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MTL4526 Switch operated relay 2–channel IS–output From MTL INST UK, MTL Barrier

Categories MTL4500 Series Safety Barriers
Place of Origin: UK
Brand Name: MTL
Certification: CE
Model Number: MTL4526
MOQ: 10 Pcs
Packaging Details: carton
Delivery Time: approx. 4 weeks
Payment Terms: T/T payment
Supply Ability: 300 pcs
Price: according to the purchase quantity
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    MTL4526 Switch operated relay 2–channel IS–output From MTL INST UK, MTL Barrier

    MTL4526 Switch operated relay 2–channel IS–output

    MTL4526 enables two separate IS circuits in a hazardous area to be contact controlled by one or two, on/off, control signals in a safe area. Applications include the calibration of strain–gauge bridges; changing the polarity (and thereby the tone) of an IS sounder; the testing of IS fire alarms; and the transfer of safe-area signals into an annunciator with IS input terminals not segregated from each other. The output–relay contacts are certified as non–energy–storing apparatus, and can be connected to any IS circuit without further certification, provided that separate IS circuits are such that they would remain safe if connected together.


    See also common specification

    Number of channels

    Two, fully floating

    Location of control circuit

    Safe area

    Input/output characteristics

    Contact/Logic mode

    (Inputs suitable for switch contacts, an open–collector transistor or logic drive)

    Relay energised if < 450Ω or < 1V applied

    Relay de–energised if > 5kΩ or > 2V applied (35V max.)

    Loop powered mode

    Relay energised if >20V

    Relay de-energised if <17V

    Power supply failure protection

    Relays de–energised if supply fails

    Response time

    25ms nominal

    Contacts (suitable for connection to IS circuits)

    1–pole changeover per channel

    Contact rating

    250V dc, limited to 30V dc for IS applications, 2A

    (reactive loads must be suppressed)

    Contact life expectancy

    2 x 107operations at maximum IS load

    Relay drive (see switch setting table)

    Choice of "loop-powered" or "contact/logic" control, for both

    channels, by switch selection. A further switch option ("1in2out")

    enables either input, in contact/logic mode, to activate both outputs.

    Quality MTL4526 Switch operated relay 2–channel IS–output From MTL INST UK, MTL Barrier for sale
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