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TM - Single phase cast resin measuring (potential) transformer

Transformer for measuring instruments, energy counters, protection relays, etc.

Series: 
TM
single phase cast rsein potential transformer
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  • Single input 100V up to 500V or 100 V / root3 up to 500 V / root3
  • Single output 100V or 110V or 100 V / root3 or 110 V / root3
  • Rating for Class 0,2 / 0,5 / Class 1
  • Advantages of cast resin technique:
    • Protection against corrosive environments
    • Suitable for elevated vibration levels
    • No damange of wire isolation due to current peaks
    • Reduction of noise and internal vibrations

Products in this family

Reference Description Rating Input voltage Output voltage
TM50 cast resin measuring transformer 2/5/7,5 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM51 cast resin measuring transformer 5/10/15 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM52 cast resin measuring transformer 10/15/25 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM53 cast resin measuring transformer 15/30/50 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM55 cast resin measuring transformer 30/50/75 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM57 cast resin measuring transformer 50/75/100 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM510 cast resin measuring transformer 75/100/150 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM515 cast resin measuring transformer 100/150/200 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **
TM520 cast resin measuring transformer 150/200/300 VA (Cl 0,2/0,5/1) 100 .. 500V * 100 or 110V **

Dimensions and weights

Reference Description Rating Dimensions mm Weight kg Fig
A B C D E Ø
TM50 cast resin potential transformer 2/5/7,5 VA (Cl 0,2/0,5/1) 96 112 116 96 77 6 3.7
TM51 cast resin potential transformer 5/10/15 VA (Cl 0,2/0,5/1) 108 122 125 106 89 6 4.7
TM52 cast resin potential transformer 10/15/25 VA (Cl 0,2/0,5/1) 108 122 135 106 89 6 5.4
TM53 cast resin potential transformer 15/30/50 VA (Cl 0,2/0,5/1) 126 145 147 125 102 7 7.1
TM55 cast resin potential transformer 30/50/75 VA (Cl 0,2/0,5/1) 126 145 167 125 102 7 9.1
TM57 cast resin potential transformer 50/75/100 VA (Cl 0,2/0,5/1) 126 145 177 125 102 7 10.3
TM510 cast resin potential transformer 75/100/150 VA (Cl 0,2/0,5/1) 150 165 180 145 125 7 13.3
TM515 cast resin potential transformer 100/150/200 VA (Cl 0,2/0,5/1) 150 165 190 145 125 7 14.8
TM520 cast resin potential transformer 150/200/300 VA (Cl 0,2/0,5/1) 150 165 210 145 125 7 16.9

Technical characteristics

Insulation Class B - 130º C
Windings Class HC - 200ºC
Accuracy class
0,2, 0,5 and 1 according to rating
Cover Cast resin
Frequency 50-60 Hz
Protection degree
IP-20
Standards IEC/EN/UNE-EN 61869-3, CE
Remarks Low losses core
Options Input voltage up to 7,2 kV (please consult)
Protection transformer class 3P or 6P (please consult)
Thermal rating 6 times nominal rating
Continuous over voltage 1,2 times nominal voltage
Ambient temperature
50ºC
Test voltage
3 kV (1 min, 50 Hz)

Related content

Please register or login to see all documents and information related to this item
Declaration of Conformity CE (PTM-TM)
Installation and maintenance manual (Pxx, Qxx & Nxx series)