Protecting Individual PTA
Net of Energy
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The protecting type PTA-1-VVV is projected for local protection of electronic equipments, especially sources of systems Ks and PABX of small load and radios of low potency, against sobretensões and transientes provoked by fall of rays or inductions of the net of energy, guaranteeing a safe operation and without interruptions for these equipments.
The protection is made through varistores of oxide of zinc of high acting, installed among phase/earth, phase/neutral and neutral/earth, with purpose of minimizing it burns and to protect all the possible roads of entrance of the transientes.
| Technical specifications |
PTA-1-120 |
PTA-1-220 |
| Nominal tension of operation (Vef, 60Hz) |
110 / 127 |
220 |
| Current load maxim (THE) |
10 |
10 |
| Nominal tension of varistor for 1mA (V) |
240 |
390 |
| Maximum residual tension for 50 THE, 8/20us (V) |
400 |
650 |
| Maximum current 8/20us, 01 application (kA) |
8 |
8 |
| Energy maximum absorvível with wave 10/1000us (J) |
85 |
140 |
| Time of answer (ns) |
smaller than 50 |
smaller than 50 |
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Mechanical characteristics |
Dimension (mm) |
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| Box
in Steel 1.010/1.020 with surface finish in gray epóxi.
Cable of 1mm2 with plugue of 2 poles + earth, 1,5 m length. Taking of 2 poles + polarized earth. |
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