Installation and Connection
Installation Diagram
Even when the auxiliary voltage is switched-off, unsafe voltages remain at
the device connections.
B1 Housing Door Cut-out
The housing must be carefully earthed. Connect a ground cable (4 to 6 mm
2
(AWG 12-10) / 1,7 Nm [15 In-lb]) to the housing, using the screw, which is
marked with the ground symbol (at the rear side of the device).
The power supply card needs a separate ground connection (2.5 mm
2
(AWG 14) at terminal X1 (0.56-0.79 Nm [5-7 In-lb]).
Be careful. Do not overtighten the mountings nuts of the relay
(M4 metric 4 mm). Check the torque by means of a torque wrench (1,7 Nm
[15 In-lb]). Overtightening the mounting nuts could due to personal injury
or damage the relay.
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EN MRU4 10/09
