 volts or less |
| Features | Choice of mounting types helps in equipment design; Fast Acting; Current Limiting; Indicator options available; Superior DC capabilities |
Features
- Choice of mounting types helps in equipment design
- Fast Acting
- Current Limiting
- Indicator options available
- Superior DC capabilities
Ratings
- AC: 300VAC, 1A to 4500A, 200kA I.R.
- AC: 300VDC, 1A to 4500A, 100kA I.R.
- UL Recognized Component
- Guide JFHR2
- Some Ratings RoHS Compliant
- Protection of AC/DC drives, UPS and other equipment of 300 volts or less
Catalog Numbers
How to choose
Each catalog number is one fuse; the number spells out its choices:
- Amps: the Amps column (the number after A30QS).
- Mounting: -1 is a ferrule fuse; -4 has bolt-in blades; -128 is a bolt-in hockey puck.
- Indicator: TI at the end adds a trigger indicator, IL a trigger actuator (integral blown-fuse indicators).
Reading a number: A30QS600-4TI is rated 300 V, 600 A, bolt-in blades, with trigger indicator.
Source: Mersen A30QS catalog (PDF), catalog numbering system on page 1
| Amps | Catalog Number |
|---|---|
| 1 | A30QS1-1+ |
| 2 | A30QS2-1+ |
| 3 | A30QS3-1+ |
| 4 | A30QS4-1+ |
| 5 | A30QS5-1+ |
| 6 | A30QS6-1+ |
| 7 | A30QS7-1+ |
| 8 | A30QS8-1+ |
| 10 | A30QS10-1+ |
| 12 | A30QS12-1+ |
| 15 | A30QS15-1+ |
| 20 | A30QS20-1+ |
| 25 | A30QS25-1+ |
| 30 | A30QS30-1+ |
| 35 | A30QS35-4+ |
| 40 | A30QS40-4+ |
| 50 | A30QS50-4+ |
| 60 | A30QS60-4+ |
| 70 | A30QS70-4+ |
| 70 | A30QS70-4IL+ |
| 80 | A30QS80-4+ |
| 80 | A30QS80-4IL+ |
| 90 | A30QS90-4+ |
| 90 | A30QS90-4IL+ |
| 100 | A30QS100-4+ |
| 100 | A30QS100-4IL+ |
| 100 | A30QS100-4TI+ |
| 125 | A30QS125-4+ |
| 125 | A30QS125-4IL+ |
| 130 | A30QS130-4+ |
| 130 | A30QS130-4IL+ |
| 150 | A30QS150-4+ |
| 150 | A30QS150-4IL+ |
| 150 | A30QS150-4TI+ |
| 175 | A30QS175-4+ |
| 175 | A30QS175-4IL+ |
| 200 | A30QS200-4+ |
| 200 | A30QS200-4IL+ |
| 200 | A30QS200-4TI+ |
| 225 | A30QS225-4+ |
| 225 | A30QS225-4IL+ |
| 250 | A30QS250-4+ |
| 250 | A30QS250-4IL+ |
| 250 | A30QS250-4TI+ |
| 275 | A30QS275-4+ |
| 275 | A30QS275-4IL+ |
| 300 | A30QS300-4+ |
| 300 | A30QS300-4IL+ |
| 300 | A30QS300-4TI+ |
| 350 | A30QS350-4+ |
| 350 | A30QS350-4IL+ |
| 400 | A30QS400-4+ |
| 400 | A30QS400-4IL+ |
| 400 | A30QS400-4TI+ |
| 450 | A30QS450-4+ |
| 450 | A30QS450-4IL+ |
| 500 | A30QS500-4+ |
| 500 | A30QS500-4IL+ |
| 500 | A30QS500-4TI+ |
| 550 | A30QS550-4+ |
| 550 | A30QS550-4IL+ |
| 600 | A30QS600-4+ |
| 600 | A30QS600-4IL+ |
| 600 | A30QS600-4TI+ |
| 700 | A30QS700-4+ |
| 700 | A30QS700-4IL+ |
| 700 | A30QS700-128+ |
| 700 | A30QS700-128IL+ |
| 800 | A30QS800-4+ |
| 800 | A30QS800-4IL+ |
| 800 | A30QS800-128+ |
| 800 | A30QS800-128IL+ |
| 900 | A30QS900-128+ |
| 900 | A30QS900-128IL+ |
| 1000 | A30QS1000-128+ |
| 1000 | A30QS1000-128IL+ |
| 1200 | A30QS1200-128+ |
| 1200 | A30QS1200-128IL+ |
| 1500 | A30QS1500-128+ |
| 1500 | A30QS1500-128IL+ |
| 1600 | A30QS1600-128+ |
| 1600 | A30QS1600-128IL+ |
| 1800 | A30QS1800-128+ |
| 1800 | A30QS1800-128IL+ |
| 2000 | A30QS2000-128+ |
| 2000 | A30QS2000-128IL+ |
| 2500 | A30QS2500-128+ |
| 2500 | A30QS2500-128IL+ |
| 3000 | A30QS3000-128+ |
| 3000 | A30QS3000-128IL+ |
| 3500 | A30QS3500-128+ |
| 3500 | A30QS3500-128IL+ |
| 4000 | A30QS4000-128+ |
| 4000 | A30QS4000-128IL+ |
| 4500 | A30QS4500-128+ |
| 4500 | A30QS4500-128IL+ |