Sangamo Q557.3 Standard RPTS Q557 24 Hour 4-Pin Time Switch With 3 On/Off Operations With 100 Hour B

The Q557 is a 24 hour time switch that comes with a day omit OFF function. This omit feature on the Q557 allows you to keep your application on all day if selected rather than being restricted to normal times. There is also a manual override button for your convenience.

Programming 24 hour programme with 2 (Q557.2) or 3 (Q557.3) ON/OFF operations per day
Display 24 hour dial
Mounting Surface mounting
Current Rating SPST: 20amp resistive
Supply 230V, 50/60 Hz a.c.
Base Type 4 Pin
Reserve 100 hrs (providing battery has been charged for 300 hrs)
Day Omission Yes (omits the “OFF” operation)
Temp Override Facility Advance to “OFF”, when program “ON” and will remain “OFF” unit next
(Manual Button) “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 0°C to 50°C continuous
Live Parts Protection This timer is totally protected by its enclosure
Dirt Protection Normal domestic dust deposits only
Moisture Protection Ordinary: has no special protection against moisture
Shock Protection Class 1 (Product must be earthed)
Dial Calibration 15 min divisions
Setting Accuracy +/- 3 minutes
Conforms to BS EN60730
Dimensions Height (wall mounted) 136mm, width 105.7mm, projection 82mm, (Total height 146.5mm)

1 – Live In (Clock & Load) – External link 1 to 3 if using a single 230Vac supply
2 – Live Out (Load)
3 – Live In (Clock)
4 – Neutrals
Earth Posn – Earth

4 pin switches have independent clock and switch connections which enable a different AC switching circuit voltage to be controlled from that of the 230V required to run the clock. eg switch a 110Vac machine. You can also isolate the switching circuit independent of the supply to the clock.