Type Y1A2L & Y1B2L:Manual reset electronic room adjustable limiter



Wall mounting for indoor or outdoor high temperature alarm of cold rooms.

High temperature alarm of industrial or commercial premises.

– Outdoor temperature control of antifreeze heaters.

High temperature alarm of green houses and livestock stables.


Housing: Aluminum, IP65, IK10. Mounted on a SUS304 stainless steel wall mounting plate which keeps the temperature sensing element away from the wall. Grey RAL7032 epoxy painting. Stainless steel captive cover screws. Captive aluminum lid.

Operation:  Microprocessor manual reset electronic limiter, with adjustable set point.

Adjustment ranges: -35-35°C (-30+95°F), 0-10°C (32-50°F), 4-40°C (40-105°F).

Set point adjustment:  By °C printed knob. All types have an adjustable rotation limit system located inside the knob that allows reducing the set point adjustment span. Types with external adjustment have a transparent window. This device allows seeing the pilot light and the knob position.  °F values are available as an option.

Reset: by push button switch beside the knob.

Sensing element: NTC probe, mounted on the side of plastic housing.

Cable input and output: Two M20 cable glands, Black PA66. Internal electrical connection on screw terminals. 2 phase power supply (Line+ Neutral, 220~250V, 50Hz~60Hz) are mandatory.

Earthing:  Internal and external screw terminal.

Pilot light: Allow to visualize thermostat contact output position. Standard for all models with transparent window. Non Standard and on special request only for models with plain aluminum cover.

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

Identification: Metallic identification label, riveted.

Contact: SPST. 16A (2.6), 250VAC. Open or close on temperature rise. The version with contact closing on temperature rise  is used to switch on an alarm. The version with contact opening on temperature rise  is used to switch-off heating.

Electrical life: >100.000 cycles. 

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

Maximum ambient temperature: 60°C (140°F)

For more technical information ask 2PE2N6 thermostat technical data sheet (catalog 1)


Main references

Temperature adjustment ranges

°C (°F)

Open on temperature rise contact

Close on temperature rise contact
References with external adjustment References with internal adjustment References with external adjustment

References with internal adjustment

-35-35°C (-30+95°F) Y1B2LN6F235035AJ Y1A2LN6F235035AJ Y1B2LN6G235035AJ Y1A2LN6G235035AJ
4-40°C (40-105°F) Y1B2LN6F204040AJ Y1A2LN6F204040AJ Y1B2LN6G204040AJ Y1A2LN6G204040AJ

°F printing: replace last character (J) by K



2D&3D Drawing