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Seira Elettronica S.r.l.

Via Ca’ del Bosco 1 - 37046 - MINERBE - VERONA - ITALY
Tel: +39 (0) 442 640955 | Fax: +39 (0) 442 640249
E-mail: seira@seiraelettronica.com

SMT Earth Connection

The EARTH CONNECTION SWITCH “SMT” has the aim to realize the opening of the connections to the high catenary voltage in full safety and to connect at ground all the circuits downstream the SMT Switch, to short-circuit the capacitors of the input HV filter and also the capacitors downstream of the HV Switching stage (and upstream of the three-phase inverter).

The connection to the ground happens rotating the handle bar on the cover, 300° clockwise. The cover can be easily indentified because the indications for the rotation are printed on it. The above mentioned handle bar can be rotated after having unlocked it using the appropriate square key.