Timeguard TRTM7N Economy 7 Analogue Immersion Timer\nInterchangeable with Sangamo and Horstmann Economy 7 units.\nSuitable for use with single, dual or twin element immersion heaters.\nDesigned for use with Economy 7 off peak rate overnight electricity plans.\n4 Boost demand options \u2013 15, 30 minutes, 1 & 2 hours.\n24 hour Segment dial with minimum 15 minute switching intervals.\nOutput LEDs illuminate during off-peak and boost periods.\nQuartz reserve with 150 hours memory back-up.\nFits and supplied with a standard size Economy 7 wall box.\nIP30 enclosure protection.\nClass 1 shock protection.\nContact rating: 13A suitable for immersion heaters up to 3kW.\nOperating temperature: 0\u00B0C to +35\u00B0C.\nContact type: Micro-disconnection ON control.\nDisconnection to immersion heater(s) via double pole rocker switch.\n\nSpecification\nOperating Voltage: 230V AC - 50Hz\nTimer Mode: 24 Hour + Boost\nBoost Duration: 30, 60 or 120 minutes\nSwitch Type: Double Pole Rocker Switch\0