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    Siemens Single Channel 24V dc Safety Relay, 2 Safety Contacts

    RS Stock No.:
    528-0920
    Mfr. Part No.:
    3TK2827-2BB40
    Brand:
    Siemens
    Siemens

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    Discontinued product

    Alternative

    This product is not currently available. Here is our alternative recommendation.

    Siemens Single Channel 24V dc Safety Relay, 2 Safety Contacts
    RS Stock No.
    411-2157

    Price Each

    £401.69

    (exc. VAT)

    £482.03

    (inc. VAT)

    RS Stock No.:
    528-0920
    Mfr. Part No.:
    3TK2827-2BB40
    Brand:
    Siemens

    Legislation and Compliance


    Product Details

    SIRIUS 3TK28 27/28 Safety Relays with Timed Delay


    The SIRIUS 3TK28 27/28 Safety Relays with Timed Delay provide the functionality of time delayed contacts within a 45mm housing. The time delay is adjustable for each unit. Two different types offer a time delay from 0.05s up to 3s or 0.5s up to 30s. While standard safety contacts in these units are certified up to Category 4, time delayed outputs only reach a Category 3 level according to EN954-1.


    Standard relay enable circuits (positively driven)
    Suitable for use with Expansion module 3TK28 30
    Single/two-channel sensor connection
    Width 45mm


    Standards

    EN 60204-1, EN 92, EN 954-1.


    Specifications

    AttributeValue
    Supply Voltage24V dc
    Number of Channels1
    Safety Contacts2
    FunctionSafety Switch/Interlock
    Auxiliary Contacts1
    Reset MethodMonitored
    RangeSIRIUS
    Width44.8mm
    Depth120mm
    Terminal TypeCage Clamp
    Series3TK28
    Safety Category4
    Performance Levele
    Length138.5mm
    Discontinued product

    Alternative

    This product is not currently available. Here is our alternative recommendation.

    Siemens Single Channel 24V dc Safety Relay, 2 Safety Contacts
    RS Stock No.
    411-2157

    Price Each

    £401.69

    (exc. VAT)

    £482.03

    (inc. VAT)