Mechanical Installation; Input Wiring - Tb1 - Ametek CSW5550 User Manual

User Manual

3.3 Mechanical Installation

The CSW series power sources are completely self-contained power sources. They may be
used free standing on a bench top or rack mounted using the rack mount/handle kit. The units
are fan cooled, drawing air in from the sides and exhausting at the rear. The sides of each unit
must be kept clear of obstruction and a 6" clearance must be maintained to the rear. Special
consideration of overall air flow characteristics and the resultant internal heat rise must be
allowed for with systems installed inside enclosed cabinets to avoid self heating and over
temperature problems.
Refer to Paragraph 2.2 for information on outline and mounting dimensions of the unit. Refer to
Figure 3-3, Paragraph 3.6 and sub-paragraphs for rear panel connector information.
TYPE
Mounting Kit (for slides)
Slides
3.4 Input Wiring – TB1
The input terminal block, TB1, is located at the rear of the unit. Ground (earth) wire must be
connected to the chassis of the AC power system. The mains source must have a current rating
equal to or greater than the input circuit breaker and the input wiring must be sized to satisfy the
applicable electrical codes. The input terminal block cover and strain relief must be installed in
table top applications to maintain protection against hazardous voltages.
CAUTION: Capacitors in the power source may hold a hazardous electrical charge
even if the power source has been disconnected from the mains supply. Allow
capacitors to discharge to a safe voltage before touching exposed pins of mains
supply connectors.
3.4.1 187 to 264 VRMS L–L 3-Phase Operation (3-Wire USA)
Connect the input wires to the phase A, B, and C input terminal block terminals
(no Neutral is required). Ensure that the chassis safety ground is also connected. Use cables with
ratings equal to or greater than the current rating listed on the unit or in Paragraph 3.5.1. Any phase
sequence of wiring can be used.
3.4.2 342 to 457 VRMS L–L 3-Phase Operation (4-Wire INTL)
It is essential that the Neutral connection is present when using the unit. Only units that are factory set at
this voltage will operate at this voltage.
Connect the input wires to phases A, B, C and Neutral of the input terminal block. Ensure that the
chassis safety ground is also connected. Use cables with ratings equal to or greater than the current
rating listed on the unit or in paragraph 2.1.1.
CSW Series
MANUFACTURER
Jonathan
Accuride
Recommended Mounting Slide
California Instruments
PART NUMBER
BK-3
C-3307-16D
29