Contact unit, for an electromagnetic safety relay, comprises an undivided contact spring with a flexible torsion region between its fixed end and its contact points
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Miniature electromagnetic relay e.g. network relay for interface clamp, has separate L-shaped insulator fitted to rectangular body of relay for increasing length of leakage current path
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Electrical circuit arrangement e.g for sequential blasting system used in mining
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Casing for junction in flat cable e.g. trigger stage in blasting system
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Blasting chain with Zener diodes of progressively higher voltage
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Explosive charge chain for mining applications
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Detonating chain
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Insulating part for an electromagnetic relay
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Electromagnetic relay
ZA9203159B
Sequential blasting system
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Explosive chain
EP0487947A2
Electro magnetic relay
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Testing switching function of EM relay - suddenly changing direction of set part of excitation voltage as soon as switch=over occurs
