Siemens TL.. Manual de instrucciones descargar pdf (Pagina 14)

Installation Instructions

Electronic Trip Unit

Before attempting to install the trip unit, check the label on the

side of the unit to make sure that it is the correct unit for the

SB breaker. A built-in rejection scheme will prevent the instal-

lation of a trip unit into a breaker for which it is not intended.

4. Check label on side of trip unit.

This scheme consists of two pins on the support plate on

which the trip unit will set and two matching holes in the bot-

tom of the trip unit. If the holes in the bottom of the trip unit

do not aligned with the pins, the trip unit cannot be installed in

the SB breaker. If there is any doubt about a trip unit being the

correct unit for a breaker, hold the trip unit upside down and

check the alignment of the pins and holes.

5. Mate pin connectors.

Mate the connector half on the back of the trip unit with its

corresponding connector half in the breaker.

6. Lower trip unit onto support plate.

After the connector has been mated, lower (push) the trip unit

onto the support plate. The pins on the support plate will ﬁt

into the holes in the bottom of the trip unit.

7. Secure trip unit.

Secure the trip unit in place with the retaining screw located at

the top of the trip unit. Torque 6 to 8 in-lbs. If the trip unit top is

not secured correctly, the interlock will prevent the breaker

from closing.

NOTE: Before energizing breaker, be sure to install a

correct rating plug. See page 13.

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Siemens TL.. Manual de instrucciones Pagina 14