Siemens SIPROTEC 7SA6 Manual page 581

Distance protection relay for all voltage levels

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Table of Contents

Installing a 7SA612 with a four-line display in a rack or cubicle (housing width

as an example

Panel Surface

C53000-G1176-C156-2

Mounting bracket

Annunciation

Annunciation

Mounting bracket

Connect the plug terminals and/or the screwed terminals on the rear side of the de-

vice according to the wiring diagram for the rack.

When using forked lugs or directly connecting wires to screwed terminals, the

screws must be tightened so that the heads are even with the terminal block before

the lugs or wires are inserted.

A ring lug must be centred in the connection chamber so that the screw thread fits

in the hole of the lug.

Section 2.1 has pertinent information regarding wire size, lugs, bending radii, etc.

Secure the device to the panel with four screws. For dimensions refer to Figure

10-11 to 10-13 in Section 10.22.

Connect the ground of the device to the protective ground of the panel. The cross-

sectional area of the ground wire must be greater than or equal to the cross-sec-

tional area of any other control conductor connected to the device. Furthermore, the

cross-section of the ground wire must be at least 2.5 mm

Connect solid, low-impedance operational grounding (cross-sectional area ≥

) to the grounding surface on the side. Use at least one M4 screw for the

device ground.

Connections according to the circuit diagram via screw terminals, connections for

optical fibres and electrical communication modules via the inclined housings. Sec-

tion 2.2 has pertinent information regarding wire size, lugs, bending radii, etc.

Installation and Commissioning

of 19 inch rack)