Since 1995 Camtec has been a leading German supplier of demanding power supply systems.

The product portfolio includes one-phase and three-phase embedded power, DIN rail power supply, enclosed box power supply, base plate cooled power, FET-based DC power switches, programmable power supply and a family of very exact electronic AC inrush current limiters for capacitive loads.

Custom power supply systems and electronic manufacturing

Camtec is a specialist in creating demanding power supply systems, particularly for natural cooled AC/DC power supplies.

Our products are used in various outdoor applications, such as traffic control systems, infrastructure and high-power LED lighting, railway, armed forces and automotive and in high-power DC-UPS chargers up to 100kW.

AC/DC DIN-Rail power supply 5Vdc – 400Vdc / 10W – 1.5kW.
Programmable AC/DC DIN-Rail 0-400Vdc / 480W – 1.5kW.
Battery charger rectifiers 12 – 800Vdc / 480W – 3kW DIN-Rail and embedded.
DC-UPS and DC-redundant power distribution custom design.
AC inrush current limiter ESB 1Ph and 3Ph 3.6kW – 48kW.
Custom-designed switch mode power supplies 300W – 6kW V-mode / C-mode AC/DC and DC/DC, programmable.

Our design team is ambitious in its customised designs. With our own electronic manufacturing capability Camtec is able to create custom-designed solutions for low and middle quantity orders every year. Camtec Power Supplies is no mass manufacturer – our profession is the demanding application of high-end integrated systems.

Camtec’s standard products already provide a smooth C/V characteristic to start very complex loads such as LED lighting, DC/DC-converters and serious DC motor drives. Our DIN rail power supplies are designed for base plate cooling on a hard mount. All switch mode power supplies are designed for natural cooling and with a standard ambient temperature between -20°C to 70°C.

The mechanical design of our products is extremely robust and is made for long-term use. Our design standard is 17-18 years and uninterrupted service at 40°C. We use only high-end brand electronic parts from the best manufacturers in the world.

Camtec’s quality management integrates an ISO9001:2008 certification and a UL-controlled production. Upon demand, we can provide total traceability level. Our list of customer references can be named as outstanding.

Electronic inrush current limiters

The Camtec ESB-series is the second generation of cost-effective electronic AC inrush current limiters. The limiters ESB101, ESB201 and ESB00351 are made for one-phase 115/230Vac 16-30A networks. The ESB00163 and ESB00323 are designed for three-phase 200/400/500Vac 16-32A networks.

The line frequency range varies from 16.5Hz – 440Hz. The ESB-limiter is located between the line-switcher/contactor and the load. The ESB-models are designed for inductive and capacitive loads.

The main use is to protect the installed MCB from tripping. It protects power relays and contactors from burned contacts while switching various switch mode power supplies. The ESB is used to protect AC-UPS converters to operate into the current limiting mode and undesired overpower shutdown.

When switching-on the system, the inrush current of the installed load will be limited for the defined time Ton. Independent from the previous inrush level, the current limiting is always strict to the selected peak level. After Ton elapses the current limiting circuit of the ESB will be bypassed. The electrical network can be stressed with current loads as normal. If an AC dump overshoots the defined time Toff, it will be detected by the ESB. As soon as the AC recovers the inrush will be limited, again. The limiting occurs in each phase independently. The ESB-family provides an internal temperature control.

In case of a failure the device shuts down to safely prevent overheating or burning. The standard ambient temperature varies from -40°C up to 70°C without derating. Electrical parts are fixed against shock and vibration. The operation altitude is up to 13,123ft (4000m) above sea level.

AC/DC switch mode power supplies on DIN-rail

Camtec is known for exceptional lifetime and high-performance SMPS on DIN Rail. Customers in 50 countries worldwide rely on our products in demanding applications. The product range of the HSW, HPW, HPV and HSE families provide 10W to 1,500W output power. The voltage ranges from 5Vdc to 400Vdc. 95% of the SMPS are designed with natural cooling -20°C to 70°C. The HSEUreg- and the HSEUireg-series is an interface programmable DIN rail power supply family from 0 to 400Vdc. Its operation quality easily reaches the level of demanding laboratory power supplies.

The Camtec DIN rail SMPS are designed for critical loads like DC-drives, DC/DC-converters, piezo drives, LED-drivers and battery charging. The products combine high-density packaging and an exceptional lifetime performance. 3kV or 4.2kV electrical isolation is a standard. Fixed parts to resist vibration and shock, e.g. optional coating for each product, are standard.

The power supply is used in a large variety of applications, including traffic control systems, railway, defence, offshore, plant building, test benches, science, infrastructure and cities.

Battery chargers and DC-UPS

Camtec offers various rectifiers ranging between 480W DIN Rail to 3kW embedded power modules. We can deliver a complete custom-made DC-UPS system from a simple KISS-UPS to a complex charger for railway or IT systems. A setup of a maximum of 100kW controlled DC-charger is possible. All chargers perform fixed parts and optional coating as standard.

References are available for railway, automotive plants, IT centres, government facilities and nuclear plants.