NES Nová Dubnica · Exclusive Australian distributor
Cathodic protection rectifiers.
NES Nová Dubnica has been building power electronics in Slovakia since 1992 — cathodic protection rectifiers, impressed current power supplies and switching drainage units. Aegis Sentinel is their authorised distributor in Australia.
That means the full range, with stock and spares held in Melbourne and engineers who can size a unit, commission it and support it afterwards. Every rectifier can report into DataScape, so you know what it's doing without driving to it — whether it's protecting a buried pipeline, a storage tank, a wharf or reinforced concrete.
Product range
1 A to 100 A, off the shelf
Standard units from 1 A to 100 A, with custom applications built for higher output. If what you need isn't listed, it's still available.
SZK Series
Air-cooled CP rectifiers
Switchmode impressed current cathodic protection rectifiers in a robust steel enclosure. A wide range of output voltages and currents to suit pipeline, tank and structural protection.
- 1 – 100 A standard
- IP 55 / IP 65 options
SZKO Series
Oil-cooled CP rectifiers
For high-duty-cycle installations and environments demanding superior thermal performance and reliability.
- 50 A / 50 Vdc
- 58 °C ambient · IP 65
SDU
Switching drainage units
Automatic and manual switching drainage for stray current mitigation on DC traction networks. Fully compatible with VEC electrolysis committee requirements for the Victorian rail network.
- Tram and rail traction
- VEC compatible
AC/DC
Switching power supplies
High-efficiency IGBT-based switching power supplies with output ripple optimised for cathodic protection and galvanic plant applications.
- Efficiency up to 92 %
- Ripple < 1 % typical
Integration
Remote monitoring
All NES rectifiers integrate with DataScape via Modbus RTU/TCP — 24/7 remote monitoring, alarming and trending from a single dashboard.
- Modbus RTU / TCP
- RS-485 as standard
Custom
Special power supplies
NES designs and manufactures custom supplies for electroplating, DC/DC conversion, battery charging and DC UPS systems.
- Built to specification
Why Aegis Sentinel
Exclusive, and local
We're the exclusive Australian distributor, backed by an engineering team with deep cathodic protection expertise. Stock of common models and spare parts is held in Melbourne, with local commissioning and technical support across Victoria and nationally — so a fast response means days, not a shipment from Slovakia.
Compact design also makes these a straightforward replacement in an existing cabinet — and the integrated relay means instant-off surveys without extra hardware.
Specification
Key product features
Power
Switchmode IGBT
- Up to 92 % efficiency
- Output ripple < 1 % typical
- Wide input range — Australian 400 V / 230 V
- Surge and lightning protection
Control
E / U / I modes
- Constant current, voltage and potential
- Automatic and manual output adjustment
- Integrated current interrupter
- Integrated relay for instant-off surveys
Compliance
Standards
- CE marked — European and Australian standards
- AS 2832 compatible system design support
- VEC compatible drainage capability
- IP 55 and IP 65 enclosure options
Ready to discuss your requirements?
Contact the team to request a quote, a technical datasheet, or to arrange a demonstration. Tell us what you're protecting, current and voltage requirements, and site conditions.