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Item #
AR12W
Waterproof Advanced Alternator Regulator alternators smaller than 100 As
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List price: US$157.87
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KABAIR ALTERNATIVE
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Description
Waterproof IP67 Alternator Regulator for alternators up to 100A. It does not rust and can be hosed down in the engine bay. Turns an alternator into a 4-stage regulated battery charger with 9 preset battery chemistries, including desulphation/equalization cycles.
Unit Actual Rating (The Actual Device Rating) for the Pro Reg DW:
By far the most powerful regulator due to its fan cooling. Positive field control: 6A max field current. Negative field control: 18A max field.
Real World Rating (Rule of Thumb):
- 12/24V alternator with standard regulator fitted, up to approximately 400A alternator (more if negative field control).
- 12/24V alternator with no standard regulator, stand-alone: about 200A (more if negative field control).
Features for the Pro Reg DW Explained:
| Digital Software Control with Slow Start: Digital control (software) uses lines of computer code, digitally burned into a memory processor. This means complex information and algorithms can be processed that wouldn’t be possible with an analogue system. The unit ramps up current to reduce the chance of alternator belt slip. | Dynamic Progressive Battery Charging: The internal software calculates a different charging regime each time based on battery state, distinguishing different battery types and sizes. |
| Can be Used in Parallel or Standalone Reg: The unit can be used either in parallel with the original regulator or as a stand-alone regulator, offering a fall-back safety position in case of failure. | Programmable for Different Battery Types: It supports four main battery types: open lead acid/traction, sealed/gel, gel (Europe), and AGM, with different charging curves, temperature curves, and safety criteria for each type. |
| Single Unit Fits 99% of Alternators: Unlike other makes that require multiple models, the Sterling Reg covers nearly all alternators with a single unit, though correct information about alternators and batteries is required. | Charges to 4-Step Constant Current Progressive Charging Curves: Converts a basic constant voltage alternator into a modern 4-step constant current battery charger. |
| Totally Isolates the Regulator in Fault Condition: If the regulator fails, it physically breaks the field wire, guaranteeing that the regulator will stop working, preventing damage to the system. | Information 13 LED Display: Displays detailed information to the operator about the product’s status and the installation system. |
| Battery Temperature Sensing: One temperature sensor is included, adjusting charging curves based on ambient battery temperature. | High Battery Temperature Trip: If the battery temperature exceeds 50°C, the unit will turn off and display a warning. |
| High Battery Voltage Trip: If the battery voltage is too high, the unit will turn off and display a warning. | High Alternator Voltage Trip: The unit will trip if the alternator voltage rises too high, which can occur due to poor wiring or installation errors. |
| De-Sulphation Ability on Open Lead Acid Batteries: A charge cycle exceeding 14.4V will remove sulphate buildup and extend the battery life. | Auto Return to Standard Regulator on Failure: If the Sterling regulator fails, the standard regulator will automatically take over to allow continued operation, though at a lower charge rate. |
| Protects Batteries if Temperature Sensor is Open Circuited: In the event of a broken or open-circuited temperature sensor, the software will revert to default settings to protect the batteries. | Protects Batteries if Advanced Regulator Fails: In case of failure, most regulators fail closed, which can damage batteries. Sterling’s software prevents this by switching off the regulator in case of failure. |
| Alternator Temp Monitoring and Disengagement: Monitors the alternator’s temperature and disengages the unit if the temperature is too high, re-engaging once it cools down. | Up to 450A with Standard Regulator / 150A Standalone: It supports a higher current capacity depending on the configuration. |
| Monitors for Excessive Negative Voltage Drop and Trips: Ensures safe operation by detecting and reacting to excessive negative voltage drop. | Protects Batteries if Split Charge Relay/Diode Fails Open: Safeguards against failures in the split charge system, preventing damage to the batteries. |
| IP67 Waterproof and Ignition Protected: The regulator is fully waterproof and ignition-protected for use in demanding environments. |
The Problem with Standard Systems:
Standard alternators are designed only to charge the engine start battery and not for optimal battery charging. The Sterling Regulator converts a basic alternator into a highly effective 4-step progressive constant current battery charger, dramatically improving charging rates by up to 200-2000%, depending on the quality of the original system.
What to Expect from an Advanced Regulator:
- Maintains maximum performance of the alternator's power curve within preset limits.
- Charges batteries 4-20 times faster (depending on the original system).
- Provides an additional 25-35% usable battery power, increasing the usable capacity.
- Prevents sulphate damage, resulting in longer battery life.
- Reduces engine running hours and compensates for wiring issues.
- Automatically adjusts for voltage drops from long cable runs, ammeters, and other wiring problems.
- Converts a machine-sensed alternator to a permanent battery-sensed alternator.
Brand: Sterling Power
Specifications
100% brand new and high quality. The product is the same size as the original part, and replacement is simple. One year warranty, shipped within 1-2 days and delivered within 10-20 days. To avoid buying the wrong accessories or should any problem arise, email us for advice and assistance.
OEM Number(s)
AR12W
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