Technical Specifications – ICCP Active Anode Systems for Water Heaters
System Selection Overview
Selection of the correct ICCP system depends on tank volume, material (enamelled steel or stainless steel), internal geometry, and number of heat exchangers.
All data are for guidance purposes only. The system component recommendations are target values and assume tanks manufactured in compliance with DIN 4753.
Indicative System Selection Guidelines
Selection of potentiostat model, current output and number/length of titanium electrodes depends on tank volume, material, number of heat exchangers and measured protection current demand.
The table below provides indicative values only. Final configuration must be verified according to the tank manufacturer’s data and, ideally, laboratory testing.
| Tank Volume (L) | Typical Electrode Configuration | Nominal Current (indicative) | Potentiostat Type (example) |
|---|---|---|---|
| 50 – 200 | 1 × TA 200–400 mm | 30 – 80 mA | MP or UP series (lower output) |
| 200 – 500 | 1 × TA 400 mm | 50 – 120 mA | UP 2.3 / MP 2.3 series |
| 500 – 1000 | 1–2 × TA 400–800 mm | 80 – 180 mA | UP 2.3 series or dual setup |
| 1000 – 2000 | 2+ × TA 400–800 mm | 120 – 250+ mA | Higher output or multiple units |
Important note: These are target/guidance values only. Binding system recommendations are contingent upon preliminary laboratory measurements of the specific tank by the manufacturer (Magontec guidelines). Tank height/width ratio and uniform anode distribution must also be considered.
Electrical Specifications
- Mains supply: 230 V AC / 50–60 Hz
- Setpoint protective potential: 2.3 V (enamelled steel tanks) / 1.9 V (stainless steel tanks)
- Nominal current range: approx. 30 – 250+ mA (depending on model)
- Power consumption: very low (max. ~4 W, typically a few euros per year depending on model)
- Protection class: Safety Class II
Electrode Specifications
- Material: Titanium
- Coating: mixed-oxide-coated titanium electrode
- Design: non-sacrificial (no material consumption)
- Available lengths: 200 mm, 400 mm, 800 mm and longer
- Exact length and number chosen according to tank size and surface area
- Multiple electrodes can be used for larger tanks
Potentiostat Specifications
- Function: automatic control of protective current
- Models: plug-in potentiostats with different nominal current outputs (e.g. 50 mA, 100 mA, 180 mA)
- Control: setpoint adapted for enamelled and stainless steel tanks
- Measurement: duty cycle operation (millisecond intervals)
- Monitoring: LED status indicator
- Operation: continuous 24/7 operation required
Installation Interfaces
- Standard magnesium anode ports (G ¾”, G 1″, G 1¼”)
- Sleeve mounting (replacement of magnesium anode)
- Insulated mounting (M8 bolt in inspection flange)
- Ground connection to tank shell (bare metal contact required)
Operating Conditions
- Operating temperature: up to 95°C
- Suitable for potable water systems
- Compatible with enamelled steel and stainless steel tanks
- Adaptation to varying water conductivity
Standards and Compliance
- DIN 4753-3
- EN 12897
- CE marking
Important Technical Notes
- The potentiostat must remain continuously connected to mains power
- Disconnecting power immediately stops corrosion protection
- Correct electrical isolation of the electrode is essential
- System performance depends on correct installation and grounding
- Any additional metallic parts (heat exchangers, heating elements) in enamelled tanks must be properly insulated
Need Exact System Selection?
For precise system configuration, provide:
- Tank volume
- Tank material (enamelled or stainless steel)
- Number of heat exchangers
- Photo of the data plate (type label)