WET SUITS 



293 



The ac power-control box is identical in design to the battery-pack control box, with the 

 exception of the power-input connector. The power cable plugs into an Electro-Oceanics 

 51E4M bulkhead connector. Figure 115 shows the circuit schematic of the ac power-control 

 box. The power options with the ac control are different from those in the battery-pack con- 

 trol. This difference arises from series-parallel switching the suit-circuit resistances rather 

 than the supply voltage. The cable resistance is an integral part of the circuit. The method of 

 switching suit-circuit resistances is shown in the schematic in Fig. 115. 



HEATED SUIT 



CONTROL BOX 



Fig. 115. Schematic diagram of electrically 

 heated v/et suit ac power control circuit 



The list of components shown in Fig. 115 is given below. 

 CB Circuit breaker 



T J 0-125 vac variac 



T 2 115V/24 V transformer, 50 amps 



0-50 VAC voltmeter 



0-50 AMP ammeter 



30 a, 32 V fuses 



Cannon MS3102R-16-11S receptacle 



Cannon Ms3106R-16-llP plug/CA45161 strain relief 



M, 



M, 



F F 



1 ' 2 



