Sangamo S255 Commercial Timer, 4 Pin Time Switch 20A 0.6W with a day omission

This is the Sangamo standard RPTS S255 24 Hour, 4-pin Time Switch with 3 ON/OFF Operations without battery reserve - 3 ON and 3 OFF operations per day, with a "day omit" (allows you to select any number of days in the week on which the switching cycle can be disabled). The 24h programming cycle performs the same sequence of switching operations on each day; it can be quickly set with the help of the small manual levers on the dial. It is ideal for operating heating, ventilation, and equipment controls at certain times of day. 

Sangamo S255 4 Pin Commercial Time Switch

• Programming: 24 hour with 3 operations
• Current Rating: 20A
• Connection Pins: 4
• Battery Reserve: None
• Day Omit Dial: Yes (Omits the ‘ON’ operation)
• Sangamo Time Switch, 4 Pin, 20A, 0.6W
• Programming: 24 hour programme with 3 ON and 3 OFF operations per day
• Display: 24 hour dial
• Mounting: Surface mounting
• Current Rating: SPST: 20amp resistive
• Mains Supply: 230V, 50/60 Hz a.c.
• Base Type: 4 Pin
• Reserve: none
• Day Omission: Yes (omits the “ON” operation)
• Temp Override Facility (Manual Button): Advance to “OFF”, when program “ON” and will remain “OFF” unit next “ON” operation and vice versa
• Cable Size: 6.0mm2
• Timing Accuracy: 5 mins/year
• Power Consumption: 0.6W at 230V
• Ambient Temperature Range: Designed to operate over a temperature range of 0oC to 50oC continuous
• Live Parts Protection: This timer is totally protected by its enclosure
• Dirt Protection: Normal domestic dust deposits only
• Moisture Protection Ordinary: it has no special protection against moisture
• Shock Protection: Class 1 (it must be earthed)
• Dial Calibration: 15 min divisions
• Setting Accuracy: +/- 3 minutes
• Period Between unlike Operations: 15 minutes minimum
• Period Between like Operations: 1 3/4 hours minimum
• BEAB Approval: Yes
• Dimensions: Height (wall mounted) 136mm, width 105.7mm, projection 82mm, (Total height 146.5mm)