Aproco develops and manufactures earthing resistors exactly to your specifications. Aproco is a well-established, reliable, highly experienced and knowledgeable partner with an organization that guarantees quick delivery.

We manufacture resistors for every possible application. Our earthing resistors are famed for their quality and long lifespan.

All of our resistors are compliant with the internationally recognized American National Standard IEEE-32:1972.

If you have any questions regarding additional testing or compliance with standards, or if you need adjustments such as an insulated switch, special terminal box or special casing, or if you require OEM use or need a specific installation/location, then contact us.

In collaboration with renowned manufacturers such as Ergun Elektrik, Aproco provides the best possible solution at the best possible price.

(Neutral Earthing Resistor = NER / Neutral Grounding Resistor = NGR)


Aproco Drive Technology - Electic Motors

We specialise in NEMA and IEC electric motors (NEMA often for export to the USA, 50 and 60 Hz / UL / CSA / AC-DC), special high-precision (SIL3 / PLe) and/or heavy-duty encoders, earthing resistors and industrial connectors. Aproco supplies an extensive range of standard products from stock and manufactures customised products for (heavy) industrial, maritime and special project applications.

If you need to replace an electric motor or need a fast solution for a new project or due to expansion, Aproco is your partner. We can supply you with identical products or equivalent models (Also if you only need one custom motor or generator). The A-brands which we distribute globally complement every possible product range. Aproco is both an advisor and a supplier in the field of electronic drive technology. If you have any questions, please contact us at: This email address is being protected from spambots. You need JavaScript enabled to view it.

We’ll be glad to help you.


Contact Us

Haparandaweg 67-D4
1013 BD AMSTERDAM        
The Netherlands

This email address is being protected from spambots. You need JavaScript enabled to view it.
0031-(0)85-13 03 847

Aproco brochure (in Dutch)