120
Options List
B.3
Low DC Inlet Power Supply
B.3.1
22 Vdc to 67 Vdc ONLY, Terminal Power Strip, SWC
The Low DC power supply replaces the Universal power supply with a three-position, screw-type terminal
block, including Surge Withstand Capability (SWC). With DC ONLY inlet voltages from 22 Vdc to 67 Vdc,
this feature is intended for use in installations where it is necessary or desirable to have the instrument power
hard-wired.
WARNING:
Do not apply AC voltages to the inlet terminals.
Figure B.2: Low DC: Power Supply Inlet
DC+ DC- GND
22-67 VDC
<30W TYPICAL
DC ONLY
B.3.2
Specifications
Input Power
DC Voltage:
22 Vdc to 67 Vdc
Input Power:
<
20 Watts, typical
Terminal Strip
Terminal Assignment:
(+), (
−
), Ground
Left to right, viewed from rear
Block Size:
25 mm
×
15 mm
×
18 mm (0.98 in
×
0.59 in
×
0.71 in) (W x H x D)
Block Material:
Glass-filled thermoplastic
Screw Size:
6–32
×
1/4 in
Screw Material:
Cadmium-plated steel
Terminal Spacing:
5 mm (0.196 in)
Approvals:
U.L. recognized; C.S.A. approved
Fuse
Arbiter P/N:
FU0003100
Current Rating:
8 A, time lag
Voltage Rating:
400 Volts
Size:
5 mm
×
20 mm
Surge Withstand Protection (SWC)
Provides input Surge Withstand Capability (SWC) in compliance with both ANSI C37.90 and IEC 801-4.