DM 1/3/5 TP… Solid – Core Accuracy Current Transformers

Lovato Electric

DM 1/3/5 TP… Solid – Core Accuracy Current Transformers

DM 1/3/5 TP… Solid – Core Accuracy Current Transformers for Lovato Metering Instruments

  • The DM…TP type accuracy current transformers (CTs) are installed in an electrical system to reduce the line current to a secondary value of 5A compatible with the ammeter inputs of the digital multi-meters or protection relays. DM…TP are accuracy current transformers in class 0.5s without a primary winding and are normally used for high primary current values starting from 60A. The number of loops of the primary cable does not modify the accuracy but converts the primary current value proportional to secondary current.
  • Operational Characteristics: 

– Operating frequency: 50-60Hz.

– Secondary output current: 5A.

– Overload withstand: 120% Ipn.

– IEC rated insulation voltage UI: 720V.

– IEC rated short-time thermal current Ith: 40-60 Ipn for 1 second.

– IEC rated dynamic current Idyn: 2.5 Ith for 1 second.

– Insulation (dry tape): Class E.

– Terminals: Screw terminals.

– Sealable terminal covers.

– Fixing on 35mm DIN rail(IEX/EN 60715) or by screws (fixing elements standard supplied with product).

– IEC degree of protection: IP30.

– Ambient conditions: Operating temperature -25…+50 degrees Celsius; Storage temperature -40…+80 degrees Celsius; Relative humidity, non-condensing 90%.

  • Order Code Description
    DM1TP0060  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 60A; Burden(VA): Class 0,5 = 1.5, Class 1 = 1.5.
    DM1TP0080  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 80A; Burden(VA): Class 0,5 = 2.5, Class 1 = 2.5.
    DM1TP0100  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 100A; Burden(VA): Class 0,5 = 2.5, Class 1 = 3.75.
    DM1TP0150  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 150A; Burden(VA): Class 0,5 = 2.5, Class 1 = 3.75.
    DM1TP0200  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 200A; Burden(VA): Class 0,5 = 2.5, Class 1 = 3.75.
    DM1TP0250  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 250A; Burden(VA): Class 0,5 = 2.5, Class 1 = 5.
    DM1TP0300  For 28mm diameter cable. For 30x10mm, 25×12.5mm, 20x20mm busbar. Primary current/5 = 300A; Burden(VA): Class 0,5 = 2.5, Class 1 = 5.
    DM1TP0400  For 33mm diameter cable. For 40x10mm, 30x20mm, 25x25mm busbar. Primary current/5 = 400A; Burden(VA): Class 0,5 = 5, Class 1 = 5.
    DM1TP0500  For 33mm diameter cable. For 40x10mm, 30x20mm, 25x25mm busbar. Primary current/5 = 500A; Burden(VA): Class 0,5 = 5, Class 1 = 5.
    DM3TP0500  For 52mm diameter cable. For 60x20mm, 50x25mm busbar. Primary current/5 = 500A; Burden(VA): Class 0,5 = 3.75, Class 1 = 5.
    DM3TP0600  For 52mm diameter cable. For 60x20mm, 50x25mm busbar. Primary current/5 = 600A; Burden(VA): Class 0,5 = 5, Class 1 = 10.
    DM3TP0800  For 52mm diameter cable. For 60x20mm, 50x25mm bushbar. Primary current/5 = 800A; Burden(VA): Class 0,5 = 5, Class 1 = 10.
    DM3TP1000  For 52mm diameter cable. For 60x20mm, 50x25mm busbar. Primary current/5 = 1000A; Burden(VA): Class 0,5 = 5, Class 1 = 10.
    DM5TP1000  For 66mm diameter cable. For 100x20mm, 80x45mm busbar. Primary current/5 = 1000A; Burden(VA): Class 0,5 = 5, Class 1 = 10.
    DM5TP1250  For 66mm diameter cable. For 100x20mm, 80x45mm bushbar. Primary current/5 = 1250A; Burden(VA): Class 0,5 = 7.5, Class 1 = 10.
    DM5TP1600  For 66mm diameter cable. For 100x20mm, 80x45mm busbar. Primary current/5 = 1600A; Burden(VA): Class 0,5 = 7.5, Class 1 = 10.
    DM5TP2000  For 66mm diameter cable. For 100x20mm, 80x45mm bushbar. Primary current/5 = 2000A; Burden(VA): Class 0,5 = 10, Class 1 = 15.
    DM5TP2500  For 66mm diameter cable. For 100x20mm, 80x45mm busbar. Primary current/5 = 2500A; Burden(VA): Class 0,5 = 10, Class 1 = 15.
    DM5TP3000  For 66mm diameter cable. For 100x20mm, 80x45mm busbar. Primary current/5 = 3000A; Burden(VA): Class 0,5 = 10, Class 1 = 15.

(please see linked PDF’s for further information)