Quality Inspection for Automatic Transfer Switching Equipment-FTQ5 for Madras Manufacturers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Model: FTQ5-125 FTQ5-250 FTQ5-630
Rated current (A): 16,20,25,32,40,50,63,80,100,125 140,160,180,200,250 315,350,400,500,630
Pole: 3,4
Rated operational voltage: AC400V/50Hz
Rated insulation voltage: 800
Rated impulse withstand voltage Uimp(KV): 8
Connecting and breaking capacity: 10Ie
Rated short-time withstand current: 10KA/200ms 10KA/200ms 25KA/200ms
Operating position: Normal power on,backup on,Normal and backup off
Operating transfer time: ≤1.5
Electric class: PC
usage category: AC-33B

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The three hot wires are A, B and C . A 120 volt single phase circuit uses one breaker “space” on this box that is 1 inch wide. A 240 or 208 volt single phase circuit uses two breaker “spaces” on this box. A 240 or 208 volt three phase circuit uses a 3 phase breaker that is 3 inches wide and it uses all phases of A, B and C. A restaurant often is wired a 3 Phase service as 120 volt / 208 volt 3 phase. Big loads like the AC run off the 208 volt 3 phase and use a 3 pole breaker that uses phases A, B and C. The small stuff often use plain single phase 120 volts and each circuit uses one hot phase and the Neutral buss bar.

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