Type 8X: DPNC manual reset high limit, fail safe



Housing dimensions: 43 x 35 x 29 mm (without terminals and diaphragm)

Capillary: copper, capillary length 250mm or 900 mm, 150 mm long PVC sleeve on capillary. Capillary minimum bending radius 5 mm.

For technical reasons, we do not recommend to use capillary length longer than 900 mm.

Bulb: copper, corkscrew type for temperatures from 60 to 130°C (140 to 266°F),  tubular  dia 6 mm from 130°C to 170°C (266 to 338°F).

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 slower.

Terminals: 6.35 x 0.8 quick connect terminals Adjustment: fixed setting  

Mounting: Front bushing, with M10x1

Manual reset: fail safe action, front access button

Rating: 20A 250VAC

Contacts: DPST  (snap action contact)

Max ambient temperature on head: 125°C (257°F)


Main references

Reference Calibration

temperature (°C/°F)

Minimum resettable temperature (°C/°F) Capillary length (mm) Bulb diameter


Bulb length


Max temperature on bulb (°C/°F)
8X0060090AI610F1 60±5°C/140±41°F 20°C/68°F 900 6 50 90°C/194°F
8X0060090AA610F1 60±5°C/140±41°F 20°C/68°F 250 6 50 90°C/194°F
8X0070100AI610F1 70±5°C/158±41°F 30°C/86°F 900 6 50 100°C/212°F
8X0080110AI610F1 80±5°C/176±41°F 40°C/104°F 900 6 50 110°C/230°F
8X0090120AI610F1 90±5°C/194±41°F 50°C/122°F 900 6 50 120°C/248°F
8X0110140AI610F1 110±5°C/230±41°F 70°C/158°F 900 6 50 140°C/284°F
8X0130160AI610F1 130±6°C/266±42.8°F 90°C/194°F 900 6 60* 160°C/320°F
8X0150180AI610F1 150±7°C/302±44.6°F 110°C/230°F 900 6 60* 180°C/356°F
8X0170200AI610F1 170±7°C/338±44.6°F 130°C/266°F 900 6 60* 200°C/392°F

*Cylinder bulb Bulbe


2D&3D Drawing