For over 50 years, KRIWAN has been a leading developer and manufacturer of electronic protection devices, sensors and condition monitoring systems. Our mission: to make systems safer, more efficient and connected — worldwide. With headquarters in Germany and subsidiaries in the USA, Brazil, Canada, France, Spain, Italy and China we deliver reliable products for:
Climate & refrigeration technology / HVAC-R
Water & wastewater industry
Renewable energies (wind, photovoltaics etc.)
Building technology & facility management
Cranes & conveying systems, ropeways
Electric motors & rotating machines
Explosive atmosphere (ATEX / Ex approvals)
KRIWAN as system supplier — everything from one source
KRIWAN is more than a component manufacturer: we see ourselves as a system supplier for the entire plant. Our broad product portfolio includes protection and monitoring solutions, sensors, electronics and intelligent diagnostic systems — perfectly coordinated.
That means for our customers: everything from one source. From motor protection to temperature sensors and level sensors to pump protection devices, communication modules and connectivity solutions — we deliver complete system solutions that work optimally together. This not only simplifies integration into your systems, but also increases efficiency, reliability and future-proofing.
We offer a wide range of protection, monitoring and sensor systems, tailored to the specific requirements of your industry:
HVAC/R, electric motors, pumps, renewable energies
Motor protection and trip devices for electrically driven machines – protection from overheating, phase failure, overload etc.
Pump protection, HVAC/R, motors, cranes
Special protective devices for pumps – monitoring temperature, current consumption, fill level and load condition. Prevents dry running, blockages and overload, with extended diagnostics and communication capability.
HVAC/R, refrigerant receivers, oil separators, heat pumps
Optical level sensors and screw-in parts – monitoring of oil and refrigerant levels, modular, also suitable for high media temperatures (e.g. up to 160 °C).
Ropeways, cranes, building technology, renewable energies
Anemometers, wind direction sensors – reliable even under extreme environmental conditions.
HVAC/R, electric motors, generators, compressors
PTC / Pt100 / Pt1000 / NTC / winding and screw-in sensors – exact temperature monitoring, fast response times, robust against environmental influences.
HVAC/R, CO₂ compound systems, compressors
Automatic oil level regulation including diagnostic functions and evaluation. Variants for high pressures and extreme applications.
Compressors, oil supply, pump technology, refrigeration systems
Sensors for monitoring pressure differences, often with screw-in parts; protection against too low oil or pump pressure.
Remote monitoring, predictive maintenance, digitalization
USB / Bluetooth gateways, Modbus gateways, evaluation electronics, accessories – enable networking, diagnostics & parameterisation via app or higher-level control systems.
Chemicals, oil / gas, mining, explosive atmospheres
Protection and diagnostic systems, sensors and relays with approvals for explosive environments. (Intensively tested, robust design).
In the HVAC & refrigeration sector, KRIWAN is at home — here lies our deepest expertise, greatest product variety and most innovative solutions. For this industry segment we offer protection and monitoring solutions for:
Career, HVAC/R, Products
KRIWAN sets new standards for sensors and VSDs for CO₂ and propane. Discover how smart technology solves challenges with natural refrigerants.
HVAC/R, Products
You've been wondering: What is Delta p? – Here's a simple and clear explanation!
Products, HVAC/R
Discover the next generation of refrigeration technology: With the innovative M12 plug-in connection, our level sensors offer maximum flexibility and ease of maintenance. Find out how this advanced technology increases efficiency and minimises downtimes - ideal for demanding applications in refrigeration and air conditioning technology.
Products, HVAC/R
The KRIWAN INT278 CAN EX is the ideal solution for precise liquid level monitoring in hazardous areas. With ATEX certification, contactless infrared technology, and a modular design, it ensures maximum safety, easy maintenance, and reliable performance – even under extreme temperatures and pressures.
Products, HVAC/R
Discover the KRIWAN ADAPT level monitor with 5-pin connector (M12) for large refrigeration systems. High temperature resistance up to 160°C, easy to maintain and compatible with new refrigerants - for maximum operational reliability and efficiency.
Career, HVAC/R, Products
KRIWAN's optical level monitor provides reliable liquid level measurement in industrial applications. Their two-part design allows for quick replacement of the evaluation unit without interrupting operation, ensuring precise results under demanding conditions. Ideal for modern refrigeration and industrial systems.
Protection and monitoring solutions for refrigeration and air-conditioning technology
The global demand for cooling is growing – driven by climate change, population growth, and increasing requirements for energy efficiency. Common causes of failure in refrigeration systems include motor overheating, insufficient lubrication, or voltage fluctuations. KRIWAN develops intelligent protection and monitoring systems that prevent failures, extend the service life of the equipment, and ensure safe and efficient operation.
The safe and efficient conveyance of water and wastewater is indispensable for municipalities, utilities and industrial plants. Pumps are the central components – but at the same time particularly vulnerable to damage from dry running, blockages or overload. To master these challenges, KRIWAN offers protection and monitoring solutions that secure reliable operation and increase the efficiency of the systems:
Products, Water and wastewater industry
Discover KRIWAN’s EXTENDED level sensors, designed for reliable performance in extreme temperature conditions from -30°C to 160°C. Engineered for refrigeration and heating systems, these robust sensors offer precise liquid monitoring, high icing resistance, and seamless integration for demanding applications.
