Commercial or technical designation of a manufacturer's product family sharing a common design and compatible characteristics.

Range of tasks and systems for which the manufacturer recommends the component.

Primary function of the device and its intended use as defined by its design and the manufacturer's documentation.

Permissible installation location of the product: indoors, outdoors, in a technical area, or as part of equipment.

Environmental conditions under which installation and operation of the product are permitted.

Permissible spatial orientation of the component during installation and operation.

Mechanical and electromagnetic construction of the current transformer.

External horizontal dimension of the product between its outermost lateral points.

External vertical dimension of the product from its lowest to its highest point.

External distance between the foremost and rearmost surfaces of the product.

Shape of the clear measuring aperture through which the primary conductor or busbar passes.

Clear internal width of the measuring aperture.

Clear internal height of the measuring aperture.

Clear internal diameter of a circular measuring aperture.

Maximum conductor diameter that can physically pass through the measuring aperture.

Maximum busbar width accepted by the measuring aperture.

Maximum busbar thickness accepted by the measuring aperture.

Number of terminal blocks included in the product's standard equipment or provided for the specific version.

Number of electrically distinguishable secondary windings provided by the transformer or transformer-based device.

Number of independent magnetic cores within the product.

Primary material from which the product is manufactured.

Grade, alloy, class, or technical designation of the product's primary material.

Primary visually perceived colour of the product's external surface.

Designation of the product's primary surface colour according to the RAL colour system.

Installation arrangement permitted by the product design, such as wall-mounted, flush-mounted, floor-mounted, or another specified mounting type.

Method used to mechanically secure the product to a support, surface, or load-bearing structure.

Conductor connection methods supported by the specified terminals or connection elements.

Tightening torque specified by the manufacturer for a screw or bolted terminal connection.

Indicates that the magnetic or sensing core can be opened for installation around an existing conductor.

Mechanical method used to open and close a split measuring core.

Indicates that electrical connection terminals are individually identified by manufacturer-applied markings.

Physical directions from which conductors or tools access the electrical connection terminals.

Minimum conductor cross-section accepted by the relevant general device terminal connection.

Maximum conductor cross-section accepted by the relevant general device terminal connection.

AC frequency assigned to the product for normal operating conditions.

Voltage with reference to which the product's insulation clearances and dielectric properties are specified.

Peak value of an impulse voltage of specified waveform that the product insulation must withstand without breakdown.

Test voltage applied to verify the dielectric strength of the product insulation.

Minimum permissible insulation resistance between the specified electrically separated parts.

Category characterizing the expected level of impulse overvoltages at the product's point of use.

Degree of pollution of the surrounding microenvironment considered when selecting insulation distances and product characteristics.

Type of electrical insulation used, considered in terms of its protective function and construction.

Rated electrical current of the primary winding or primary side under manufacturer-declared conditions.

Rated electrical current of the secondary winding or secondary side under manufacturer-declared conditions.

Manufacturer-declared transformation ratio between the relevant primary and secondary electrical quantities.

Rated secondary burden for which the declared instrument-transformer accuracy is specified.

Manufacturer-declared metering or protection accuracy classes of the instrument transformer.

Primary intended function of the instrument transformer: metering, protection or combined use.

Indicates that primary and secondary polarity or orientation is explicitly marked on the product.

Accuracy limit factor ALF of a protection current transformer.

Instrument security factor FS of a measuring current transformer.

Knee-point voltage of the current-transformer excitation characteristic where declared.

Excitation or magnetising current declared for the instrument-transformer core at the specified condition.

Manufacturer-declared DC resistance of the secondary winding under the stated reference conditions.

RMS value of short-time withstand current Icw that the product can withstand for the declared duration without unacceptable damage.

Peak current value Ipk that the product can withstand under the declared short-circuit conditions.

Continuous thermal current factor relative to the rated primary current.

Degree of enclosure protection against access to hazardous parts and ingress of solid objects and water, designated by the IP code.

Class of enclosure resistance to external mechanical impacts designated by the IK code.

Method or level of protection of the user against direct contact with hazardous live parts.

Indicates whether the design prevents finger access to hazardous live parts in the intended condition.

Classification of a material according to its ability to ignite, sustain combustion, and cease burning under a specified test.

Temperature of the heated wire used when testing the material or product against an ignition source.

Indicates whether the product material is classified as halogen-free according to the characteristics declared by the manufacturer.

Minimum ambient temperature at which normal operation of the product is permitted.

Maximum ambient temperature at which normal operation of the product is permitted.

Maximum permissible average ambient temperature over a consecutive 24-hour period.

Minimum ambient temperature permitted during storage of the product while not in operation.

Maximum ambient temperature permitted during storage of the product while not in operation.

Minimum relative air humidity permitted for the declared operating or test condition.

Maximum relative air humidity permitted for the declared operating or test condition.

Temperature at which the corresponding relative humidity value is specified or standardized.

Indicates whether the permissible humidity value applies only to non-condensing conditions.

Maximum altitude above sea level at which the product may be installed without exceeding the declared conditions.

Indicates whether the permissible product load must be reduced as installation altitude increases.

Altitude above sea level above which the permissible product load must be reduced.

Indicates whether the product's resistance to vibration has been verified under the declared conditions.

Indicates whether the product's resistance to short-duration mechanical shocks has been verified.

Indicates whether documentation is included in the product's standard supply.

Indicates whether an installation manual is included with the product.

Regions or markets for which the manufacturer declares regulatory or certification compliance of the product.

Certification, market-approval, or conformity marks applicable to the product.

Primary normative document or standard according to which the manufacturer classifies or assesses the product.

Additional normative documents and standards declared by the manufacturer as applicable to the product.

Indicates whether an official declaration of conformity is available for the product.

Indicates whether a certificate relating to the declared certification or conformity of the product is available.

Identification number of the certificate relating to the product or its certified version.

Name of the organization that issued the certificate or performed the relevant conformity assessment.

Indicates whether the CE marking is applied to the product where applicable.

Indicates whether the EAC marking is applied to the product where applicable.

Indicates whether the cULus mark is applied to the product where applicable.

Indicates whether the product has a declared CSA certification or recognition status.

Indicates whether product compliance with applicable RoHS restrictions on hazardous substances has been declared.

Indicates whether the manufacturer declares compliance of the product with applicable REACH Regulation requirements.

Indicates that the measuring function can be calibrated using a manufacturer-defined procedure.

Indicates that the product is calibrated by the manufacturer before delivery.

Indicates that a calibration certificate can be supplied for the product.

Manufacturer-recommended interval between periodic calibrations, where such an interval is specified.

Indicates that the manufacturer provides a defined procedure or test facility for verifying measurement accuracy.

Compliance with IEC 61869-1 general requirements for instrument transformers.

Compliance with the European adoption of IEC 61869-1.

Compliance with IEC 61869-2 additional requirements for current transformers.

Compliance with the European adoption of IEC 61869-2 for current transformers.

Compliance with IEC 61869-6 requirements for low-power instrument transformers where this edition is declared by the manufacturer.

Compliance with IEC 61869-10 additional requirements for low-power passive current transformers.

Mass of the product together with its individual packaging and the accessories included in it.

External horizontal dimension of the product's individual package.

External vertical dimension of the product's individual package.

External depth dimension of the product's individual package.

Design type of the product's individual or transport packaging.

Mass of the product itself, excluding transport packaging, additional accessories, and external equipment.

Country of origin of the goods declared for customs or commercial purposes.

Commodity code under the international Harmonized Commodity Description and Coding System.

Commodity code under the Combined Nomenclature of the European Union.