Novatech Bitronics PowerPlex II, User Manual, Page: 34 / 136

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ML0044B December 1, 2017 Copyright 2016 Bitronics, LLC
2.4.3 Overcurrent Protection – AUX PWR (Universal - High Range Power
Supply)
To maintain the safety features of this product an external fuse shall be provided at the
AUX PWR supply input and must be connected in series with the ungrounded/non-
earthed (hot) side of the supply input terminals prior to installation.
For UL/CSA, Bitronics recommends a UL 248-4 certified fuse, Class CC, rated 600
Vac/300 Vdc, 3 Ampere time delay (T) fuse (such as Littelfuse CCMR003 or Mersen
ATDR3).
For CE, Bitronics recommends a fuse certified to IEC 60127-2 Sheet 3, rated 250 Vac
(min or greater), 3.15 Ampere time delay (T) fuse.
The fuse shall additionally be enclosed in an appropriate fuse holder to prevent the
possibility of a fuse shattering and spraying metal pieces. The fuse and fuse holder
must carry a voltage rating that is appropriate for the power system on which it is
being used.
2.5 Supply/Mains Disconnect – AUX PWR (Universal – Hi Range Power Supply)
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.
2.6 Instrument Mounting
The instrument may be mounted on a 19" Rack panel if desired. Two PPX II units will
fit side by side on a standard 5.25" high (3U) panel. See Figure 2 for dimensions. The
unit should be mounted with four #10-32 (M4) screws.
Make sure that any paint or
other coatings on the panel do not prevent electrical contact.
2.7 Cleaning
Cleaning the exterior of the instrument shall be limited to the wiping of the instrument
using a soft damp cloth applicator with cleaning agents that are not alcohol based, and
are non-flammable and non-explosive.