Surge arrester for protecting circuits
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English speaker +33535565788
Functions:
The surge arrester is composed of a semiconductor valve element (varistor) which opens under certain conditions.
Under standard conditions, the surge arrester has infinitely high resistance between the protected conductors and the earth.
At voltage increase due to atmospheric nature or system failure, the varistor opens and conducts the overvoltage towards the earth circuit.
After the standard voltage restores, the varistor closes.
Technical characteristics:
* Rated discharge current (In): the rated value of discharge current can be repeatedly led to the earth.
* Maximum discharge current (Imax): peak value of discharge current which the surge arrester can bear once.
* Rated operating voltage (Uc):
- feedback voltage of the surge arrester: 275/440V; 50Hz
* Surge voltage Up: the voltage created in surge arrester terminals at rated discharge current running.
* Constant operating current: up to 800µA for 1p, 2p, 3p ; up to 600µA for 1p+N, 3p+N
* Indication for damaged surge arrester
Mounting:
- on DIN rail.
- vertical position.
- mounting on the front of the distribution box.
- flexible or rigid conductors with corresponding section.
Based on 6
reviews
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François V.
Published Dec 06, 2024 at 07:15 pm (Order date: Dec 01, 2024)4Very good (Translated review)
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Sebastien C.
Published Dec 06, 2023 at 07:19 am (Order date: Nov 30, 2023)537 : Perfect (Translated review)
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Acheteur Vérifié
Published Jul 01, 2019 at 03:54 pm (Order date: Jun 23, 2019)5Compliant (Translated review)
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Acheteur Vérifié
Published Dec 12, 2018 at 09:58 am (Order date: Dec 05, 2018)433: Neutral on the right otherwise impeccable (Translated review)
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Acheteur Vérifié
Published Jan 05, 2017 at 10:22 pm (Order date: Dec 25, 2016)5perfect as usual (Translated review)
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Acheteur Vérifié
Published Aug 22, 2016 at 10:46 am (Order date: Aug 14, 2016)4Not yet installed. (Translated review)