List of abbreviations
C.1 Table of abbreviations
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
471
RCR Residual Current Release
REC Reclose (automatic reset)
RJ [connector] Registered Jack
RMS Root Mean Square
RS [interface] Formerly: Radio Selector; now usually: Recommended Standard
RTU
[Modbus interface]
Remote Terminal Unit
SAS Short circuit alarm switch
PLC Programmable logic controller
ST Shunt trip
STF Shunt trip flexible
STL Shunt trip left
SWD Switching duty
T Test
T [IT systems] French: Terre (ground)
TC Test device for molded case circuit breaker or MRCD, suitable for systems
with grounded phase
TCP Transmission Control Protocol
TD Test Device
TM Thermal Magnetic
TMTU Thermal Magnetic Trip Unit
TRIP-IND TRIP INDICATOR (trip alarm switch)
TRUE RMS TRUE root-mean-square
TU Trip Unit
UAR Universal release
UL Underwriters Laboratories Inc.
UR Undervoltage release
USB Universal Serial Bus
UPS Uninterruptible power supply
UVR Undervoltage release
VDE Verein Deutscher Ingenieure (Association of German Electrical Engineers)
VDI Verein Deutscher Ingenieure (Association of German Engineers)
ZSI Zone Selective Interlocking
ZSS Zone Selective Interlocking
To Next Page
Loading...
