Microlectric® CT-SWL Series 20Amp 600 V; Transformer Rated c/w Test Switch Product Specifications: • Conductor range: 14-10 AWG • Tunnel type connectors for both load and line sides • For underground service only • Lower test switch compartment cover securely held by upper cover and a out device with an enlarged pad hole (0.375 in. dia.) • Test switch included as part of these models • Units are prewired from base to test switch • Furnished with tamper resistant device for meter ring • Weatherproof Type 3R enclosure • Primarily used in: Alberta (CT104-5SWLHQ for Hydro-Québec only)