DIN 6779

Area	Product labeling
title	Labeling system for technical products
Brief description:	several parts, see article
Latest edition	div.
ISO	ISO / TS 16952

The DIN standard DIN 6779 is a series of standards with the title labeling system for technical products and technical product documentation . It consists of several parts with department-specific specifications.

DIN 6779-1 basics

Part 1 of the standard describes the fundamentals and rules for the labeling system and for the structure and content of labeling blocks for function- and location-related labeling of technical products. The last edition, published in 1995, was withdrawn in 2007 and replaced by the ISO standard ISO / TS 16952 .

DIN 6779-2 code letters; Main classes and subclasses for the purpose or task of objects

Part 2 defines additional sub-classes for the purpose and task of objects in addition to the main classes defined in the European standard EN 61346-2 . DIN 6779-2 has been withdrawn. Its content has been included in EN 81346-2 .

Table of main classes (A1) and sub-classes (A2)

A1 A2	Purpose or task of the object	Examples of products
A.	Two or more purposes or tasks
AA ... AE	Free to subdivide objects, tasks related to electrical energy
AF ... AK	Free to subdivide objects, tasks related to information or signals
AL ... AY	Free to subdivide objects, tasks related to mechanics, structural engineering ... (non-electrical engineering)
AZ	Combined tasks
B.	Conversion of an input variable (physical property, state or event) into a signal intended for further processing
BA	(reserved for later standardization)
BB	Conversion of input variables for protection purposes	Protection relay Overload relay (thermal) Buchholz relay
BC	(reserved for later standardization)
BD	density
BE	Electric size	Power converter Measuring relay Voltage converter Transducer Measuring resistor (shunt)
BF	Flow, throughput	Orifice plate Differential pressure transmitter Flow meter Gas meter water meter
BG	Distance, length, position, stretch, amplitude	(Radar device) motion detector Position switch proximity switch Proximity sensor Proximity sensor
bra	(reserved for later standardization)
BJ	power
BK	time	Clock Timepiece
BL	Height indication, stand	echo sounder (Radar device) Sight glass
BM	Humidity	Moisture meter
BN	Freely available
BP	Pressure, vacuum	Pressure sensor Pressure sensor Pressure gauge
BQ	Substance property, quality size , analysis (except D, M, V), pH value, SO ₂ content
BR	Radiation quantities, neutron flux measurement	Photocell Fire guard Smoke sensor
BS	Speed, RPM, frequency, vibration, oscillation	Vibration sensor Speedometer Tachometer Tachometer generator
BT	temperature	Temperature sensor Temperature sensor thermometer
BU	Compound quantities, multiple variables
BV	viscosity
BW	Weight, mass
BX	Other sizes	Video camera microphone
BY	(reserved for later standardization)
BZ	Number of events, amount	Switching cycles Number of objects
C.	Storage of energy, information or material
CA	Save, capacitive	capacitor
CB	Storage, inductive	Superconductor Kitchen sink
CC	Save, chemically	battery
CF	Saving information	R.A.M. EPRO CD-ROM Event memory hard disk Voltage recorder
CL	Storage, collection and storage of substances (stationary, open)	Pits pool bunker cistern
CM	Storage, collection and storage of substances (stationary, closed)	container tank boiler silo gasometer Pressure accumulator Relaxer
CN	Storage, collection and storage of substances (mobile)	Container Transport container gas bottle barrel
CP	Storage of thermal energy (heating and cooling energy), (directly)	Ice storage Hybrid storage Underground storage Hot water tank Steam storage
CQ	Storage of mechanical energy	flywheel
CZ	Combined tasks
E.	Provision of radiation or thermal energy
EA	Providing electromagnetic radiation for lighting purposes by means of electrical energy	Lightbulb Fluorescent tube UV emitter
EB	Provision of thermal energy by converting electrical energy	Heating wire, rod electric heating electric boiler Electric boiler Electric furnace Infrared heater
EC	Provision of cooling energy by converting electrical energy	Cooling unit Freezer unit Refrigerator, chest Compression refrigeration machine Turbo chiller
EF	Providing other electromagnetic radiation
Tbsp	Providing electromagnetic radiation for lighting purposes by burning fossil fuels	Gas light Gas lamp
EM	Providing thermal energy by converting chemical energy	boiler burner oven Combustion grate
EN	Provision of cooling energy by converting chemical energy	fridge Chiller
EP	Provision of thermal energy through energy exchange	Heat exchanger capacitor Evaporator Steam generator Waste heat boiler radiator radiator
EQ	Provision of cooling energy through energy exchange	fridge freezer Chiller
HE	Providing heat by converting mechanical energy
IT	Providing cold by converting mechanical energy	mechanical refrigerator
ET	Provision of thermal energy by means of nuclear fission
