A4US
US
A4
US A4
US
A4
6
4 - Electrical Connections
The RHS unit is powered from the IQ3 actuator so does
not require any supplementary power supply or protection
device. The single cable entry is located at the bottom of the
terminal housing and is supplied M25 as standard. A thread
adaptor can be supplied for other thread sizes including
imperial threads.
The interconnecting cable is not supplied. Below is a table of
the minimum cable specification for remote mounting up to
50 m and up to 100 m.
No. PARAMETER
BELDEN CABLE 3084A T5U500 (OR EQUIVALENT)
UP TO 100M
MINIMUM SPECIFICATION FOR UP TO 50 M
1 Type of Cable
Twisted pair shielded Twisted pair shielded
2 No. of Cores 4 (Data pair + Power pair) 4 (Data pair + Power pair)
3 Conductor Material Tinned Copper Tinned Copper
4
Core Insulation
Material
PVC (power)
FPE (data)
PVC
5 Shield Type Foil + Braid Braid
6
Shield Coverage
Braid ≥65%
Braid ≥65%
Foil = 100%
7 Outer Sheath PVC PVC
8
Data Pair
Capacitance
≤40 pF/m ≤70 pF/m
9
Conductor
Resistance
≤175 Ohm/km (Power)
≤280 Ohm/km (Data)
≤175 Ohm/km
≤280 Ohm/km (Data)
10 Current Rating ≥1
A ≥1 A
Note: For installation in hazardous areas suitable equivalent cables must be used in accordance with local regulations.
Cable Entry
Only appropriately certified flameproof cable glands or
conduit may be used in hazardous locations. The cable entry
is tapped M25 x 1.5p. In hazardous locations, only one
certified flameproof thread adaptor can be used.
For installation in USA and Canada
Conduit seals must be installed at the enclosure. M25 x 1.5p
to either
1
/2",
3
/4", 1", 1
1
/4" or 1
1
/2" NPT thread adaptors are
factory fitted.
CAUTION:
Wiring may exceed 70 ºC in a 70 ºC ambient.
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