This is a highly durable COMMERCIAL GRADE 230 volt electrical controller box for a single 5500 watt element. Requires a 40 amp outlet. Designed for use with 100 litre single walled kettles or 50 litre jacketed kettles. Comes with a lockable on/off switch, temperature control knob and ammeter. Manufactured in Canada using all North American components. Fully CSA approved and UL listed. Nema 4X encasing. Waterproof and corrosion proof. Comes with a two year warranty.