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Installation Instructions
Features
Contact rating
Contact rating
(N.America)
Temperature Accuracy
Contact Type
Transmitter frequency
Transmitter range
Power Supply
Control Pollution
Situation
Rated Impulse Voltage
Designed to meet
Ball Pressure Test
Temperature Range
Dimensions (mm)
Important note RF products: Ensure that there are no large metal objects, such as boiler
cases or other large appliances, in line of sight between the transmitter and receiver as
these will prevent communication between thermostat and receiver.
RET B (RF) / RET B-LS (RF) / RET B-NSB
10 - 230 Vac, 3 (1) (excl. North America)
10 - 24 Vac, 50/60Hz, 3(1)A
SPDT Type 1B
433.92 MHz (RF models)
30m max (RF models)
2 x AA/MN1500 alkaline batteries
Degree 2
2.5 kV
BS EN 60730-2-9 (EN 300220 for RF)
5-30°C
85 wide x 86 high x 42 deep
(RF)
±1°C
75°C
GB
3
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