ARMY TM 9-6115-604-12 NAVY NAVFAC P-8-633-12 Table 1-1. System Capacities and Detailed Data on Components (Continued) 9 CONTROLS, INSTRUMENTS, AND SWITCHGEAR (CONTINUED) AMMETER Switch S114 Drawing Number: 80-7414 Voltage Rating: 500 V ac continuous Current Rating: 20 amperes Operating Voltage: 125 V ac Momentary Current (Thermal) : 200 amperes -- 3 seconds 75 amperes -- 30 seconds 60 amperes -- 60 seconds Overload (50 operations) : 95 amperes -- 125 V dc Making Ability for Circuit Breaker Coils: 95 amperes -- 125 V dc Dielectric Strength: 2200 V rms Insulation Resistance: 100 megohms Contact Resistance: 10 milliohms Continuous Rating: 30 amperes 600 V Operating Temperature: -25 to +125°F (-31 to 51°C) Storage Temperature: -65 to +155°F (-53 to 68°C) Humidity Conditions: To 100% Mechanical Characteristics: Silver contact surfaces; double sided, double wiping knife type rotary contacts, round knurled handle indexing 45°, contact material phosphor bronze alloy, terminals copper with silver overlay at contact area with overall silver plate Manufacturer: Electro Switch Corporation Part Number: 2412H FSCM: 82121 GEN/BUS VOLTMETER Switch S112 Drawing Number: 80-7416 Voltage Rating: 500 V ac continuous Current Rating: 20 amperes Operating Voltage: 125 V ac Momentary Current (Thermal): 200 amperes -- 3 seconds 75 amperes -- 30 seconds 60 amperes -- 60 seconds Overload (50 operations): 95 amperes -- 120 V ac Making Ability for Circuit Breaker Coils: 95 amperes -- 125 V dc Dielectric Strength: 2200 V rms Insulation Resistance: 100 megohms Contact Resistance: 10 milliohms Continuous Rating: 30 amperes 600 V Operating Temperature: -25 to +125°F (-31 to 51 C) Storage Temperature: -65 to +1550F (-53 to 68°C) Humidity Conditions: To 100% Mechanical Characteristics: Silver contact surfaces; double sided, double wiping knife type rotary contacts; round knurled handle indexing 45°; contact material phosphor bronze alloy, terminals copper with silver overlay at contact area with overall silver plate 1-36