13.3 Relay module—Option for Universal/Un
The relay module is a unique variant available for a Universal and Un control model only. The relay module
is mounted on the opposite side of the pumphead.
The general arrangement is shown below :
13.3.1 Relay module specifications
Relay terminal connections
Relay contact rating
240 V AC 4 A
30 V DC 4 A
Cover ingress rating
IP66 (NEMA 4X)
Cable gland rating
IP66 (NEMA 4X)
13.3.2 Control cable specification requirements
Cable section profile
Circular
Outside diameter to ensure ingress
rating
9.5–12 mm
Cable conductors
0.05-1.31 mm
2
(30-16 AWG) stranded or solid
EMC protection
Use shielded control cable terminated to any of the provided Earth
connections.
Minimum temperature rating
85 °C
Maximum cables per gland
1
NOTE30
Two ½” cable glands provided
NOTE31
More than 8 conductors per cable may be awkward to handle.
13 INSTALLATION: PART 4 (CONTROL CONNECTIONS AND WIRING)
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