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    Siemens 3SE7 Rope Pull Switch, 25m, NO/NC, Straight

    RS Stock No.:
    764-4301
    Mfr. Part No.:
    3SE7150-1BD04
    Brand:
    Siemens
    Siemens

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    Discontinued product
    RS Stock No.:
    764-4301
    Mfr. Part No.:
    3SE7150-1BD04
    Brand:
    Siemens
    COO (Country of Origin):
    DE

    Legislation and Compliance

    COO (Country of Origin):
    DE

    Product Details

    3SE7 Emergency Grab Wire Switch


    The 3SE7 series of grab wire switches (trip wire switches, cable operated switches) are used for monitoring or for EMERGENCY STOP devices on particularly dangerous system sections.
    As the effective range of a grab wire switch is only limited by the length of the grab wire, large systems can also be protected. Switches (requiring pulling at both ends) and conveyor belt unbalance trackers are used primarily for monitoring very long belt systems.

    Design


    The switches for wire lengths up to 50m are available with 1 NO + 1 NC or 2 NC contacts and for up to 75m with 1 NO + 3 NC contacts. The switches for wire lengths of 2 ´ 75m and the conveyor belt unbalance trackers are supplied with 2 NO + 2 NC contacts.
    The grab wire switch and the conveyor belt unbalance tracker are also available with a factory fitted LED (red, 24 V DC). This light has innovative on board chip technology that allows the operating state of the switch to be visible at a distance of at least 50m.

    Function


    The NC contacts of the grab wire switch and the conveyor belt unbalance tracker are positive opening. The grab wire switches with one side operation are held in free position by the pre-tension on the turnbuckle. In the 3SE7 140 and 3SE7 150 grab wire switches, both switching contacts are available for wire-break/wire-pull signalling. The NO contact can be used, for example, for signalling purposes. On switches with interlocking, with a pre-tensioned wire, the locking must be deactivated beforehand in order to return the grab wire switch to its original position.

    Positive latching and positive NC contacts
    Switches for wire lengths up to 75m
    Metal housing
    Enclosure is screw mounted
    IP65 rating
    Operating temperature: -25 to +70°C

    Note

    Stock nos. 764-4341, 764-4301, 764-4304, 764-4357 are fitted with an indicator light.

    Standards

    The switches are equipped with positive latching and positive NC contacts and are therefore suitable for operation in EMERGENCY STOP devices in accordance with EN ISO 13850. They are usable up to Category 4 according to EN 954-1.

    Approvals

    UL,CSA

    Specifications

    AttributeValue
    Normal State ConfigurationNO/NC
    Cable Length25m
    Mounting OrientationStraight
    IP RatingIP65
    Series3SE7
    RangeSIRIUS
    Length164.5mm
    Width52mm
    Depth74.5mm
    Housing MaterialAluminium Alloy
    Conduit EntryM20 x 1.5
    Maximum Current6A
    Dimensions164.5 x 52 x 74.5mm
    Maximum AC Voltage400V
    Minimum Operating Temperature-25°C
    Maximum Operating Temperature+70°C
    Discontinued product