WKB
The temperature capillary thermostat is applicable to electric water heater, water boiler, electric oven, warm air heater,air curtains, washing machine, frier, kitchen equipment, etc
Adjustable single-pole capillary thermostat WKB series is intended to maintain the required temperature in a device or its parts. A rise in temperature causes the expansion of liquid within the bulb and capillary. The liquid acts on a diaphragm within the plastic housing to open electrical contacts.
Temperature range 10°C…+60°C, 30°C…+85°C, 30°C…+110°C,30°C…+230°C,50°C…+320°C,
other temperature range can be customized on request.
change-over contact. Rating 16A/250VAC.
Capillary and bulb material – stainless steel. Capillary length 1000mm.
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WKB series capillary thermostat switches

Features & Specifications
The WKB series electric thermostat is a snap acting, single pole single throw (SPST) type thermostat. Most thermostats use silver contacts and have heavy-duty
terminals for durability and sustained accuracy. The snap-action mechanism is precise and reliable. This direct acting series of thermostats is suitable for the commercial cooking industry.
● Temperature ranges up to 320 centigrade.
● Rugged and compact design for versatility and long life.
● Temperature Control Switch; bulb and capillary available in copper, nickel plated copper and stainless steel
● Contact : 1NC 1NO;Rated Voltage : AC 250V;Current : 16A
● Dials of heat resistant plastic available
● Stem flat in down position
Capillary thermostat switches | ||||
Temperature range | Mechanical differential (start/stop) |
Inaccuracy | Electrical rating | Life |
10℃ to 60℃ | >2<9 | ±4 | 220V@16A | >100,000 cycles |
30℃ to 85℃ | >2<9 | ±5 | 220V@16A | >100,000 cycles |
30℃ to 110℃ | >2<9 | ±6 | 220V@16A | >100,000 cycles |
30℃ to 230℃ | >2<9 | ±8 | 220V@16A | >100,000 cycles |
10℃ to 320℃ | >2<9 | ±9 | 220V@16A | >100,000 cycles |
Note: other temperature range can be customized on request.