Allen-Bradley 1606-XLS960BUFFER, Reference Manual, Page: 17 / 24

Rockwell Automation Publication 1606-RM105A-EN-P - July 2020 17
Dielectric Strength
The signal port (active and ready signal and inhibit input) is floating and
separated from the supply voltage.
The manufacturer conducts type and factory tests. Field tests can be conducted
in the field using the appropriate test equipment, which applies the voltage
with a slow ramp (2 seconds up and 2 seconds down). Connect all poles of the
power port terminals together and all poles of the signal port before
conducting the test. When testing, set the cutoff current settings to the value
in the table below. The following isolation tests were performed:
Figure 12 - Dielectric Strength
Approvals
Test or Setting Time A B C
Type test 60 s 500V AC 500V AC 500V AC
Factory test 5 s 500V AC 500V AC 500V AC
Field test 5 s 500V AC 500V AC 500V AC
Cutoff current
setting
— > 1 mA > 1 mA > 1 mA
Supply
Voltage
Chassis
Active and Ready Signal
Inhibit Input
A
C B
Approval Name Approval Symbol Notes
EU Declaration of Conformity
The CE marking indicates conformance with the EMC
Directive
IEC 60950-1 2
nd
Edition CB Scheme, Information Technology Equipment
UL 60950-1 2
nd
Edition
Recognized for use as Information Technology
Equipment, U.S.A. (UL 60950-1), and Canada (C22.2 No.
60950-1); E-File: QQGQ(2,8). E168663
UL 508
Listed for use as Industrial Control Equipment; U.S.A.
(UL 508) and Canada (C22.2 No. 107-1-01); E-File:
NMTR(7).E56639
IND. CONT. EQ.