Type 8J: double pole high rating (30A) bulb and capillary thermostats



Applications: High rating single pole control, for catering equipment, domestic heaters,

Housing dimensions: 104 x 55 x 48 mm

Material: metal /ceramic housing, stainless steel bulb and capillary. Capillary minimum bending radius 5 mm. 150 mm PVC sleeve on capillary

Temperature sensing element: liquid filled bulb and capillary.  Special capillary length from 300 mm to 3000 mm on request (MOQ apply)

Terminals: 2 screws, UNC 10-32

Adjustment: dia. 6,35 mm (1/4”) shaft, 11.5 mm length, 270° mechanical rotation other lengths, rotation or fixed setting available on request (MOQ apply).

Mounting:  front bracket with 4 tapped holes (#6-32 UNC-2B), 33.3 and 44.4 mm distance

Rating: 30A 250/400VAC, resistive

Contacts: 2 normally closed snap action contacts, double break, open on rise.

Option: back mounting bracket

Max ambient temperature on housing: 85°C

Accessories: dia. 50 mm knobs printed  in °C or °F

Approvals: comply with EN 60730-1 and EN 60730-2 standards


Main references

References Temperature range


Capillary length (mm) Bulb diameter


Bulb length




Max temperature on bulb (°C/°F)
8JQ004040AO6A001 4-40°C (40-105°F) 1500 6 215 4±2°C /7±3.6 °F) 43°C/110°F
8JQ030090AO6A001 30-90°C (85-195°F) 1500 6 130 5±3(41±37.4°F) 100°C/212°F
8JQ030110AO6A001 30-110°C (85-230°F) 1500 6 120 14±3(57.2±37.4°F) 250°C/482°F
8JQ050200AO6A001 50-200°C (120-390°F) 1500 6 75 17±3(62.6±37.4°F) 250°C/482°F
8JQ050000AO6A001 50-300°C (120-570°F) 1500 6 75 17±3(62.6±37.4°F) 310°C/590°F


2D&3D Drawing