EU	Provision of particle radiation	Neutron generator
EZ	Combined tasks
F.	Direct (automatic) protection of an energy or signal flow, of persons or facilities from dangerous or undesired states, including systems and equipment for protective purposes
FA ... FE	Free to subdivide objects, tasks related to electrical energy	Fuse
FG	Free to subdivide objects, tasks related to information and signals
FL	Protection of mechanical and technical building objects against dangerous pressure conditions	Bursting discs Safety fitting (also automatically directly loaded aeration and ventilation valve) Condensate Vacuum breaker
FM	Protection of mechanical and technical building objects against dangerous fire effects	Fire protection equipment (recognize danger and initiate protective measures) Fire dampers Fire door Locks
FN	Protection of mechanical and technical building objects against dangerous operating conditions or damage	Protective shield Protective device Ram protection Protective sleeve for thermocouple Safety coupling
FM	Protecting the environment from emissions (e.g. radiation, chemical emissions, noise)	Reactor protection devices
FM	Protecting people / animals	railing Barrier Cabinets fence Contact protection Privacy screen Glare protection Escape door, window Airbag Seat belt
FR	Protection of mechanical and technical building objects against wear (e.g. corrosion)	Protective anode (cathodic)
FS	Protect against environmental influences (e.g. weather, geophysical effects)	Weather protection Avalanche protection geophysical protection
FZ	Combined tasks
G	Initiating an energy or material flow; Generation of signals that are used as information carriers or reference sources
GA	Initiation of an electrical energy flow through the use of mechanical energy	generator dynamo also motor generator
GB	Initiating a flow of electrical energy through chemical conversion	Fuel cell
GC	Initiation of an electrical energy flow using light	Solar cell
GF	Generation of signals as information carriers	Signal generator Signal transmitter
GL	Initiate a flow (conveying) of solids (steady)	Belt conveyor Chain conveyor Allocator
GM	Initiation of a flow (conveying) of solids (discontinuous)	crane Elevator Hoist manipulator Lifting device
GN	Initiate a flow (conveying) of solid substances (mobile)	Forklift Mobile crane truck train
GP	Initiation of a flow (conveying) of liquid and flowable substances (steady)	pump Screw conveyor
GQ	Initiation of a flow (conveying) and compression of gaseous substances (continuous)	Blower (fan, fan) compressor Vacuum pump Mammal
GR	Initiation of a flow (conveying) and compression of gaseous substances (mobile)	Tank truck
GS	Initiation of a flow (conveying) of liquid and gaseous substances (driven by a propellant medium)	Ejector Injector Spotlights
GZ	Combined tasks
H	Producing a new type of material or production
HL	Separation of mixtures of substances by classifying	Sieve Rake rust
HL	Separation of mixtures of substances by classifying	Sieve
HM	Separation of mixtures of substances by centrifugal force	Cyclone device centrifuge
HN	Separation of mixtures of substances by gravity	Sedimentation tank Thickening
HP	Separation of mixtures of substances using thermal processes	Distillation column Extraction device Evaporation Drying (Muntryer)
HQ	Separation of mixtures of substances by filtering	Liquid filter Gas filter
MR	Separation of mixtures of substances by electrostatic or magnetic forces	Magnetic separator Electrostatic precipitator
HS	Separation of mixtures of substances using physical processes	Absorption laundry Activated carbon adsorber Ion exchanger Wet dust extractor
HT	Generating new gaseous substances	Carburetor
HU	Crushing to create a new form of solid matter	Mill Crusher
HV	Coarser to create a new form of solid material	Briquetting machine Pelletizer Sintering device Tableting
HW	Mixing to create new, solid, liquid, flowable and gaseous substances	mixer Stirred tank Kneader Static mixer Emulsifier Agitator (Steam) humidifier
HX	Creation of new substances through chemical reaction	reactor Reaction furnace
HY	Generation of new substances through biological reaction	Fermenter Composters
HZ	Combined tasks
K	Processing (input, processing and output) of signals or information (with the exception of objects for protection purposes, see code letter F)
Theatrical Version	Processing of electrical and electronic signals	relay transistor Binary elements Delay devices Regulator Input / output modules receiver Channel Optocoupler
KG	Processing of optical and acoustic signals	mirror Regulator Testing device
KH	Processing of fluid power and pneumatic signals	Valve block Pilot valve Regulator (valve position regulator)
KJ	Processing of mechanical signals	Linkage Regulator
KK	Processing of different information carriers at input and output (e.g. electrical - pneumatic)	Electro-hydraulic converter Regulator electrical pilot valve
concentration camp	Combined tasks
