Original EAW Elektro-Apparate-Werke Berlin-Treptow electromechanical relay protection unit, type RSZ 3w3, manufactured in the former DDR (East Germany).
This is a vintage industrial electrical protection device designed for three-phase overcurrent protection applications. The unit features individual current sections for the three phases R / S / T and an electromechanical timing mechanism.
| Parameter | Specification |
|---|---|
| Manufacturer | EAW – Elektro-Apparate-Werke Berlin-Treptow |
| Model / Type | RSZ 3w3 |
| PL-Nr. | 736567 |
| Rs. | 801519 |
| Protection Type | Overcurrent / Relay Protection |
| System | Three-Phase |
| Current | 5 A |
| Frequency | 50 Hz |
| Time Setting | Up to 6 seconds |
| Protection Rating | IP40 |
| Phase Sections | R / S / T |
| Construction | Electromechanical |
The unit provides individual adjustment of the current sections.
New Old Stock (NOS). The unit has not been used in service and has been stored for many years as old stock.
Due to its age and long-term storage, the item may show cosmetic signs of storage, including marks or minor imperfections on the housing and transparent protective cover.
Please inspect all photographs carefully. The photographs are an integral part of the condition description and show the actual item offered for sale.
Suitable for professional evaluation as a replacement, spare part, restoration component or historical reference for compatible legacy electrical systems.
| • Legacy EAW equipment restoration | • Industrial electrical engineering |
| • Relay protection systems | • Electrical switchgear restoration |
| • Maintenance of legacy installations | • Industrial spare parts |
| • Technical collections & museums | • Vintage electrical engineering |
This listing is for an original vintage EAW electromechanical protection unit identified as:
Its original DDR manufacture makes this unit particularly relevant to restoration projects and applications where an original historical component is preferred over a modern replacement.
This is vintage electrical protection equipment that has been stored for many years.
Before installation or energizing, professional inspection and testing are recommended. A qualified electrical or protection specialist should verify the unit's suitability, insulation condition, contacts, current settings and timing characteristics.
Please verify compatibility with your existing equipment and system specifications before purchasing.
The item will be carefully packed to provide appropriate protection during international transportation.
Shipping costs are paid by the buyer.
Additional photographs, measurements or technical information can be provided upon request before purchase.