P2.x AMEX
Properly connect the sample gas pump per the respective wiring diagram (see below). If the wiring diagram inside the cover of
the terminal box is different, observe that instead.
The terminal box has a Ø22 mm bore for installing a 1/2" NPT cable fitting as per NEC Standard requirements. Ensure the con-
necting cable has adequate cable relief.
The supply line and earthing cross-sections must be aligned with the rated current. Use a minimum line cross-section of 1.5
mm
2
.
Be sure to connect the following protective earth terminals to your on-site earth conductor per local regulations:
– Protective earth terminal inside the motor terminal box.
– Protective earth terminal on the mounting bracket.
Stray electric currents may not flow through this connection.
No foreign objects, contaminants or moisture may be inside the junction box.
To maintain the IP rating specified by the manufacturer, when sealing the terminal box with the cover ensure the original seal is
correctly seated and tighten the bolts at 1.6 - 2 Nm.
Be sure to observe any varying information in the rating plate. The conditions at the site must correspond with all rating plate
information.
14
Bühler Technologies GmbH
BE420003 ◦ 08/2021