M.	Provision of mechanical energy (mechanical rotary or linear movement) for drive purposes
MA	Electric motor drive	Electric motor Linear motor
MA	Electromagnetic driving	Magnetic drive
ML	Mechanical driving	Weight Spring force Actuator (mechanical) Spring-loaded drive Friction drive
MM	Drive fluidly and pneumatically	Actuator Servomotor (fluid drive, fluid motor) Fluid cylinder Hydraulic cylinder
MN	Propulsion by steam flow	Steam turbine
MP	Propulsion by gas flow	Gas turbine
MQ	Propulsion by wind power	Wind turbine
MR	Propulsion by liquid flow	Water turbine
MS	Powering by chemical conversion	Internal combustion engine
MT	Propulsion and control of ships by converting engine power	Propeller device Blasting machine (thruster) Paddle wheel system
MZ	Combined tasks
P	Presentation of information
PF	Presentation of information (stay)	printer Clerk plotter
PG	Presentation of information (not staying)	Detector monitor Signal lamp
PZ	Combined tasks
Q	Controlled switching or variation of an energy, signal or material flow
QA	Switching and varying electrical energy circuits	Circuit breaker Contactor Thyristor Engine starter
QB	Separation of electrical energy circuits	Disconnector Switch disconnector
QC	Grounding of electrical energy circuits	Earth electrode
QD	Bridging electrical energy circuits	Bypass switch
QL	Brakes in mechanical power transmission devices	brake
QM	Limiting flow in closed enclosures for changeable flows of gaseous, liquid and flowable substances	Shut-off valve (also drain valve) Blanking disc Blind disk flap
QN	Setting and regulating flow in closed enclosures for variable flows of gaseous, liquid and flowable substances	Control valve Gas control line Control flap
QP	Limiting flow in open containment for liquids	floodgate Weirs Dam plate
QQ	Opening, closing of inlets or accesses (people, material, light, air) to delimited places	door goal window cover Turnstile Cabinets lock
QZ	Combined tasks
R.	Limiting or stabilizing the movement or flow of energy, information or material
RA	Limiting the flow of electrical energy	resistance throttle diode
RF	Stabilizing signals	Low pass Equalizer filter
RL	Prevention of unauthorized operation and / or movements (mechanical)	Blocking device Locking Notching lock
RM	Preventing the backflow of gaseous, liquid and flowable substances	Check valves
RN	Limiting the flow of liquid and gaseous substances	Venturi nozzle Throttle disc
RP	Shielding and insulating against noise	Soundproofing silencer
RQ	Shielding and insulating from heat or cold	Thermal insulation blind insulation Sheathing Disguise lining Brick lining
RR	Shielding and dampening mechanical influences	Rash guard Compensator lining Vibration damper
RS	Shielding and insulating against chemical effects	lining Explosion protection Gas penetration protection Splash guard
RT	Shielding and insulating light	louvre Store Light shield
RU	Shielding and stabilizing movement in places / in the field	fence
RZ	Combined tasks
S.	Conversion of a manual operation into a signal intended for further processing
SF	Conversion of manual actuation into an electrical signal	counter Light pen keyboard Control switch Acknowledgment switch Push button switch Selector switch Setpoint adjuster
SG	Conversion of manual actuation into electromagnetic, optical and acoustic signals	Wireless mouse
SH	Conversion of manual actuation into mechanical signals	Handwheel Selector switch
SJ	Conversion of manual actuation into fluid or pneumatic signals
SZ	Combined tasks
T	Conversion of energy while retaining the type of energy, conversion of an existing signal while retaining the information content, changing the shape or shape of a material
TA	Converting electrical energy while maintaining the type and form of energy	transformer DC / DC converter Frequency converter
TB	Converting electrical energy while maintaining the type of energy and changing the form of energy	Rectifier Inverter AC / DC converter
TF	Conversion of signals (retention of the information content)	amplifier Isolating converter U / I converter eö. Transmitter Pulse amplifier antenna
TL	Converting speed, torque, force	Speed converter Torque converter Variable speed clutch with the main task of changing the speed Manual and automatic transmission Pressure booster
TM	Deforming, cutting	Machine tool scissors saw
TN	Treatment and processing, non-cutting (cold)	Balancing machine Slide grinder
TP	Deforming, non-cutting (cold)	Deep-drawing device Cold rolling device Cold drawing device
TQ	Deforming, non-cutting (warm)	Pouring device Forging facility Extrusion device Hot rolling device Hot drawing device
TR	Converting radiant energy while maintaining the form of energy	Magnifying glass Parabolic mirror
TZ	Combined tasks
U	Holding objects in a defined position
UA	Holding and carrying electrical energy equipment	support framework
UB	Holding and carrying electrical power cables and lines	portal mast insulator Cable ladder Cable tray Cabel Canal Cable ladder Supporters
