User manual

741.011 | 12.18

5.3.2 Preparing the cable openings

The cables can be fed through openings in the rear wall of the casing or at the bottom

of the casing. The openings are pre-punched and must be prepared as required before

installation.

Prepare the cable openings in the rear wall of the casing as follows:

1. Break out the cable openings  (Fig. 3) using a suitable tool.

2. Deburr the edges.

Prepare the cable openings at the bottom of the casing as follows:

1. Cut the required cable openings

 (Fig. 3) at the left and right using a suitable knife

and break them out.

2. Deburr the edges.

5.3.3 Connecting the cables

√ All cables are voltage-free.

√ The cable openings have been prepared.

X Observe the following points when connecting the cables:

• Connect the cable conductors to the correct terminals as described in Sec-

tion 5.4, p. 11.

• Mains input and output: First connect PE, then N and L.

• Strain relief:

– First clamp the lower strain relief clamps and then the upper strain relief

clamps.

– When using the upper strain relief clamps, use the plastic links as described

below.

– If the opening in the strain relief clamp is too large, e.g. in the case of thin ca-

bles, turn over the strain relief clamping bar (with the bend facing down). Only

use the strain relief clamps for cables entering the bottom of the casing. Use

external strain relief clamps when feeding cables through the rear of the casing.

5.3.4 Inserting/Removing plastic links

Insert the plastic links as follows:

1. Insert the right plastic strip with the latching protrusion first  (Fig. 4).

2. Press the other side of the plastic strip down

, until the spring clamp latches into

place.

3. Insert the left plastic strip the other way around (latching protrusion to the left,

spring clamp to the right).

Fig. 4: Inserting the right plastic link