Crouse-Hinds MTL F300 Kullanım Kılavuzu - Sayfa 7

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the careful routing and securing of all cables.

d) Provide adequate security against unauthorized interference.

e) Conform to the permitted ambient temperature range of –45°C to +70°C.

4 .2 .2

In addition to the General Requirements above, if the Megablock is mounted in an

outdoor location, use a suitable enclosure with a minimum of IP54 ingress protection.

A higher level of ingress protection rating will be necessary if the working atmosphere

is, or can be, corrosive, or if the enclosure is subject to wet or dusty environments.

4 .3

DIN-rail mounting

The Megablocks are designed for mounting on 35mm x 7 .5mm T-section "top hat" DIN

rail to EN50022 and use built-in DIN rail clips to attach to the rail.

4 .3 .1

Megablocks are attached to the DIN rail using a "push-and-tilt" method - as illustrated

on the body label and in Figure 4.1 below.

Tilt the Megablock towards the trunk-connector side of the Megablock and then

engage the DIN-rail clips under the ledge of the DIN rail. Push the Megablock against

the edge of the rail then rotate the Megablock until it sits flat onto the DIN rail, then

release the pressure to allow the clips on the other side to engage.

Figure 4 .1: DIN Rail Installation and Removal

4 .4

Refering to Figure 4.1, push the Megablock against the edge of the DIN rail, tilt the

other side of the Megablock up and away from the DIN rail, then release the side

pressure to disengage the DIN rail clips from the DIN rail ledge.

The Trunk and Spur connectors are pluggable (with securing screws) and available

in the standard screw-terminal version or a spring-clamp version. Megablocks with

spring clamp connectors have a –PC suffix on the Megablock part number (-PC). See

Figures 5.1 and 5.2. The terminals can accept the following conductor sizes:

Type

Screw terminals

Spring clamp terminals (-PC)

A torque screwdriver set between 0.5 - 0.6Nm is recommended for tightening all

INM F300 rev 6

DRAFT - 09 July 2019

Outdoor mounting

Mounting procedure

Push

Conductor size

0.14 to 2.5mm

0.20 to 2.5mm

Remove

Install

NOTE

terminal screws.