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Indicating Fuse Arming Systems

Indicating fuses are similar to regular cartridge fuses used in electrical service panel boxes. However, when they blow, they offer a visual indication of which fuse on the panel has blown; frequently their design makes a spring-loaded pin pop out when an overload situation occurs, and this pin may in turn press against and close a switch linked to a numbered trouble light on a service panel.

These types of fuses have been adapted by bombers as arming and firing devices. The British Post Office fuse is a slightly different configuration of fuse, regularly used by the Provisional Irish republican Army in certain bombs targeting British police and military personnel.

Securesearch, Inc. makes several different inert IED training aids that are either armed or detonated by the action of the spring-loaded pin of an indicating fuse.

Indicating Fuse Arming Systems

INDICATING FUSE IED
Order Sku: ITA-128
Indicating fuse IED. Initiated by operation of indicating fuse plunger. Plunger pops out when the circuit it is inserted into overheats or shorts out. The force of the moving plunger can be used to close a second circuit, firing a device. This version is used only with 120 volts alternating current (A.C.). Extra fuses are supplied with this training model.

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INDICATING FUSE ARMING DEVICE IED
Order Sku: ITA-129
Indicating fuse arming device IED. This device is so designed that it remains safe until armed by the indicating fuse arming device. The plunger in the fuse, when shorted out, pops outward from the end or side of the fuse and acts on a microswitch, arming a second circuit n the IED. This circuit has its own method of initiating which now comes into play.

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BAROMETRIC ARMING / INITIATING DEVICE
Order Sku: ITA-142
Barometric arming/Initiating Device.
First barometer arms the device by triggering an indicating fuse. At later change of air pressure, second barometer initiates a detonator.

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CLOCKWORK INDICATING FUSE
Order Sku: ITA-92
Clockwork indicating fuse, an indicating fuse is a power limited device which cuts the flow of electricity when overloaded. It contains a spring loaded pin which pops out when the fuse “blows”. This fuse will trigger the detonator (see ITA-128 & ITA-129 - in the related product tab below). Works with moving hands of alarm clock. Request a quote for this custom tailored product which can be designed for your training requirements. It includes our best price guarantee.

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