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Main applications

Temperature safety on hot water tanks, electric radiators, electro-thermal heating equipment.

Technical features

Housing dimensions: 42.3 × 37.3 × 23mm (without terminals and diaphragm)

Capillary: Copper, capillary length 250mm, 500 or 900mm. Black PVC sleeve on capillary. Capillary minimum bending
radius 5mm.
For technical reasons, we do not recommend to use capillary length longer than 900mm. We don't recommend 250mm long capillary for calibration temperature above 90°C (194°F)
Special lengths on request.

Bulb: Copper, corkscrew type for temperatures from 60 to 130°C (140 to 266°F).
Straight uncoiled capillary available on request

Temperature sensing element: Liquid-filled thermostatic assembly whose boiling causes tripping of the contact.Therefore, unlike liquid filled systems, these thermostats are sensitive to atmospheric pressure, and their reaction time is faster.
Terminals: Four 6.35 × 0.8 quick connect terminals, or two M4 input screw terminals and two 6.35 x 0.8 tab terminals for connection to heater. (Two 6.35 × 0.8 quick connect terminals, or one M4 input screw terminal and one 6.35 x 0.8 tab terminals for connection to heater in the 8Y version). In the model with one auxiliary close on rise terminal, this output connection is mandatory 6.35 × 0.8 tab.
6.35 × 0.8 tabs can have different bending angle. References on request. (MOQ apply)

Adjustment: Fixed setting

Mounting: Front bushing, with M10×0.75

Manual reset: Fail-safe action, front access button

Contacts: Double pole single throw 20A 250V snap action contact.(One SPNC contact in 8Y version). In option: DPST + 1 close on rise auxiliary contact with 1A 250V rating. (One SPNC contact in 8Y version). One SPNC+ 1 close on rise auxiliary contact with 1A 250V rating in 8Y version.

Max ambient temperature on head: 115°C (239°F). Must not be higher than calibration temperature -10°C (-18°F).