CPC 485 - Transformers; Overview; Specifications

Peripherals Manual Transformers • 47
Transformers
3 Board–P/N 640-0043
6 Board–P/N 640-0045
10 Board–P/N 640-0048
Overview
CPC supplies three different types of transformers for
use in powering CPC input and output boards: the three-
board transformer (P/N 640-0043), the six-board trans-
former (P/N 640-0045), and the ten-board transformer
(640-0048). As the names imply, each transformer is de-
signed to power three, six, or ten I/O boards.
Three-board, six-board, and ten-board refer to the num-
ber of 8RO boards that may be powered by one transform-
er. When 16AI, 4AO, and 8IO boards are powered by a
transformer, a three-board transformer may be able to pow-
er more or less than three boards. Total VAs must be
matched for proper selection of a transformer.
Specifications
Transformer 3 Board (640-0043) 6 Board (640-0045) 10 Board (640-0048)
Series
Signal Transformer 241 Signal Transformer 241 Signal Transformer A41
Power
56 VA 100 VA 175 VA
Dielectric Strength
2500 VRMS Hipot 2500 VRMS Hipot 4000 VRMS Hipot
Primaries
Dual primaries (115/230 V - 50/
60 Hz
Dual primaries (115/230 V -50/
60 Hz)
Dual primaries (115/230 V -
50/60 Hz)
Secondary
Single center tapped secondary Single center tapped secondary Two secondaries must be
connected in series
Secondary RMS Rat-
ing
24 VCT @ 2.4 A 24 VCT @ 4.0 A 24 VCT @ 7.3 A
Terminals
Solder lug / quick-connect type
terminals (0.187”x0.020”)
Solder lug / quick-connect type
terminals (0.187”x0.020”)
Solder lug / quick-connect
type terminals
(0.250”x0.031”)
Insulation
Class B insulation (130° C) Class B insulation (130° C) Class F insulation (155° C)
Agency Standards
-UL recognized to UL 506
-CSA certified to C22.2 #66
-UL recognized to UL 506
-CSA certified to C22.2 #66
-UL recognized to UL 506
-CSA certified to C22.2 #66
-VDE certified to VDE 0805
/ EN 60950
-VDE certified to IEC 950
-Leakage current to meet UL
544