UC	Enclosing electrical energy devices	casing Encapsulation
UF	Hold; Wear; Enclosure of control and communication technology objects	Transmitter frame Subrack Circuit board
Basement	Holding and carrying control and communication cables and lines (only to be used if separate from UB)	Cable ladder Cabel Canal
UH	Enclosing control systems	closet
UL	Holding and carrying mechanical objects	Machine foundation
AROUND	Holding and carrying building technology objects	Building foundation structural statics elements (lintel, beam, upper beam, column) Manhole Channel (not cable channel)
U.N.	Holding and carrying pipeline objects	Pipe bridge Bracket for pipes
UP	Holding and guiding waves and runners	Roller bearings ball-bearing bearings
UQ	Holding and guiding objects for production and assembly	Jig Centering device
UR	Fixing and anchoring of mechanical engineering objects	console Mounting plate, frame Anchor plate carrier
UZ	Combined tasks
V	Processing (treatment) of materials or products (including pre- and post-treatment)
VL	Filling of substances	Bag filling device Barrel filling device Tanker filling device
VM	Packing products	Wrapping machine Palletizer Packing machine
VN	Treatment of surfaces	Painting machine Grinding machine Polishing machine
VP	Treatment of substances or products using thermal energy	Annealing furnace Blast furnace Melting furnace
VQ	Cleaning of fabrics, products or facilities	vacuum cleaner Washing machine Building cleaning facility
VZ	Combined tasks
W.	Conducting or guiding energy, signals, material or products from one place to another
WA	Distribution of energy ≥ 1 kV	Busbar ≥ 1 kV
WB	Transport of electrical energy ≥ 1 kV	Cable, conductor ≥ 1 kV Implementation ≥ 1 kV
WC	Distribution of energy <1 kV	Busbar <1 kV
WD	Transport of electrical energy <1 kV	Cable, conductor <1 kV Implementation <1 kV
WE	Conducting earth potential or reference potential
WF	Distribution of electrical or electronic signals	Data bus
Flat share	Transport of electrical or electronic signals	Control cable Measuring cable Data line
WH	Transporting and guiding optical signals	Fiber optic cable optical fiber
WL	Transporting substances and products (not powered)	Inclined plane Roller table ladder
WM	Conducting and guiding streams of liquid, flowable and gaseous substances (open enclosure)	channel Gutter
WN	Conducting and guiding streams of liquid, flowable and gaseous substances (closed, flexible enclosure)	tube
WP	Conducting and guiding streams of liquid, flowable and gaseous substances (closed, rigid enclosure)	Pipeline Air duct stack
WQ	Transfer of mechanical energy	wave runner V-belt Chain Transmission linkage
WR	Guiding and guiding for track-bound means of transport	Rail device Switch device
WS	Guiding and guiding people (walking facilities)	stage stairway catwalk
WR	Management and guidance of mobile means of transport (transport routes)	path Street Shipping route Railways
WZ	Combined tasks
X	Connect objects
XB	Connect ≥ 1 kV	Clamp Cable termination sleeve
XD	Connect <1 kV	Clamp Cable termination sleeve socket
XE	Connection of earth potential or reference potential	Grounding clamp Shield connection terminal
XG	Connecting (electrically) signals	Signal distributor Connectors Connecting element
XH	Connection (optical) of signals	optical connection
XL	Connecting rigid enclosures for flows of gaseous, liquid and flowable substances	Flanges Fittings Couplings
XM	Connecting flexible enclosures for flows of gaseous, liquid and flowable substances	Hose connection Hose coupling
XN	Connecting objects to transmit mechanical energy (rigid)	Coupling, rigid
XP	Connection of objects for the transmission of mechanical energy (switchable / variable)	Clutch Variable speed clutch
XQ	Connecting objects (inseparable)	Welded joint Solder connection Adhesive connection
XQ	Connect objects (detachable)	hook eyelet
XZ	Combined tasks

DIN 6779-10 power plants

Part 10 defines the code letters for power plants. They serve as the basis of the RDS-PP , which is the successor system to the KKS ( power plant identification system ). The current edition of this standard part has the edition date April 2007. DIN 6779-10 was replaced by ISO / TS 16952-10 in January 2010.

DIN 6779-11 ships and marine technology

Code letters for ships and marine technology are specified in this part of the standard. The currently valid edition of this standard part dates from August 1998.

DIN 6779-12 Structures and technical building equipment

In this part of the standard, code letters for structures and technical building equipment are specified. The currently valid edition of this standard part dates from April 2011.

DIN 6779-13 chemical plants

This part of the standard describes the structure and labeling of technical objects and their documentation for chemical plants. It is based on EN 61346 and replaces DIN 28004-4: 1977-05 in the current June 2003 edition.