Integrated Rectifier Technologies
Benchmark Series Cathodic Protection Rectifier
SKU: IRTBMKAIR
An economical, space-saving air-cooled rectifier designed for basic cathodic protection applications with lower DC output requirements.
The Benchmark Air Series is an air-cooled rectifier designed for basic cathodic protection (CP) applications where economy of price and space is a concern. Its compact design and straightforward features make it suitable for applications requiring lower DC output ratings, generally up to 100 volts, 34 amperes or 2,250 watts. With flexible output adjustment and a selection of optional features, the Benchmark Air Series can also be customized for multi-zone cathodic protection applications.
Volume discounts are available for qualifying bulk orders. Use the Request Quote button to receive customized pricing.
Key Benefits
- Economical design: Provides an economical option for cathodic protection applications requiring basic features and lower rectifier DC output ratings.
- Flexible configuration: Accommodates varying AC input voltages and DC output voltage and current ratings to meet many application requirements.
- Customizable output adjustment: Offers additional tap steps or near-infinite output adjustment via a variable-type transformer to meet specific application requirements.
- Simplified maintenance and servicing: Provides access to internal components through a single front-hinged door, with components assembled onto a single removable chassis panel.
- Surge and lightning protection: Includes medium-energy surge/lightning protection devices on the AC input and DC output as a standard feature, with higher-energy protection available as an option.
Specifications
- Cooling: Air-cooled
- Rectification: Silicon diode rectification bridge with surge protection
- Enclosure: Type 3R, lockable, with a single front-hinged door
- Standard enclosure material: 14-gauge mill-galvanized steel with white fusion-bonded polyester powder coating
- Optional enclosure materials and finishes: Limited selection of alternate gauges, materials and finishes available
- Enclosure hardware: Stainless steel hardware
- Electrical hardware: Brass or copper with electroless nickel-plated finish
- Electrical connections: Double-nutted
- Component access: Single front-hinged door
- Frame construction: Removable chassis panel
- Mounting options: Wall, frame or flat post mounting; base mounting optional for B-3 size and larger enclosures
- AC input: Single-phase standard; three-phase optional
- Available AC input voltages: 115, 208, 230, 416, 460, 115/230 or 230/460 VAC
- DC output ratings: Generally up to 100 V, 34 A or 2,250 W
- Output adjustment: 25 steps (5 coarse and 5 fine) of transformer tap terminal block adjustment
- Optional output adjustment: 30, 36 or 42 steps; near-infinite adjustment via a variable-type transformer may also be available
- Transformer: Class H temperature-rated, with overcapacity design and minimum 95% efficiency
- AC input protection: Magnetic-trip AC input circuit breaker(s)
- Secondary protection: AC secondary high-speed fusing with spares; additional fusing and circuit breakers optional
- Overload / short-circuit protection: Provided by the rectifier and fusing
- DC output metering: Single 3½-inch analog meter with a selector switch for voltage and current readings, with ±2% accuracy
- Optional metering: Digital meters available
- Surge protection: Standard AC and DC surge protection; higher-energy protection available and recommended for lightning-prone areas
- Operating ambient temperature: -50°C to +45°C (-58°F to +113°F)
- Electrical approval: NRTL electrical approval (CSA/US, Intertek/ETL)
- Optional features: Alarm circuit, upgraded diode voltage rating, efficiency filter (choke), GFI convenience outlet, interrupter circuit, extra DC output meter, auxiliary positive or negative output circuit, sealed meter switch, potential meter and non-standard surge protection
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Shipping & Returns
Shipping costs and delivery timelines vary by order. All returns require prior written approval and may be subject to a restocking fee.
Please review our Terms & Conditions for complete shipping, return, and warranty details.
