Hypex Softstart Module


    The Softstart module is used to minimize transformer inrush currents and provide for push button control at the same time.



    • 115/230V operation
    • Low power switch control
    • Low weight: 175 gr


    Product details

    Hypex Softstart Module


    Transformer inrush current is limited by means of a triac switching heavy-duty resistors in series with AC mains prior to relay switching. With an optional (bi-color) LED the status “On” or “Standby” can be indicated. In “Standby” the power-consumption will be less than 1.2W. The Softstart can operate with either a push button or a switch (jumper selectable). If additional thermal protection is required, a PTC-option is selectable. The Softstart can switch multiple transformers up to a total maximum of 1500VA. Maximum continuous current must not exceed 6A.


    This module is designed as a toroidal transformer inrush current limiter. Although it is successfully used in combination with a SMPS, this has not been tested or approved by Hypex Electronics. As a service, in the datasheet, a connection diagram is given for the use of this module in combination with one SMPS400. Additional support on the use of this module in combination with SMPS cannot be given.



    • Transformer inrush current limiter
    • Push button control
    • Temperature monitoring
    • Single/dual LED indication


    Softstart Module


    5 from 5Based on 6 reviews
    Schrijf een review
    5 van 5
    Door Boris K. on 26 September 2020
    4 van 5
    Working perfect. The only thing
    is if I connect the Switch
    I need to put a relay in between the output from my processor that is NC activ after start, and the softstart is NO to be active.
    Door Lars J. on 13 April 2020
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