Maximum distance for input logic connections on TeSys T LTMR devices
Issue:
What is the maximum distance for input logic connections on TeSys T LTMR devices
Product Line:
TeSys T LTMR Motor Management Controller
Environment:
NEMA and IEC Starters protection components
Cause:
Long wire distances can create EMC disturbance effects on the LTMR controller.
Resolution:
The maximum distance allowed without interposing relay is addressed below:
| Wire Size | 1 mm2 (AWG 18) | 1.5 mm2 (AWG 16) | 2 mm2 (AWG 14) | 2.5 mm2 (AWG 14) |
| Maximum distance for wires | 210 m (689 ft) | 182 m (597 ft) | 163 m (535 ft) | 149 m (489 ft) |
However, due to variability of installations it is highly recommended to use interposing relays for control cable lengths longer than 100 m (328 ft).
Released for: Schneider Electric Canada
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