Concepto
Wire Sizes and Lengths for the RP-C 230 V Controller Models
This section provides recommendations on wires sizes and lengths for the RP-C 230 V controller models.
This applies to the following RP-C 230 V controller models:
RP-C-16A-F-230V, RP-C-16B-F-230V, and RP-C-16C-F-230V
Para obtener más información, consulte RP-C Models .
The recommendations are for guidance only. Other wire sizes and lengths may be used, depending on wiring rules and when appropriate.
Screw terminal number 3 differs between different hardware versions of the controller model RP-C-16A-F-230V. Para obtener más información, consulte Differences Between RP-C Hardware Versions .
|
Terminals |
Minimum Cross-sectional Area |
Maximum Cable Length |
|
Power input terminals (1, 2) |
0.75 mm² (18 AWG) a or larger according to local wiring rules |
According to local wiring rules |
|
Protective earth ground terminal (3) |
0.75 mm² (18 AWG) a or larger according to local wiring rules |
According to local wiring rules |
|
24 VAC output terminals (4, 5) b |
0.5 mm² (20 AWG) |
According to local wiring rules |
|
External (EXT) input c |
0.5 mm² (20 AWG) |
According to local wiring rules |
|
Universal inputs/outputs as digital d inputs |
0.34 mm² (22 AWG) |
200 m (650 ft) |
|
Universal inputs/outputs as analog e inputs |
0.34 mm² (22 AWG) |
100 m (330 ft) |
|
Universal inputs/outputs as temperature (thermistor) inputs, up to 75 °C (167 °F) |
0.75 mm² (18 AWG) |
75 m (250 ft) |
|
Universal inputs/outputs as temperature (thermistor) inputs, up to 75 °C (167 °F) |
1.5 mm² (15 AWG) |
150 m (500 ft) |
|
Universal inputs/outputs as temperature (thermistor) inputs, up to 150 °C (302 °F) |
1.5 mm² (15 AWG) |
75 m (250 ft) |
|
Universal inputs/outputs, for actuators and transmitters powered from the same transformer as the RP-C |
0.75 mm² (18 AWG) |
20 m (65 ft) |
|
Universal inputs/outputs, for actuators and transmitters powered from their own transformer (external or internal) |
0.34 mm² (22 AWG) |
200 m (650 ft) |
|
Universal inputs/outputs as voltage outputs, for actuators powered via their own transformer (external or internal) or when the outputs have isolated converters |
0.34 mm² (22 AWG) |
200 m (650 ft) |
|
Relay outputs b |
According to local wiring rules f |
According to local wiring rules f |
|
High power relay output b |
According to local wiring rules f |
According to local wiring rules f |
|
Solid-state relay (SSR) outputs |
0.5 mm² (20 AWG) f |
According to local wiring rules f |
- Use wires rated for at least 75 °C (167 °F).
- Not available on RP-C-16C-F-230V.
- Only available on RP-C-16C-F-230V. EXT Input is used for connection of an external power supply (24 VAC / VDC) to SSR outputs.
- Digital or counter inputs.
- Supervised, voltage, current, resistive, or 2-wire RTD temperature inputs.
- Confirm the voltage drop from the external load current and the wire resistance (the product of the wire size and length) to obtain the appropriate voltage arriving at the controlled field device (load), to reliably energize and maintain the control action.
I/O Wiring
Wire Sizes and Lengths
Wire Sizes and Lengths for the RP-C 24 V Controller Models
RP-C Controllers
RP-C Models
RP-C Screw Terminals
Wiring
Differences Between RP-C Hardware Versions