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TRIP UNIT NSX250 DC 3P 250A TMD front

TRIP UNIT NSX250 DC 3P 250A TMD

TM250D/DC is a 3 poles thermal-magnetic trip unit used on ComPacT NSX 250DC circuit breakers. This 250A rating thermal-magnetic trip unit is an optimal choice for DC distribution systems. It embeds an adjustable thermal overload protection and an adjustable magnetic protection against short-circuits.
SKU: C253TM250D

  • Product Info

    Range ComPacT new generation
    Range of product ComPacT NSX100...250 DC new generation
    Product or component type Trip unit
    Trip unit name TM-D
    Trip unit technology Thermal-magnetic
    Range compatibility ComPacT new generation NSX250 DC
    Device application Distribution
    Poles description 3P
    Protected poles description 3D
    Trip unit protection functions LI
    Protection type L : for overload protection (thermal)
    I : for short-circuit protection (magnetic)
    Trip unit rating 250 A at 40 °C
    [Ue] rated operational voltage 750 V DC
    Network type DC
    Circuit breaker mounting mode Fixed
    Complementary
    Long-time pick-up adjustment type Ir (thermal protection) Adjustable
    [Ir] long-time protection pick-up adjustment range 0.7...1 x In
    Long-time protection delay adjustment type tr Fixed
    Instantaneous protection pick-up adjustment type Ii Adjustable
    [Ii] instantaneous protection pick-up adjustment range 5...10 x In
    earth-leakage protection Without
    Environment
    Standards EN/IEC 60947-2
    Electrical shock protection class Class II
    Pollution degree 3 conforming to IEC 60947-1
    IP degree of protection IP40 conforming to IEC 60529
    Ambient air temperature for operation -25…70 °C
    Ambient air temperature for storage -50…85 °C
    Packing Units
    Unit Type of Package 1 PCE
    Number of Units in Package 1 1
    Package 1 Height 6.6 cm
    Package 1 Width 10.0 cm
    Package 1 Length 11.5 cm
    Package 1 Weight 420.0 g
    Unit Type of Package 2 S03
    Number of Units in Package 2 28
    Package 2 Height 30.0 cm
    Package 2 Width 30.0 cm
    Package 2 Length 40.0 cm
    Package 2 Weight 12.16 kg

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