General
Conductor diameter	0.35 to 1.4 mm
Insulation material	paper and plastic insulation
Contact tip	gold tip
Application type	testing and measuring purposes
Compatibility	PTS93i, KAPG 80 (90)
Use as bridging cord

The needle contactor NK from Rose Netzwerktechnik is designed for safe and precise contact with paper- and plastic-insulated conductors during testing and measurement tasks. It is specifically designed for use with devices such as the PTS93i or KAPG 80 (90) and enables measurements to be carried out without mechanical damage to the conductor or insulation. The fine gold tip of the contactor penetrates the insulation and establishes a reliable electrical connection to the conductor, without causing any measurable changes to the measurement values. After removal of the NK, no restoration of the conductor insulation is required, as the insulation is not permanently damaged by the fine needle.

Applications

The needle contactor NK is suitable for testing and measuring conductors with conductor diameters from 0.35 to 1.4 mm. It is particularly used in TK testing technology, where quick and secure contact with conductors is required without destroying them. Applications include diagnosing line faults, checking connections in cables, or performing resistance measurements. The device is used with conductors insulated with paper or plastic, enabling broad applicability in telecommunications and electrical engineering.

Functions and Equipment in Detail

The NK is clamped onto the conductor to be tested and then connected to the test or measuring device. The gold tip ensures a stable electrical connection that does not impair measurement accuracy. The design of the contactor ensures easy handling and secure attachment to the conductor. Contact is made without additional tools or aids, increasing work speed. The fine tip minimizes mechanical stress on the insulation, so no repair work is required on the conductor after unclamping.

Technology Explained Simply

The technology of the needle contactor is based on mechanically penetrating the insulation with a fine, gold-plated needle. This needle is dimensioned to pierce the conductor's insulation without damaging the conductor. The gold plating ensures a corrosion-resistant and conductive contact, providing high reliability even with frequent use. Contact is made without additional preparation of the conductor, reducing work time. The design allows use even in tight spaces or complex cable bundles.

Compatibility and Accessories

The needle contactor NK is specifically developed for use with test devices such as the PTS93i or KAPG 80 (90). However, it can also be connected to other measuring devices, provided the connection type is compatible. Using a standard plug coupling, two needle contactors can be connected to create a bridging cord. This function enables uninterrupted switching operations, during which the line remains functional during measurement. A plug coupling is required to establish the connection.

Mounting and Installation

Mounting the needle contactor is done by simply clamping it onto the conductor to be tested. No additional tools or aids are required. Handling is simple and does not require special training. Connection to the measuring device is made via the integrated connector of the NK. When used as a bridging cord, a second NK is connected via a plug coupling, creating a continuous line bridge. Installation is performed directly on the cable, without removing or damaging the insulation.

Operational Advantages

Using the needle contactor NK offers several operational advantages. It enables quick and secure contact without damaging the insulation, reducing work time and maintenance effort. Measurement accuracy remains unchanged, as no additional resistance or contact errors occur. The reusability of the NK is guaranteed, as no mechanical damage is caused to the conductor. Use as a bridging cord allows uninterrupted work, which is particularly beneficial in running systems. Simple handling and compatibility with common test devices increase efficiency in daily use.