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    High Temperature Limit Switch with Roller Plunger

    5 out of 5 based on 1 reviews | Write a review
    There are two types of roller plunger limit switch, the roller direction of the one is parallel to the mounting surface, and the other is perpendicular to the mounting surface. Roller plunger has automatic reset function. It is also high temperature limit switch with the fully enclosed 1NO + 1NC contact switches casting from high temperature resistant material. It can be used in the environment temperature 350℃ (622℉) and without being damaged by oxidation or pollution. The default rated current and voltage is 5A/220VAC. Other values are customizable, such as 3A/480VAC, 0.8A/120VDC, etc.
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    Delivery date: 6-12 days

    High temperature limit switch has two types of roller plunger, with contact type 1NO + 1NC and rated current/voltage 5A/220VAC.


    Weight 258g
    Roller direction * Parallel to the mounting surface Perpendicular to the mounting surface
    Rated voltage 220VAC (Customizable rated voltage is shown in the reference table below.)
    Rated current 5A (Customizable rated current is shown in the reference table below.)
    Contact type 1NO+1NC (NC pin: 1 & 2, NO pin: 3 & 4)
    Operating speed 1mm/s~2m/s
    Operating frequency Machinery: 120 times/minute
    Electric: 30 times/minute
    Contact resistance <15MΩ, initial stage
    Insulation resistance >100MΩ (<500VDC)
    Withstand voltage Between no-connection terminals: 1000VAC, 50/60Hz lasts 1 minute
    Between the terminal and the contact: 2000VAC, 50/60Hz lasts 1 minute
    Between terminal and no-load current metal: 2200VAC, 50/60Hz lasts 1 minute
    Vibration Misoperation endurance: 10~55Hz, 1.5mm, double-amplitude
    Impact Mechanical endurance: >1000m/s2 (>100G)
    Misoperation endurance: >300m/s2 (>30G)
    Shell material Cast aluminum alloy
    Temperature -10~+350℃ (14~622℉)
    Humidity <95%RH
    Working life Machinery: >15million times
    Electric: >0.5million times
    Protection class IP66

    Reference table for customizable rated voltage and rated current:

    Rated voltage Rated current (A)
    Non-inductive load Inductive load
    Resistive load Lamp load Inductive load Motor load
    125VAC 10 3 1.5 10 5 2
    250VAC 5 2 1 5 3 1.0
    480VAC 3 1.5 0.8 3 1.5 0.8
    600VAC 1 1 0.5 1.5 1 0.5
    8VDC 10 6 3 10 6
    14VDC 10 6 3 10 6
    30VDC 6 4 3 6 4
    125VDC 0.8 0.2 0.2 0.8 0.2
    250VDC 0.4 0.1 0.1 0.4 0.1


    1. Power factor of inductive load is above 0.4 (AC). The time constant is below 7ms (DC).
    2. The inrush current of lamp load is 10 times that of steady state current, and the inrush current of motor load is 6 times that of steady state current.

    Operating Characteristics:

    OF (Max.) 2720g 2720g
    RF (Min.) 910g 910g
    PT (Max.) 1.7mm 1.7mm
    OT (Min.) 5.6mm 5.6mm
    MD (Max.) 1mm 1mm
    OP 44±0.8mm 44±0.8mm

    Dimension (unit: mm):
    High temperature limit switch with roller plunger dimension
    Note: In the diagram, OP means operation position, at which the external force is applied to the drive lever to make the movable contact just operating from the state of the free position. PT means pretravel, the distance the drive rod moves from the free position to the operation position.

    Existing reviews of High Temperature Limit Switch with Roller Plunger
    Related parameters of high temperature limit switch
    What is tripping travel of your high temperature limit switch?
    From: Arturo | Date: 14/07/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Tripping travel: ±5 degrees.
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