Specification Bulletin 682-31 - S&C Electric Company

S&C Remote Supervisory Vista® Underground Distribution SwitchgearOPTIONAL FEATURES—ContinuedItem600-A Bushings Without Studs, at load-interrupter switch and bus terminals(in lieu of standard 600-A bushings with studs)600-A1 Bushings Without Studs, at load-interrupter switch, fault interrupter,and bus terminals (in lieu of standard 600-A1 bushings with studs)Suffix tobe Added toSwitchgearCatalog Number-M1Applicable to ModelsAll models rated 12.5 kAAll models rated 25 kA600-A Bushings, at fault-interrupter terminals(in lieu of 200-A bushing wells)Without studs -M2With studs -M3All models rated 12.5 kA exceptModels 210, 320, 330, and 440200-A Bushing Wells at load-interrupter switch and bus terminals(in lieu of 600-A bushings with studs)Arc Resistance for Vault-Mounted Style (arc resistance is standard for Pad-Mounted andUnderCover Styles), per IEC 298 Appendix AA, for arcs occurring internal to the tank(15 cycles, 12 kA symmetrical for 12.5 kA-rated models and 15 cycles, 25 kA symmetricalfor 25 kA-rated models)Two-Hole Ground Pads, one per way, located below bushings or bushing wells(in lieu of standard one ground pad per tank)Remote Low-Pressure Alarm—includesinternal contact for remote low-pressureindication, with wiring to outside of tankExternal Trip Provisions. Allows three-poletripping of single-pole or three-pole faultinterrupters via a trip signal from a remotelocation or an external relay. Requiresa 110/120-Vac 50/60-Hz control powersource23External Trip Provisions. Allows three-poletripping of single-pole or three-pole faultinterrupters via a trip signal from a remotelocation or an external relay. Requiresa 220/240-Vac 50/60-Hz control powersource23With wires routed to low-voltage enclosure/compartment for future customer connectionsWith wires terminated in an enclosurefurnished with a terminal block for customerconnectionsIn addition to standard overcurrent controlfor all fault interruptersIn lieu of standard overcurrent control andcurrent transformers for all fault interruptersIn addition to standard overcurrent controlfor all fault interruptersIn lieu of standard overcurrent control andcurrent transformers for all fault interrupters-M4-N-O All modelsCopper Bus4 -Z5 All models1 Bushings are rated 900 amperes on ways furnished with 900-ampereload-interrupter switches (Catalog Number Suffix “-K1” through “-K6”)and/or 900-ampere fault interrupters (Catalog Number Suffix “-Q1”through “-Q6”).2 The user-supplied trip-initiating signal must be a momentary contact.Refer to the nearest S&C Sales Office if an application requires the useof a latching contact.3 The external trip board can be powered by a user-supplied 120-Vac50/60-Hz control power source, 120 Vac 50/60 Hz supplied by a voltage-R11-R12-R2-R31-R32-R41-R42-R33-R34-R43-R44All models rated 12.5 kA exceptModel 201dAll models with CatalogNumber Suffix “-V3” or “-V4”All Pad-Mounted and Dry-Vault-Mounted StylesAll UnderCover and Wet-Vault-Mounted StylesAll Pad-Mounted and Dry-Vault-Mounted StylesAll Pad-Mounted and Dry-Vault-Mounted StylesAll UnderCover and Wet-Vault-Mounted StylesAll Pad-Mounted and Dry-Vault-Mounted StylesAll UnderCover and Wet-Vault-Mounted StylesAll Pad-Mounted and Dry-Vault-Mounted StylesAll UnderCover and Wet-Vault-Mounted StylesAll Pad-Mounted and Dry-Vault-Mounted StylesAll UnderCover and Wet-Vault-Mounted Stylestransformer internal to the tank (option suffix “-Y4”), or 36 Vdc suppliedby the battery charger.4 Main bus can be rated up to 1200 amperes when Catalog NumberSuffix “-Z5” is specified.d Model 201 is furnished with 200-ampere bushing wells at bus terminalsas standard.14 S&C Specification Bulletin 682-31