JS4 Series
400 A 120/240 V; Single Phase Service

• Load side terminations: tunnel type connectors, dual rated for 1 x 500 kcmil or 2 x 250 kcmil
• Fully wired secondary circuits
• Line side terminations: double 1/2 in. studs to accommodate compression lugs (supplied by utility) for underground service (1 x 500 kcmil or 2 x 250 kcmil)
• Permanent red nameplate affixed to front cover warns that removal of meter does not isolate the load terminals; also notice of automatic circuit closing device on JS4A and warning to short circuit current transformer secondary before removal of meter on JS4B
• Meter socket configuration for 5 jaw meters (can be readily converted to suit meter forms requiring 4 blades)
• 400/5 A three-wire current transformer provides low current for service metering proportional to higher current draw. Consumer and Corporate Affairs
Canada approved for revenue metering (200/5 and 300/5 A also available)
• Gutter wiring space provided on left side
• Twin covers allow access to either compartment (single cover available on request)
• Hub opening closure plate for underground service. All units can be converted to overhead service with addition of conduit hub and JS250 or JS500 tunnel type connector kit
• Hinged bridges and readily removable crossbar with keyholes permit easy wiring without obstructions
• Heavy gauge galvanized steel. Ovencured grey enamel finish.
• For aluminum JS4’s see page D41 for product specs and dimensions
• Three 1-1/4 in., 1-1/2 in., 2 in., 2-1/2 in., 3 in., 3-1/2 in., 4 in. Bottom Knockouts
• Weatherproof Type 3R enclosure