Eaton Crouse-Hinds MTL F300 Series - DIN-Rail Mounting; Removal from DIN-Rail; 5 Electrical Connections

3INM F300 rev 7
d) Provide adequate security against unauthorized interference.
e) Conform to the permitted ambient temperature range of –45°C to +70°C.
4.2.2 Outdoor mounting
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 Mounting procedure
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.
1
Remove
Install
Push
2
Figure 4.1: DIN Rail Installation and Removal
4.4 Removal from DIN-rail
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.
5 ELECTRICAL CONNECTIONS
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 Conductor size
Screw terminals 0.14 to 2.5mm
2
Spring clamp terminals (-PC) 0.20 to 2.5mm
2
NOTE
A torque screwdriver set between 0.5 - 0.6Nm is recommended for tightening all
terminal screws.