E. Dold & Söhne KG is an international, medium sized family company which develops, produces and sells components for the safe automation as well as measuring- and monitoring device and power electronics all over the world. The Dold philosophy "Our experience, your safety" constitutes our program: Offering solutions based on over 90 year experience with a workforce of more than 400 employees, we manufacture high quality products using sate-of-the-art-production plant at our Furtwangen facility in Germany. Dold always developed successfully itself: From pioneer of the relay technology to one of the leading European companies for safety- measuring – and monitoring devices as well as for drive engineering. Wherever people, machines and products must be protected against injury or damage and productivity increased, DOLD relay modules and interlocks have been successfully developed worldwide for many decades.
The compact DOLD solid state relay POWERSWITCH PH 9270 has integrated monitoring functions and is suitable for high frequency operation. It switches wear free, noiseless and has a nearly unlimited service life. In addition it offers significant cost saving and increased availability with its intelligent monitoring functions. Among various other applications it can be used for critical heater controls in plastic and rubber manufacturing as well as in packaging and food industry.
Easy handling and comfortable features make the safe speed monitor UH 5947 in the new SAFEMASTER S-series of DOLD outstanding. Standstill, over- and underspeed are safely monitored in automatic and set up mode. In addition the UH 5947 includes a safety gate monitoring function. The unit fulfills the safety requirements up to PL e/Cat 4 and SIL CL3 to EN ISO 13849-1 and EN/IEC 62061.
Reliable fire and system protection
Early detection of insulation faults can prevent failure of complete electrical plants. Fault current monitoring by measuring differential current is the ideal method for this application. The type B differential current monitor VARIMETER IP 5883 of DOLD detects DC as well as AC fault currents in grounded voltage systems. The measurement is done by an external current transformer.
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