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