User guide
TS 870 TRANSFER SWITCH 
PM062 REV 5 08/05/05    Thomson Technology 
9.  TRANSFER SWITCH MECHANISM –1000A-1200A, T-STYLE  19 
9.1.  MANUAL OPERATION  19 
10.  RECOMMENDED MAINTENANCE  21 
11.  FRONT VIEW (TYPICAL) 3 / 4 POLE 100A-250A S-STYLE TRANSFER 
MECHANISM  23 
12.  FRONT VIEW (TYPICAL) 3 POLE 400A-800A S-STYLE TRANSFER MECHANISM 
(MECHANISM FRONT COVER REMOVED)  24 
13.  FRONT VIEW (TYPICAL) 3 / 4 POLE 1000A-1200A T-STYLE TRANSFER 
MECHANISM  25 
14.  CONNECTION CONFIGURATION OPTIONS  26 
15.  CABLE TERMINAL INFORMATION  27 
16.  REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES  27 
16.1.  WITHSTAND CURRENT RATINGS (ALL MODELS WITHOUT INTEGRAL 
OVERCURRENT PROTECTION OPTION)  27 
16.2.  INTERRUPTING CAPACITY CURRENT RATINGS (ALL MODELS WITH INTEGRAL 
OVERCURRENT PROTECTION OPTION)  28 
17.  GROUND FAULT SITE TEST REQUIREMENTS  28 
17.1.  PERFORMANCE TEST  28 
18.  TROUBLESHOOTING  30 
19.  REPLACEMENT PARTS  32 
20.  PRODUCT RETURN POLICY  33 
21.  NOTES  34 
22.  PERFORMANCE TEST FORM  35 










