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    PTC-resistor Relay Type MSF220K: For Dry-Transformers, 2 PTC-Circuits

    Uploaded by

    Foti Karakouka
    This document summarizes a PTC-resistor relay type MSF220K for monitoring dry transformers. It has two PTC resistor circuits and two output relays, one change-over contact and one normally open contact. Alarm 1 provides preliminary warning and activates at over-temperature of PTC set 1. Alarm 2 operates in normal current mode to avoid false signals on power up. Additional terminals allow comfortable wiring to relays K1 and/or K2 from the power supply.

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    PTC-resistor Relay Type MSF220K: For Dry-Transformers, 2 PTC-Circuits

    Uploaded by

    Foti Karakouka
    85 views1 page
    This document summarizes a PTC-resistor relay type MSF220K for monitoring dry transformers. It has two PTC resistor circuits and two output relays, one change-over contact and one normally open contact. Alarm 1 provides preliminary warning and activates at over-temperature of PTC set 1. Alarm 2 operates in normal current mode to avoid false signals on power up. Additional terminals allow comfortable wiring to relays K1 and/or K2 from the power supply.

    Original Description:

    MSF220K Datasheet

    Original Title

    MSF220K_Datasheet_ZIEHL_e_2019-03-29

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    This document summarizes a PTC-resistor relay type MSF220K for monitoring dry transformers. It has two PTC resistor circuits and two output relays, one change-over contact and one normally open contact. Alarm 1 provides preliminary warning and activates at over-temperature of PTC set 1. Alarm 2 operates in normal current mode to avoid false signals on power up. Additional terminals allow comfortable wiring to relays K1 and/or K2 from the power supply.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    85 views1 page

    PTC-resistor Relay Type MSF220K: For Dry-Transformers, 2 PTC-Circuits

    Uploaded by

    Foti Karakouka
    This document summarizes a PTC-resistor relay type MSF220K for monitoring dry transformers. It has two PTC resistor circuits and two output relays, one change-over contact and one normally open contact. Alarm 1 provides preliminary warning and activates at over-temperature of PTC set 1. Alarm 2 operates in normal current mode to avoid false signals on power up. Additional terminals allow comfortable wiring to relays K1 and/or K2 from the power supply.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    PTC-resistor relays type MS

    PTC-resistor relay type MSF220K


    for Dry-Transformers, 2 PTC-Circuits

    MSF220K
    PTC-relay for the monitoring of • 2-PTC resistor sets
    dry transformers. • 2 output relays 1 change-over contact (co) / 1 nor-
    Alarm 1 with relay in closed- mally open contact (no)
    circuit current mode for pre- • monitoring of sensors for short-circuit and break
    liminary warning, releases at activatable
    over-temperature at PTC-set 1 • Test-button (delayed)
    and serves at the same time as • LEDs for ON, alarm 1 and 2
    functional monitoring. • K-type housing, vertically arranged terminals, 22,5
    Alarm 2 in operating current mm wide
    mode. Thus no wiping signal • for attachment on DIN rail 35 mm or with 2 screws
    occurs when switching on the M4
    supply voltage on.
    Additional terminals enable
    comfortable wiring from supply
    voltage to relays K1 and/or K2.

    Part numbers:
    T221718 AC 220-240 V
    T221717 AC/DC 24-240 V

    Technical Data Rated supply voltage US AC 220 - 240 V ± 10 %, 50/60 Hz, ≤2 VA


    AC/DC 24-240 V, AC 19 - 264 V, DC 20 - 297 V <3VA

    connectable PTC resistors 2 x 1... 6 PTC according to DIN 44081 or 44082


    switching point < 4000 Ω
    output relays 1 change-over contact (co), 1 normally-open contact
    (no)
    type of contact type 2 see "general technical information"
    test conditions see "general technical information"
    rated ambient temperature -20... +55 °C
    range
    dimensions (h x w x d) design K: 75 x 22.5 x 110 [ mm ]
    attachment on 35 mm DIN rail according to DIN EN 50 022
    or with screws M4
    protection housing / terminals IP 30 / IP 20
    weight approx. 110 g

    18 ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de 2018-03-29

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