Power Supply And Protective Ground (Earth) Connections; Overcurrent Protection; Supply/Mains Disconnect - Novatech Bitronics M87X Series Manual

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6.4 Power Supply and Protective Ground (Earth) Connections

Power and chassis ground is applied to three screws on a barrier strip on the front of the

Power Supply input module.

Connection of the chassis ground is required (see

Section 2.3). There are two chassis ground points that MUST be connected to Earth

Ground. One is the Protective Ground (Earth) terminal (terminal 2) on the Power Supply

input, and the other is the mounting flange. Bitronics LLC recommends that all grounding

be performed in accordance with ANSI/IEEE C57.13.3-1983.

To maintain the safety features of this product, a 3 Ampere time delay (T) fuse must be

connected in series with the ungrounded/non-earthed (hot) side of the supply input prior to

installation. The fuse must carry a voltage rating appropriate for the power system on

which it is to be used. A 3 Ampere slow blow UL Listed fuse in an appropriate fuse holder

should be used in order to maintain any UL product approval.

Equipment shall be provided with a Supply/Mains Disconnect that can be actuated by the

operator and simultaneously open both sides of the mains input line. The Disconnect

should be UL Recognized in order to maintain any UL product approval. The Disconnect

should be acceptable for the application and adequately rated for the equipment.

ML0021

August 15, 2018

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