Glossary
1A/1B: 1 open & 1 closed Auxiliary Contacts
3W: 3 wire
4W: 4 wire
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AA: Ambient Air
AC: Alternating Current
ACB: Air Circuit Breaker
AFC: Adjustable Frequency Controller
AIC: Amps Interrupting Capacity
AIR: Amps Interrupting Rating
AMS: Alternative Maintenance Setting
ANSI: American National Standards Institute
ATS: Automatic Transfer System
AWG: American Wire Gauge
B2B: Back To Back
BFI: Blown Fuse Indicator
BIL: Basic Insulation Level
BMFD: Blown Main Fuse Detector
BMOL: Bimetallic Overload
BOM: Bill Of Material
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BTU: British Thermal Unit
CAD: Computer Aided Design
CB: Circuit Breaker
CCT: Common Configuration Team
The Common Configuration Team is a cross-functional team that is responsible for the design, creation, and maintenance of the common processes for product configuration.
CCW: Counter Clockwise
CDS: Control Disconnect Switch
CL: Center Line
CLM: Current Limiting Module
CM: Circuit Monitor
CMH: Component Mounting Hardware
CMM: Commercial Multi-Metering
CPM: Cycles Per Minute
CPS: Cycles Per Second
CPT: Control Power Transformer
CR: Control Relay
CS: Control Switch
CSA: Canadian Standards Association
CSP: Control Station Panel
CT: Current Transformer
CTC: Current Transformer Compartment
CTU: Capacitor Trip Unit
CUL: Underwriters Laboratories of Canada
DC: Direct Current
DE: Double-Ended
DP: Double Pole
DPDT: Double Pole Double Throw
DPST: Double Pole Single Throw
EMAC: Electrical Manufactures Association Of America
EUSERC: Electric Utility Service Equipment Requirements Committee
EWD: Elementary Wiring Diagram
FA: Forced Air
FC: Front Connected
FCAN: Full Capacity Above Normal
FCBN: Full Capacity Below Normal
FLA: Full Load Amps
FLC: Full Load Current
FM: Frequency, Modulation
FMCS: Fused Molded Case Switch
FP: Freezing Point
FPM: Feet Per Minute
FPS: Feet Per Second
FS: Fusible Switch
FVNR: Full Voltage Non-Reversing
FVR: Full Voltage Reversing
GA: Gage Or Gauge
GF: Ground Fault
GFCI: Ground Fault Circuit Interrupter
GFM: Ground Fault Module
GFP: Ground Fault Protection System
GFR: Ground Fault Relay
GMD: Group Mounted Device
GP: General Purpose
HACR: Heating, Air Conditioning, And Refrigeration
HD: High Density
HF: High Frequency
HOA: Hand-Off-Auto
HP: Horsepower
HR: Hand Reset
HV: High Voltage
HVAC: Heating,Ventilation, and Air Conditioning
Hz: Hertz
I/O: Input / Output
ICCB: Insulated Case Circuit Breaker
ID: Inside Diameter
IEC: International Electrotechnical Commission
IEEE: Institute Of Electrical And Electronic Engineers
IER: Integrated Equipment Rating (SCCR Is Correct Term)
IMD: Individually Mounted Device
IPCPT: Internally Protected Control Power Transformer
IPM: Interruptions Per Minute
IR: Instantaneous Relay
ISO: International Standard Organization
ITR: Inverse Time Relay
JB: Junction Box
kA: kilo Amps
kCMIL: Thousand Circular Mils
Wire Size
KI: Key Interlock
KO: Knockout
kV: kilo Volts
kVA: Kilovolt-Ampere
kVAH: Kilovolt-Ampere Hour
kVAR: Kilovolt-Ampere Reactive
L2R: Left to Right
LCD: Liquid Crystal Display
LED: Light Emitting Diode
LF: Low Frequency
LH: Left Hand
LO: Lock Out
LRC: Locked Rotor Current
LS: Low Speed
LV: Low Voltage
LVR: Low Voltage Relay
M-G: Main Generator
M-M: Main Main
M-T-M: Main Tie Main
MAOL: Melting Alloy Overload
MC: Momentary Contact
MCB: Main Circuit Breaker
MCC: Motor Control Center
MCCB: Molded Case Circuit Breaker
MDGF: Modified Differential Ground Fault
MLO: Main Lug Only
MV: Medium Voltage
MVA: Million Volt Amps
N/A: Not Applicable
N/R: Not Required
NC: Normally Closed
NEC: National Electric Code
NEMA: National Electrical Manufacurer's Association
PCD: Product Configurator Development
PPO: Preferred Product Offer
The Preferred Product Offer notations have been established to aid in feature selections (when allowed by specification) giving guidance for items preferred to be supplied by Schneider Electric.
PW: Part Winding
Q2C: Quote To Cash
QED: Quality Engineered Development
QMB : Quick Make Break
QMQB : Quick Make Quick Break
R2L: Right to Left
RAM: Random Access Memory
RC: Remote Control
RIM: Restraint Interface Module
For Electronic Circuit Breakers
RMS: Root Mean Square
ROM: Random Operating Memory
RP: Rating Plug
For Electronic Circuit Breakers
RPM: Revolutions Per Minute
RPS: Revolutions Per Second
RTT: Ring Tongue Terminal
RV: Reduced Voltage
RVA: Reactive Volt Ampere
RVAT: Reduced Voltage Autotransformer
RVNR: Reduced Voltage Non Reversing
RVR: Reduced Voltage Reversing
RVSS: Reduced Voltage Soft Start
SCCR: Short Circuit Current Rating
SE: Service Entrance
SF: Space Factor
SFL: Sub Feed Lug
SNA: Schneider North America
SP: Special Pricing
SPD: Surge Protection Device
SPDT: Single Pole Double Throw
SPST: Single Pole Single Throw
SQD: Square D Company
SSOR: Solid State Overload Relay
SSTL: Stainless Steel
ST: Shunt Trip
STSW: Static Transfer Switch
SUSE: Suitable For Use As Service Equipment
TAG: Technical Assistance Group
TC: Trip Coil
TFL: Through Feed Lugs
TM: Thermal Magnetic
TRE: Transparent Ready Equipment
TU: Trip Unit
TVSS: Transient Voltage Surge Suppressor(see SPD)
UCT: Utility Compartment
UGPS: Underground Pull Section
UL: Underwriters Laboratory
ULSE: Underwriters Laboratory Service Equipment
UR: UL Listing Type - Component Recognized
USA: United States
UVR: Under Voltage Relay
UVT: Under Voltage Trip
VA: Volt-ampere
VR: Voltage Relay
VSD: Variable Speed Drive
VT: Voltage Transformer
WHM: Watt-hour Meter