Products, Water and wastewater industry
The KRIWAN BASIC level sensors provide a reliable and cost-effective solution for continuous oil level monitoring in compressors. With precise measurement and early warning capabilities, these sensors help prevent damage caused by low or high oil levels, ensuring optimal performance and extending the lifespan of compressor systems.
Products, Water and wastewater industry
KRIWAN Industrie-Elektronik impressed at Chillventa 2024 with new products, including the Level Sensor with M12 connector, and showcased the X-Sensor test bench from Karlsruhe University of Applied Sciences. Discover the highlights of this trade show appearance!
Products, Water and wastewater industry
In terms of environmental friendliness, long-term cost savings and adaptation to future energy policies, the heat pump is becoming increasingly attractive. But what do you do if such a major purchase, especially for industrial purposes, breaks down? For these challenges, KRIWAN has the right solutions to protect a heat pump and thus ensure long-term efficiency and reliability. The system is stopped before it becomes expensive.
Products, Water and wastewater industry
CO2 refrigeration systems are widely used in modern refrigeration technology due to their environmental friendliness and efficiency. Despite their advantages, such as the low global warming potential (GWP) of CO2, these systems place particular demands on oil management, especially due to the high operating pressures and the special properties of CO2 as a refrigerant. This also places high demands on the technology.
Products, News, Water and wastewater industry
Our KRIWAN pump protection devices are now available in the EPLAN Data Portal! EPLAN, a leading company in the field of software solutions for electrical engineering and automation, enables direct access to product data for engineers and planners with its cloud-based Data Portal.
A central component of our product strategy is networking, condition monitoring and smart diagnostics.
Gateways (Bluetooth, USB, Modbus etc.), evaluation electronics – enable access to data on-site and integration into higher-level control systems.
Mobile application for fault and condition diagnosis, parameterisation of devices, reading of measured values, PDF report, blink-code decoding etc.
Real-time monitoring (temperature, oil level, pressure, leakage, phase failure etc.), early fault detection, preventive maintenance (predictive maintenance), higher system safety and service life.
KRIWAN has stood for quality, innovation and reliability for decades. Our products are used worldwide and enjoy the trust of OEMs, system builders and operators in a wide variety of industries.
Your advantages with KRIWAN:
With subsidiaries in the US, Brazil, Canada, France, Austria, Italy, China and Germany as well as sales partners worldwide we are always close to our customers.
From motor protection to diagnostic systems – KRIWAN supplies complete system solutions perfectly coordinated.
Our products reliably protect machines and systems from failures – even under extreme conditions.
Continuous development and high investments in research & development make us an innovation leader in sensors, protection and diagnostic technology.
Our solutions are energy-efficient, resource-conserving and suitable for use with natural refrigerants and renewable energies.
With the INTspector App and our intelligent diagnostic systems, operators and service personnel world-wide have the condition of their systems in view – transparent, mobile and always available.
We see ourselves as partners and system suppliers. We listen, analyse and develop together with our customers individual solutions and products for their markets and applications.
When investing in machines and systems, the deciding factor is not the purchase price, but the total cost over the life cycle. For OEMs and system builders this means: Only products that are reliable, durable and low-maintenance ensure long-term low operational costs and high efficiency.
Robustness: Protection and monitoring solutions, sensors and relays are designed for extreme conditions – durable, reliable and low maintenance.
Modularity: Flexible, interchangeable components enable easy adaptation to different systems and processes.
Quality: Precise manufacturing, extensive testing and high reliability minimise failures and downtime.
Digital integration: With networking and diagnostic systems, systems can be monitored, maintenance planned and faults detected early – for maximum system safety.
It’s not the purchase price that decides – it’s the life-cycle costs!
By using KRIWAN protection sensors, you save in the long term on life-cycle costs of your plant – high operational safety included.
KRIWAN Industrie-Elektronik GmbH
Allmand 11, 74670 Forchtenberg
Germany
KRIWAN Industrie-Elektronik Austria GmbH
Leopoldstrasse 39
6020 Innsbruck
Austria
KRIWAN Italia S.r.L. unipersonale
Registered Office:
Via Nazionale n. 140/C
I-23821 Abbadia Lariana (LC)
Italy
Operational headquarter:
c/o Olimpia srl
Via delle Industrie 4
I-26835 Crespiatica
Italy
Kriwan France SARL
ACTIVILLAGE TRANCHE 1
9 Allée des Tulipiers
69500 BRON
France
Kriwan China
Unit 1305A, 13th Floor,
Area 101, Floors -3 to 24,
Building 5, No. 19 Dongfangdong Road,
Chaoyang District, Beijing 100600,
China
Kriwan Americas Inc.
470 Windsor Park Drive
Dayton, OH 45459
USA
Kriwan Indústria Eletrônica do Brasil Importação e Exportação Ltda.
Av. Brig. Faria Lima, 2.369 cjto. 315 - Jdm. Europa
01452-000 Sao Paulo - SP
Brasil
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