I.L. 41-758.1F TYPE TR-1 AUXILIARY TRIPPING AND INDICATING RELAY MANUAL – Westinghouse

GEI-23903E POWER CIRCUIT BREAKERS MAGNE-BLAST BREAKER TYPES AM-5-50-4, AM-5-50-5, AND AM-4.16-50-6 WITH MS-9-1 MECHANISM MANUAL – General Electric