WIRING INFORMATION
The length of RTD extension wires is determined by the wire
gauge used.
To reduce the likelihood that electrical noise will affect temperature
measurement, keep RTD extension wires as short as possible.
Use shielded instrument cable such as nVent RAYCHEM
MONI-RTD-WIRE (22AWG, PVC insulation, –30°F to 140°F,
–20°C to 60°C) or Belden 83553 (22 AWG, FEP insulation,
–95°F to 395°F, –70°C to 200°C).
Maximum RTD extension wire length
AWG
Feet
(meters)
16
4500
(1400)
18
2800
(880)
20
1800
(550)
22
1100
(340)
RTD4AL WIRING
Connect the wires as shown.
1 Note: Ground RTD extension wire shield at one
end only, preferably at RAYCHEM electronics end.
2 Note: RTD housing must be properly grounded
using the screw provided.
Electrical schematic of RTD
Red (Source)
White
Red
Red
Red (Compensate)
Field Wiring
White (Common return)
RTD DIRECT CONNECTION
Pipe strap
Place strap under heating cable
Conduit
drain
INSTALLATION WITH HEATING CABLE ELECTRICAL WIRING GUIDELINES:
Electrical Wiring Notes:
Most electrical codes (such as NEC Article 725) permit Class 1
circuits to occupy the same cable, enclosure, or raceway without
regard to whether the individual circuits are alternating current
or direct current, providing all conductors are insulated for the
maximum voltage of any conductors in the cable, enclosure or
raceway.
Additional Materials Required
• JBS-100-A or other power connection kit
• Pipe straps
Conduit
drain
JBS-100-A
Sensor
Splice box
(provided by others)
©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.
Raychem-IM-H56918-RTD4AL-EN-1805
PN 858160-000
nVent.com
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
