ELSNER 70148 KNX CP TP KNX TP Area and Line Coupler

The ELSNER 70148 product, known as KNX CP TP, is a line and area coupler for KNX TP systems. This device is designed to ensure the connection and repetition of signals between main and secondary lines in the KNX network.

Key Features

The KNX CP TP offers several key functionalities for the integration and management of home and industrial automation systems.

Galvanic Isolation

The device has galvanic isolation between the main line and the secondary line, ensuring safe and reliable electrical separation.

Extended Telegram Support

It supports extended frames and telegrams up to 240 bytes in length APDU, making it suitable for applications such as energy measurement and visualization.

Repeat function

If there is no IACK response on the subline, the device can repeat messages up to three times. Repetition can be configured for both physical and group telegrams via ETS.

Suspension of the Telegram Filter

It is possible to suspend the telegram filter for a configurable period of time through ETS, simply by pressing a button on the front panel of the device. This makes it easier to commission and debug on the site without the need for additional ETS downloads.

Technical Specifications

Feeding

• Power supply: 21... 30 V SELV
• Current consumption: < 10 mA

Home and Assembly

• PA66 plastic house, white color RAL 9018
• Dimensions (H × W × D): 90 mm × 36 mm × 71 mm (2 modules at 18 mm)
• 35mm cap rail mounting (TH35)
• Weight: 68 g

KNX connections

• KNX connections for main line and subline, without screws, for single-core cables Ø 0.6... 0.8 mm

Environmental Conditions

• Operating temperature: -5... +45 °C
• Storage temperature: -20... +60 °C
• Ambient humidity (non-condensing): 5... 93%

Electrical Safety

• Pollution degree (IEC60664): 2
• Protection class (IEC61140): III
• Overvoltage category (IEC60664): II