A Specifications - Siemens MJ-XL Installation And Operation Manual

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Appendix A Specifications

A Specifications

Operational Requirements
Temperature
Operating: -40° C to +85° C
Storage: -40° C to +85° C
Humidity
Operating: Relative humidity of 5% to 95% non-condens-
ing
Storage: Relative humidity of 5% to 95% non-condensing
(U2 and P2 range)
80 to 145 volts RMS
Frequency
45 to 65 Hz
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Accuracy
Metering accuracy*: ± 0.5% over the -40° C to +85° C oper-
ating range.
* Basic accuracy of the MJ-X
former or Current Transformer errors).
Electrical transient immunity
L
The MJ-X Current Transformer (CT) withstands a sudden
open circuit without damage to the control circuit. How-
ever, an open CT circuit can result in dangerously high
voltage, and should be avoided.
L
The MJ-X Control Panel is impervious to electrical tran-
sients as defined by the following:
Surge: ANSI/IEEE C37.90.1-1989
All PDS and terminal strip connections
High Energy Surge: ANSI/IEEE C62.41-1980
U2 and P2 inputs only
Not susceptible to upset due to high radio frequency inter-
ference (RFI) defined by the following:
RFI Susceptibility: ANSI/IEEE C37.90.2-1987.
Siemens Power Transmission & Distribution, Inc.
L
(excludes Potential Trans-