Blown Fuse Indicators

The Trigger Indicator (TI) is available on many blade type fuses, primarily Form 101 semiconductor fuses and some Class L fuses. The TI allows blown fuses to be identified visually, eliminating the need for resistance or continuity testing.
It is a field-mountable blown-fuse indicator that is wired in parallel with the fuse to be monitored. The striker pin exerts a static force of one pound and may be used to actuate a switch. It is available in 130, 600, and 1500-volt ratings. The 600V version is a UL Listed accessory. The Trigger Indicator is not a fuse though and should only be used in parallel with fuses rated 70A or higher. To mount the Trigger Indicator, use two midget fuse clips (for 13/32" diameter fuses) found in the Fuse Clip section.
Features:
- Visual Indication or Remote Signaling
- Optional Auxiliary Microswitches
- Same Size for All Fuses
- Retains Optimum Performance
- Operation at All Times Above 0.9 Volts
- Low Voltage Design
- Center Location
- Rugged Construction
- Proven Reliability
- AC or DC
- UL Recognized
Applications:
- Any circuit where visual or relay indication is required
Brands:
- Ferraz Shawmut