Type Y08: Combination of adjustable set point thermostat and manual reset high limit, IP54 commercial housing, With immersion heater mounting bracket


Main applications:

Control sub-assembly designed to be fitted directly on standard immersion heaters. Power up to 3500W, 230V, single phase.

Housing: IP54, 105 x 88 x 84.5 mm, (Cap, accessories and cable gland not included), black PC-ABS, UL94V0. High impact and UV resistance.

Product including an adjustable temperature control thermostat and a fixed setting high limit manual reset thermostat. Manual reset has access from outside, by removing a cap.

Electrical input: one M20 cable gland.

Temperature Adjustment: Inside, with °C printed knob. (°F printed knobs available in option)

Sensing elements: Liquid filled bulbs, dia. 6mm , with output on backside, for mounting inside immersion heater pockets

Adjustment ranges: 0-60°C (32-140°F) ;  30-90°C (85-195°F) ; 30-110°C (90-230°F)

Sensing element output lengths (C):  500mm (standard) , other lengths from 150mm  to 800mm available on request  

Electrical connections:

-Power supply (Neutral, Line, Ground), on 6mm² screw terminals.

-Immersion heater: 3 wires, FEP 180°C insulated, 2.5mm², equipped with ring terminals, length 50mm on the immersion heater connection side, for direct connection on heating element M4 terminals. (Neutral wire is blue color)

-Pilot light (Option): can be connected by a strap on power supply, or on control thermostat output, or on safety thermostat output.

Mounting: by the backside extension, on the 50mm diameter hole, that can be used for immersion heaters with 1”1/2 thread

or M45 thread, mounted by nut or by dia 56mm rotation ring (see fittings and accessories for immersion heaters in catalogue 2)

Control thermostat contact:  Open on temperature rise contact (C-1) 16A(2.6) 250VAC

-Electrical life >100.000 cycles.

Manual reset thermostat contact:  Fail safe, open by temperature rise; 16A (2,6) 250V alt.

Control thermostat and manual reset thermostat contacts are in serial on the Line supply of immersion heater.


– Pilot light (230V)

-Liftable adjustable high end adjustment on control thermostat.

– Outside access to the control thermostat adjustment (By removing a 40mm dia. cap)

-Thermal cut out for incorporation inside immersion heater pocket.

Main references (with C= 200mm)

Temperature ranges

°C (°F)

Manual reset calibration

°C (°F)

Cap access manual reset Cap access manual reset, liftable adjustable high stop Cap access manual  reset, liftable adjustable high stop, power supply “on” pilot (230V) Differential

°C (°F)

Max temperature on bulbs

°C (°F)



80°C (176°F) Y08MS00060A20080 Y08ME00060A20080 Y08NE00060C20080 4±3 (7±5.5°F) 90 (195°F)


110°C (230°F) Y08MS30090A20110 Y08ME30090A20110 Y08NE30090C20110 4±3 (7±5.5°F) 120 (250°F)


130°C (266°F) Y08MS30110A20130 Y08ME30110A20130 Y08NE30110C20130 5±3 (9±7°F) 150 (300°F)

Other temperature ranges on request


2D&3D Drawing