Add-On-Switches contain one single-pole doublethrow contact rated 4 amperes resistive and 1 ampere inductive at 250V AC maximum. Two versions of the Add-On-Switch are available. Catalog number AOS-S has screw terminals. Catalog number AOS-Q accommodates push-on connectors. …more

The new “IL” indicator, provides a blown fuse indication system which does not sacrifice the excellent I2t characteristics of Ferraz fuses. Its low voltage design requires just 0.9 volts to activate the indicator, thus insuring reliable fuse performance under all conditions. The red pop up button is located in the center of the fuse body for ease of visibility and optimum voltage …more

Microswitch systems for round and square body fuses (not for PSC Fuses) …more

Microswitch systems adapted to the following fuses: - PSC sizes 30, 31, 32, 33 / 70, 71, 72, 73 - Blade-type PSC (PA) sizes 0-1, 2-3 / 70, 71, 72, 73 - PSC sizes 000 / 00 …more

The Shawmut Trigger Indicator is a field-mountable blown-fuse indicator which is wired parallel with the fuse to be monitored. The striker pin exerts a static force of one pound and be used to actuate a switch. It is available in 130 volt (TI-130), 600 volt (TI-600), and 1500 (TI-1500) ratings. The TI-600 Trigger is a UL Listed accessory. The Shawmut Trigger is not fuse and should only be used in …more

The Trigger Actuator (catalog number suffix TA) has two functions and is an option available on many Amp-trap fuses. First, it provides visual indication of an open fuse and second, it provides a mount for an Add-On-Switch (AOS-) which can indicate a blown fuse via a signal light or initiate appropriate control action. The Trigger Actuator has no measurable I2t or arc voltage effect on fuses r …more

The Trigger Indicator (Catalog Number suffix 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. …more