RT411
Chapter 4
–
Installation
22
RT411
Figure 6: Supply connector assembly
A 1.5 mm² ground lead must be connected to the terminal marked with the protective
ground symbol for EMC purposes.
Figure 7: RT411 power connection
For AC power connection, the phase conductor must be applied to terminal (+/L),
neutral conductor to terminal (-/N) in the supply terminals identified as illustrated
below
.
For DC power connection, the positive line should be applied to terminal (+/L), negative
to terminal (-/N) in the supply terminals identified as illustrated below.
For compliance with IEC 61010, install a suitable external switch or circuit breaker in
each current-carrying conductor of RT411 power supply; this device must interrupt both
the hot (+/L) and neutral (-/N) power leads. An external 10 A, category C, bipolar circuit-
breaker is recommended. The circuit breaker should have an interruption capacity of at
least 25 kA and comply with IEC 60947-2. The switch or circuit-breaker must be suitably
located and easily reachable, also it must not interrupt the protective ground
conductor.
Grounding (Earthing)
To ensure proper safety and performance, the case protective ground connection must
be grounded to the panel using a 10mm width copper strap (minimum) with M6 ring lug
connector.
