Lion Precision

Dold company profile

DOLD – A family owned company with over half a century of experience designing and producing relay based products. A pioneer in the production of Switchgear and relays, E. Dold & Söhne KG is one of Europe’s leading ISO 9001 certified relay manufacturers. Dold products fulfil many national and international standards i.e. EN, IEC and VDE, as well as RoHS 2002/95/EG, in addition they also attain several third party approvals e.g.BG, TÜV, UL, CSA, ATEX, etc.

The precision manufacturing of Dold products is in keeping with the best of Black Forest traditions, which is the area its main manufacturing plant is situated. This private owned company has been producing quality relay products for some 80 years and is currently managed by the third generation of the Dold family. Dold currently employs over 500 employees, many of them have been with the company for more than two decades and freely associate themselves with Dold’s quality driven policies.

This creates a depth of knowledge that comprises of something far greater than the often-used buzz word ”Know how”. With its own tool and form production, an experienced plastic moulding department together with up-to-date manufacturing plant, Dold ensures flexibility, efficiency and a direct influence on delivery times, as is required by its customers. This depth of production control and the key optimisation of the electronic and mechanical components ensures that the high quality standards expected of Dold products are maintained.

In addition this level of design and manufacturing control leads easily to the production of custom built relay products to directly meet customer’s individual requirements. Dold’s product quality and reliability has lead it to be a respected supplier of measuring relay and safety products to the nuclear, power generation, water and railway industries.

A worldwide service network ensures that Dold products are readily available and in the UK Dold have their own technical support and distribution company Dold Industries Ltd. Dold Industries staff has been supporting UK customers since 1999 and offer free technical support and a prompt and friendly customer service. Many popular products are held in UK stock and with direct access to the factory stock profile; accurate and prompt delivery times can be maintained.

Product Range

Safety devices

Monitoring devises

Power electronics

Control devices

Installations electronics

PCB relays

Relay modules

Wherever people, machines and products must be protected against injury or damage and productivity increased, DOLD relay modules and interlocks have been successfully deployed worldwide for many decades.
In addition to a variety of devices with standard functions, DOLD can fall back on many years of experience in developing tailor made and economic problem solving solutions.


Safety devices »	Monitoring devices »	Power electronics »


Control devices »	Installation electronics »

Safety switch and trapped key interlock system

This safety switch and trapped key interlock system, especially designed according to DIN EN ISO 13849 and certified by TÜV, combines the advantages of safety switches, solenoid locks and trapped keys in one system. The modular design offers highest flexibility and safety to the user fulfilling his safety demands.


Locking (solenoid operated) »	Safety switches »	Locking (mechanical) »

Dold PCB relays

To meet the high quality requirements for PCB relays DOLD relies on high production depth, most modern production facilities and employees with decades of experience at out Furtwangen facility - Quality and reliability from a single source. The DOLD development departement focuses mainly on safety relays with forcibly guided contacts. DOLD offers these and standard printed circuit board relays according to customer specifications. What can we do for you?