MTM0300SS 300w 12,13,14,15 volt taps Multi-Tap EI Magnetic Core Transformer. Material/Features: 304 Stainless Steel Case; ETL Approved to UL1838; Bottom Panel pre-punched with conduit knockouts, and swings down for ease of installation and is fully removable; Quick Mount Bracket Allows for mounting without templates; Lifetime Warranty; Sealed removable, lockable hinged doors. Finish: Muted Stainless Steel. Electrical: 6_ Heavy Duty Power Cord; Large terminal blocks allow for 10 #12/2 or 8 #10/2 wire; Primary Side Thermal Protection; Secondary Side Magnetic Circuit Breakers; Fully Encapsulated EI Magnetic Core; Surge Suppressor provides protection against initial start overload on primary circuits; Internal wiring rated to 125_C; 115 AMP rated terminal block; Primary AMP loop provided on 900 & 1200 watt models.