Integrated Rectifier Technologies
C.P. Sentinel “Aqua-Line” Series Cathodic Protection Rectifier
SKU: IRTCPSENTAQA
An air-cooled rectifier designed for water and wastewater applications requiring precise, stable IR-drop-free cathodic protection control.
The C.P. Sentinel Aqua-Line Air Series rectifier was developed specifically for the water and wastewater market and designed to meet the requirements of the American Water Works Association (AWWA) Standard D104-97. Using the Sentry controller, it automatically adjusts DC output to maintain the operator-selected structure-to-reference electrode potential, with additional automatic current and voltage control modes. Its UV-stabilized fiberglass-reinforced polyester (FRP) enclosure, touch-safe instrument panel and loss-of-reference shutdown feature support reliable operation and operator safety.
Volume discounts are available for qualifying bulk orders. Use the Request Quote button to receive customized pricing.
Key Benefits
- Precise potential control: Maintains the selected IR-drop-free structure-to-reference electrode potential within ±5 mV of the set point.
- Automatic output adjustment: Provides automatic potential, current and voltage control, with seamless transitions between operating modes.
- Protection against excessive output: The loss-of-reference shutdown feature turns off DC output if the reference electrode connection or electrode fails, helping prevent excessive cathodic protection levels that can cause coating failure.
- Enhanced operator safety: A touch-safe hinged instrument panel separates the operator from live electrical components.
- Protection in outdoor environments: The UV-stabilized FRP enclosure has a Type 4X rating, with high-energy AC input and DC output surge/lightning protection included as standard.
Specifications
- Rectifier type: Air-cooled cathodic protection rectifier
- Controller: Sentry controller
- Control modes: IR-drop-free potential, constant current and constant voltage; automatic transitions between modes
- Control accuracy: Potential control within ±5 mV of set point; current and voltage accuracy varies by source documentation
- Reference electrode input resistance: Greater than 20 MΩ
- Loss-of-reference protection: Automatically shuts down DC output if the reference electrode input fails
- Anti-spiking circuitry: Helps prevent current overshoot during current interruption
- Standard DC output ratings:20 V, 5 A30 V, 8 A30 V, 16 AOther ratings available as an option
- AC input: 115 V single-phase standard; other options available by consultation
- Manual output adjustment: 25 transformer tap steps, with 5 coarse and 5 fine adjustments
- Enclosure: Type 4X UV-stabilized white FRP, with stainless steel hardware
- Enclosure access: Single lockable front-hinged door and removable chassis panel
- Instrument panel: Touch-safe hinged panel
- Electrical hardware: Brass or copper with electroless nickel-plated finish; double-nutted connections
- Rectification: SCR/diode rectification bridge with surge protection
- Protection: Magnetic-trip AC input circuit breaker, AC secondary and DC output fusing, overload and short-circuit protection
- Metering: Three digital LED meters for DC output voltage, DC output current and structure-to-reference electrode potential, with an OFF/ON switch
- Surge protection: High-energy AC and DC surge/lightning protection
- Operating ambient temperature: Source documentation lists -40°C to +45°C in one specification and -40°C to +50°C in another; confirm the applicable rating
- Mounting: Wall or frame mounting; pole mounting optional
- Electrical approvals: CSA approval and NRTL approval (Intertek/ETL) are referenced in the supplied documentation; confirm for the specific model
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Shipping & Returns
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