The level switches EXTENDED from KRIWAN are the perfect solution for applications that require precise liquid monitoring under extreme temperature conditions. Whether in freezing temperatures or in environments with heat up to 160 °C - these sensors offer maximum reliability and protection against icing.
Thanks to their robust design and extended temperature resistance, they are ideal for demanding applications in refrigeration, heating and industrial processes. With their proven technology and easy installation, the EXTENDED models are the optimal choice for challenges where standard solutions reach their limits.
Innovations and advantages of the level switches EXTENDED at a glance:
KRIWAN offers you a wide range of optical level switches with different technical specifications. In the following table you will find a small selection of our level switches EXTENDED.
Contact our experts and we will work with you to find the right product!
| Designation: | INT276 ICN | INT276 ICX | INT276 CN+ | INT276 CX+ |
| Permitted media temperature | max. +120°C (<16.000h) max. +100°C | max. +120°C (<16.000h) max. +100°C | max. +160°C | max. +160°C |
| Function | min | max | min | max |
| Start-up bridging | no | |||
| Switching delay | 3 sek. | |||
| Interlocked switch-off | no | |||
| Run detection | no | |||
| Alarm contact | Changeover | |||
| Length of connecting cable | 1m, 2m, 5m, 10m | 1m, 5m, 10m | 1m, 2m | 2m |
| Certification | no | no | UL | UL |
| Power supply | AC50/60 Hz 230V AC/DC 50/60 Hz 24V | AC50/60 Hz 230V AC/DC 50/60 Hz 24V | AC50/60 Hz 230V AC50/60 Hz 115V | AC50/60 Hz 230V AC50/60 Hz 115V |
Whether at a frosty -30 °C or a hot 160 °C
The EXTENDED sensors impress with their robustness and durability, making them the perfect choice for demanding applications in refrigeration and heating technology.
Areas of application
Wide range of applications for the level switches EXTENDED
The level switches EXTENDED from KRIWAN offer reliable monitoring of liquid levels in refrigeration systems and heat pumps that are exposed to extreme temperatures. With their high resistance to icing and temperature stability, they ensure the stable operation of low- or high-temperature systems.
INT276 ICN and INT276 ICX
Moisture from the warm ambient air always condenses at the coldest point. If this point is the refrigerant collector, it can lead to icing between the glass cone and the evaluation unit. To address this issue, a special product variant was developed, optimized for use on CO₂ refrigerant collectors and resistant to icing of the optical measurement principle.
With EXTENDED sensors, you minimize downtime and ensure the reliable operation of your refrigeration systems, even under the most demanding conditions. These level sensors provide dependable performance even at low temperatures and high humidity, thanks to their robust, ice-resistant design. These features make them ideal for refrigeration systems where icing and extreme conditions pose significant challenges.
INT276 CN+ and INT276 CX+
The Level switches EXTENDED INT®276 CN+ and INT®276 CX+ are the ideal choice for applications that require precise level monitoring at high temperatures. With a temperature resistance of up to 160 °C, they are ideal for oil management systems in oil separators, oil receivers and compressors, especially with natural refrigerants such as CO₂ or NH₃. Thanks to their robust components, EXTENDED sensors are ideally suited for operation at high temperatures and ensure maximum safety and efficiency for your systems. The EXTENDED sensors combine precision, durability and temperature resistance and ensure the smooth operation of modern heat pump systems even under demanding conditions.
Yes, the level sensors INT276 CN+ and INT276 CX+ have been specifically designed for use with natural refrigerants like CO₂ and NH₃. They provide reliable monitoring of liquid levels, even under the unique demands of these media.
INT®276 ICN and ICX:
Optimized for use with CO₂ refrigerant collectors, featuring enhanced icing resistance at low temperatures.
INT276 CN+ and CX+:
The next-generation models with UL certification, also ice-resistant, and capable of reliable operation at temperatures up to +160°C.
The EXTENDED sensors offer:
The INT276 ICN and ICX models are designed for operation at +120°C for a total runtime of up to 16,000 hours.
No, the EXTENDED sensors are not EX-certified. For use in explosive environments, KRIWAN offers the EX level sensors.
Yes, the sensors are available in various cable lengths and voltage variants. Additionally, different screw-in parts can be combined. Custom designs can be reviewed upon request.
Feel free to contact our experts - they will be happy to assist you.
Our level switch categories for every application:
The level switches BASIC are robust and offer reliable performance for standard applications. Thanks to their durability and easy installation, they are ideal for a wide range of industrial applications. Perfect for users who rely on solid technology without compromising on quality and reliability.
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The level switches ADAPT stand for maximum flexibility and easy integration. Thanks to the innovative M12 plug-in connection, cables can be attached individually and as required. This solution offers enormous advantages, especially in large systems: Maintenance work can be carried out quickly and efficiently, as the cable can remain unchanged in the wiring harness. The level switch ADAPT also makes it easy to replace the sensor without the need for an electrician. Perfect for applications where customisability and reliability count.
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The level switches EX offer maximum safety in potentially explosive environments. With their specially certified design, they fulfil all requirements for use in areas such as chemical plants, refineries or other industries with potential explosion risks. The sensors in this series guarantee maximum reliability, durability and protection - even under the most demanding conditions. The level switches EX are the ultimate solution for operators who do not want to take any risks.
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