Nexans Euromold 156SA Surge Arrester
Product overview
Nexans Euromold 156SA Surge Arrester
Nexans Euromold 156SA Surge Arrester is designed to protect 12kV and 24kV class components, including transformers, equipment, cable and accessories from high voltage surges resulting from lightning or switching.
Part Numbers: 156SA-12, 156SA-15, 156SA-18, 156SA-21, 156SA-24.
Euromold 156SA used for medium/high voltage cables in the following voltage classes:
- 6/10 (12kV)
- 6.35/11 (12kV)
- 8.7/15 (17.5kV)
- 12/20 (24kV)
- 12.7/22 (24kV)
Technical Characteristics
- This surge arrester is a metal oxide varistor surge arrester in an elbow configuration.
- Each arrester is tested for AC withstand and partial discharge prior to leaving the factory.
Specification & Design
| Euromold Surge Arrester Type |
Nominal Discharge Current In |
Rated Voltage Ur |
Max Continuous Operating Voltage Uc |
| 156SA-12 | 5 kA | 15 kV | 12.5 kV |
| 156SA-15 | 5 kA | 19 kV | 15.5 kV |
| 156SA-18 | 5 kA | 22 kV | 18 kV |
| 156SA-21 | 5 kA | 26 kV | 21 kV |
| 156SA-24 | 5 kA | 30 kV | 24.5 kV |
Surge arrested comprising:
- Bail restraint
- Conductive EPDM insert
- Type A – 250 A Interface as described by CENELEC EN 50180 and 50181
- Pin contact
- Contact disc
- Copper shunt
- Metal oxide valve elements
- Aluminium spacer
- Steel cap
- Earth connection
- Insulating EPDM layer moulded between the insert and the jacket
- Conductive EPDM jacket
Typical Application & Dimensions
For Ordering Instructions and Part Number Selection Table of Nexans Euromold 156SA Surge Arrester, please refer to the Technical Data Table Below. For additional General and Technical Information, download PDF File.
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+44 (0)1744 762 929Technical Data
ORDERING INSTRUCTIONS FOR 156SATo order the surge arrester, specify the surge arrester type. Example: For a maximum continuous operating voltage (r.m.s.) of 21 kV, order an 156SA-21 surge arrester. |
| Euromold Surge Arrester Type |
Nominal Discharge Current In |
Rated Voltage Ur |
Max Continuous Operating Voltage Uc |
Steep Current Residual Voltage @ 5 kA [1/20 μs] |
Lightning Current Residual Voltage @ 5 kA [8/20 μs] |
High Current Impulse Withstand |
| 156SA-12 | 5 kA | 15 kV | 12.5 kV | 62.5 kV | 54.5 kV | 40 kA |
| 156SA-15 | 5 kA | 19 kV | 15.5 kV | 77 kV | 69 kV | 40 kA |
| 156SA-18 | 5 kA | 22 kV | 18 kV | 87 kV | 79 kV | 40 kA |
| 156SA-21 | 5 kA | 26 kV | 21 kV | 101.5 kV | 93.5 kV | 40 kA |
| 156SA-24 | 5 kA | 30 kV | 24.5 kV | 116.5 kV | 108.5 kV | 40 kA |