The Siemens RWB27SI Electronic Service Interval Programmer is a single channel service interval timeswitch with one volt free changeover contact that comes from the range of heating controls from acclaimed manufacturer Siemens.
The world-leading brand offers functional and reliable products that can achieve massive savings on your heating bills.
- Menu driven programming
- Backlit display
- Simple operation
- 24-hour, 7-day or weekend/weekday program
- Two or three ON/OFFs per day
- Holiday programming
- LED ’ON‘ light
- Advance facility
- Boost facility
- Override facility
- Independent timing for hot water and central heating
- Gravity or fully pumped systems
- Ideal for combi boilers
| Operating Voltage | AC230V |
| Frequency | 50Hz |
| Contact Rating | 6A resistive |
| Temperature Range | 0-40°C |
| Housing | ABS resistant to fire IEC730 standard |
| Dimensions | 145mm x 90mm x 34mm |
