3TK2804 0BB4 PDF

Contactor Safety Combination. Order No. Operation permissible in switchgear cabinet with degree of protection. IP 54 only! Functions and connections.

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Contactor Safety Combination. Order No. Operation permissible in switchgear cabinet with degree of protection. IP 54 only! Functions and connections. The internal control circuit of the contactor safety combination is designed. The supply voltage must meet the requirements of the. The contacts of the contactor relays are checked for pro-.

This is, for instance, done by. For circuit diagrams, see:. For internal circuit diagrams, see Low-Voltage Control Equipment,. Switchgear and Systems Catalog.

Note: The units are tested by the BIA. The external control circuit connec-. Further applications available upon request. For dimension drawings see Fig. I dimensions in mm. Minimum clearances from earthed parts on the sides: 3 mm see Fig.

Connection see Fig. Cover the contactor safety combination during installation if foreign. Install contactor safety combi-. Permissible operating position: any. Cleaning: Remove dust with a vacuum cleaner. Operating states of the unit:. Technische Daten. Permissible ambient temperature T U :. Degree of protection. IP Control circuit: 1. Rated insulations voltage. Rated impulse withstand voltage.

Utilization category. Part IEC Rated operating current. Rated power. Continuous current Ith. Making capacity at:. AC V. DC 24 V. Short-circuit protection for signal circuit and enable circuit:. No-weld fuse protection. Fusing of contactor safety combination:. Be sure to fit the specified fuses. Otherwise safe interruption in the. For further data and Order nos. Kanal 1. Channel 1. Kanal 2. Channel 2. III a. Download 3TK Datasheet. Operation permissible in switchgear cabinet with degree of protection IP 54 only!

The contacts of the contactor relays are checked for pro- per opening and closing in every ON and OFF cycle of the machine to be swit- ched. For circuit diagrams, see: Fig. The external control circuit connec- tions are shown for example only; the actual connections must be defined by the user on the basis of a risk assessment.

Installation For dimension drawings see Fig. Cover the contactor safety combination during installation if foreign particles, such as swarf, can fall onto it. Install contactor safety combi- nations in a housing if they are exposed to dirt, dust or aggressive atmospheres. Otherwise safe interruption in the event of a fault cannot be guaranteed.

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3TK2804-0BB4

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