Cross Reference of European Electrical Symbols{7566} Caterpillar


Cross Reference of European Electrical Symbols{7566}

Usage:

SR4B 1BN


Electric Power Generation: All

Introduction

This special instruction is a cross-reference for symbols that are used on European electrical schematics and US electrical schematics.

Symbols

Ammeter


European


US

Arc Suppressor


European - AC


US - AC


European - DC


US - DC


European - AC and DC


US - AC and DC

Battery


European


US

Bell


European


US

Binistor


European


US

Bridge Rectifier


European


US

Buzzer


European


US

Capacitor


European


US


European - Adjustable (Variable)


US - Adjustable (Variable)


European - Polarized Electrolytic


US - Polarized Electrolytic

Circuit Breaker


European

OR


European


US

OR


US

OR


US

Circuit Interrupter


European


US

Cold Cathode Volt Regulator


European


US

Conductors


European - Not Connected


US - Not Connected


European - Connected


US - Connected

Core of Square Loop Material


European


US

Current Source


European - AC


US - AC


European - DC


US - DC

Differential Syncro


European


US

Diode


European - Bidirectional Breakdown Diode


US - Bidirectional Breakdown Diode

OR


US - Bidirectional Breakdown Diode


European - Electro-Vacuum Diode


US - Electro-Vacuum Diode


European - Light Emitting Diode (LED)


US - Light Emitting Diode (LED)


European - Rectifier Diode


US - Rectifier Diode


European - Tunnel Diode


US - Tunnel Diode


European - Varicap Diode


US - Varicap Diode


European - Zener Diode


US - Zener Diode

Disconnect


European


US

Flow Switch


European - Closed


US - Closed


European - Open


US - Open

Fuses


European


US

OR


US

Ground


European

OR


European


US


European - Chassis


US - Chassis

Heating Element


European

OR


European

OR


European


US

OR


US

Horn, Siren, Etc.


European


US

Ignitron


European


US

Limit Switch


European - Normally Closed


US - Normally Closed


European - Normally Open


US - Normally Open


European - Held Closed


US - Held Closed


European - Held Open


US - Held Open


European - Maintained Position


US - Maintained Position


European - Actuated Neutral Position


US - Actuated Neutral Position


European - Neutral Position


US - Neutral Position

Meter Shunt


European


US

Motor


European - DC


US - DC


European - Three-Phase


US - Three-Phase

Motor Field (DC)


European


US

Neon Light


European - AC


US - AC


European - AC with Internal Resistance


US - AC with Internal Resistance


European - DC


US - DC

Non-Plug


European


US

Pentode


European


US

Photodiode


European


US

Photosensitve Cells


European - Asymmetrical Cells


US - Asymmetrical Cells


European - Symmetrical Cells


US - Symmetrical Cells

Phototube


European


US

Pilot Light


European


US


European - Push-to-Test


US - Push-to-Test

Plug and Receptacle (Connector)


European


US

Plugging


European


US


European


US

Plugging With Lockout Coil


European


US

Potentiometer


European

OR


European


US

OR


US

Pressure Switch


European


US - Closes on rising pressure

OR


US - Opens on rising pressure

OR


US

OR


US

Reactor


European - Air Core

OR


European - Air Core


US - Air Core


European - Iron Core


US - Iron Core


European - Adjustable Iron Core

OR


European - Adjustable Iron Core


US - Adjustable Iron Core


European - Saturable Core

OR


European - Saturable Core


US - Saturable Core

OR


US - Saturable Core


European - Magnetic Amplifier Winding


US - Magnetic Amplifier Winding

Relay


European - Normally Closed


US - Normally Closed

OR


US


European - Normally Open


US - Normally Open

OR


US

Relays, Timers, ETC.


European


US

Resistor


European


US


European - Symmetrical Nonlinear Resistor


US - Symmetrical Nonlinear Resistor


European - Tapped Resistor


US - Tapped Resistor

Rheostat


European

OR


European


US

OR


US

Rotary Selector


European - Bridging Contact

OR


European - Bridging Contact


US - Bridging Contact

OR


US - Bridging Contact


European - Non-Bridging Contact

OR


European - Non-Bridging Contact


US - Non-Bridging Contact

OR


US - Non-Bridging Contact

Shielded Cable


European


US

Silicon Controlled Rectifier


European


US

Solenoid


European


US

OR


US


European - Two-Position Hydraulic Solenoid


US - Two-Position Hydraulic Solenoid


European - Two Position Lubrication Solenoid


US - Two-Position Lubrication Solenoid

Switch


European - Cable Operated Switch


US - Cable Operated Switch


European - Emergency Switch


US - Emergency Switch


European - Fluid Level Switch (Closed)


US - Fluid Level Switch (Closed)


European - Fluid Level Switch (Open)


US - Fluid Level Switch (Open)


European - Foot Switch (Closed)


US - Foot Switch (Closed)


European - Foot Switch (Open)


US - Foot Switch (Open)


European - Proximity Switch (Closed)


US - Proximity Switch (Closed)


European - Proximity Switch (Open)


US - Proximity Switch (Open)


European - Toggle Switch


US - Toggle Switch


European - Two Position Selector Switch


US - Two Position Selector Switch


European - Double Circuit Pushbutton


US - Double Circuit Pushbutton


European - Maintained Contact Pushbutton


US - Maintained Contact Pushbutton


European - Mushroom Head Double Circuit Pushbutton


US - Mushroom Head Double Circuit Pushbutton


European - Single Circuit Pushbutton (Normally Closed)


US - Single Circuit Pushbutton (Normally Closed)


European - Single Circuit Pushbutton (Normally Open)


US - Single Circuit Pushbutton (Normally Open)

Syncro


European


US

Tachometer Generator


European


US

Temperature Switch


European - Closed


US - Closed


European - Open


US - Open

OR


US

OR


US

Terminal Block


European


US

Tetrode


European


US

Tetrode Transistor


European


US

Thermal Overload


European


US

Thermal Overload Element


European


US

Thermistor


European


US

Thermocouple


European

OR


European - Normally Open

OR


European - Normally Closed


US

OR


US

Three-Position Pneumatic Solenoid


European


US

Three-Position Selector Switch


European


US

Thyratron


European


US

Thyristor (Schottky Diode)


European


US

Time Delay After Coil


European - Normally Closed (De-Energized)


US - Normally Closed (De-Energized)


European - Normally Closed (Energized)


US - Normally Closed (Energized)


European - Normally Open (De-Energized)


US - Normally Open (De-Energized)


European - Normally Open (Energized)


US - Normally Open (Energized)

Transformer


European - Auto


US - Auto


European - Variable Auto


US - Variable Auto


European - Air Core


US - Air Core


European - Magnetic Core


US - Magnetic Core


European - Shielded Magnetic Core


US - Shielded Magnetic Core


European - Control Circuit


US - Control Circuit


European - Linear Variable Differential


US - Linear Variable Differential


European - Saturable


US - Saturable

Transistor


European - Field Effect Transistor (n-channel)


US - Field Effect Transistor (n-channel)


European - Bipolar Junction Transistor (NPN)


US - Bipolar Junction Transistor (NPN)


European - Bipolar Junction Transistor (PNP)


US - Bipolar Junction Transistor (PNP)


European - Unijunction


US - Unijunction

Trigistor


European


US

Trinistor


European


US

Triode


European


US

Vacuum and Pressure Switch


European - Closed


US - Closed


European - Open


US - Open

Variable Inductor


European

OR


European


US

OR


US

Varistor


European


US

Voltmeter


European


US
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