Blue Ink is member of Ultimheat Alliance Controls and heating equipments

Blue Ink is member of Ultimheat Alliance Controls and heating equipments

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Controls, Components, Heating equipments

ULTIMHEAT : IP65 aluminum enclosure bulb and capillary thermostat. Y1G8

Bulb and capillary thermostats (Liquid expansion measurement)



Single pole


Range °C





Main features


Remote control in usual industrial application and environment, not hazardous areas. Internal adjustment is convenient for products that must not be frequently adjusted.
Standard electrical and mechanical life model Housing: Aluminum,IP65, IK10, 104 x 102 x 86 mm. Mounted on a SUS304 stainless steel wall mounting plate. Grey RAL7032 epoxy painting
Set point adjustment ranges: -35+35°C (-30+95°F), -10+40°C (15-105°F), 4-40°C (40-105°F), 30-90°C (85-195°F), 30-110°C (85-230°F), 50-200°C (120-390°F), 50-300°C (120-570°F).

Temperature adjustment: Set point adjustable by temperature printed internal knob. Shipped with °C printed skirt fitted on the knob, and °F printed skirt in spare part. Printed skirt is replaceable without tool.

Action: temperature control.

Sensing element: Liquid expansion bulb and capillary. The capillary is protected by a stainless steel corrugated pipe terminated by a silicone tip. A plastic cap plug provided as standard accessory allows locking the flexible metal conduit inside a pocket (See pockets in the accessories section)

Electrical connections: Inside, on screw terminal connection block

Earthing: on internal screw terminal

Cable output: M16 cable gland, PA66, for cables up to 10 mm dia.

Mounting: Wall mounting, by 4 holes for screws dia. 4 to 5 mm, 94 x 92 mm distance

Identification: 20 x 40 mm stainless steel identification label, riveted.

Contact: SPDT

Electrical rating:
- Open on temperature rise contact (C-1) 16A(2.6) 250VAC
- Close on temperature rise contact (C-2) 6A(0.6) 250VAC
- Electrical life >100.000 cycles.
Cannot be used in 400VAC

Minimum Storage temperature: -35°C (-30°F)

Main references
Temperature adjustment ranges °C (°F) References Differential °C (°F) Capillary length (C, mm) Bulb diameter (D, mm) Bulb length (E, mm) Max. temperature on bulb °C (°F)
-35+35°C (-30+95°F) Y1G8GB-35035AO6G 3±2°C (5.5±3.6 °F) 1500 6 98 55°C (130°F)
-10+40°C (15-105°F) Y1G8GB-10040AO6G 3±2°C (5.5±3.6 °F) 1500 6 120 60°C (140°F)
4-40°C (40-105°F) Y1G8GB004040AO6G 3±2°C (5.5±3.6 °F) 1500 6 140 60°C (140°F)
30-90°C (85-195°F) Y1G8GB030090AO6G 4±3°C (7±5.5 °F) 1500 6 87 120°C (250°F)
30-110°C (85-230°F) Y1G8GB030110AO6G 5±3°C (9±5.5 °F) 1500 6 83 150°C (300°F)
50-200°C (120-390°F) Y1G8GB050200AO6G 8±5°C (14.5±9 °F) 1500 6 59 250°C (480°F)
50-300°C (120-570°F) Y1G8GB050300AO3G 10±5°C (18±9 °F) 1500 3 165 350°C (660°F)