Charge Controllers
Charge Controllers
BrandSteca
Steca PR
£ 70.43GBP · price may vary
BrandSteca- Model
- ST-PR1010
- Specifications
- 4
- System Battery Voltage12V, 24V
- ConnectionScrew terminals
- Weight (kg)0.35
- Warranty2
Overview
A range of PWM solar charge regulators rated from 10-30A, ideal for any small to medium size system which adapts automatically for use in either 12 or 24 V systems. Includes automatic low voltage disconnection and a manual load switch. Protection features include an automatically re-settable electronic fuse for maintenance free operation. Includes large self explanatory LCD display showing voltage, charge & discharge current. Built in Ah counter. System settings are configurable by means of buttons on the front of the unit. Operation from - 10 to + 50°C. Terminals take up to 16 sq mm cables. State of charge determination with Steca AtonIC (SOC) Automatic detection of voltage Graphical LCD display for operating parameters, fault messages Multistage charging technology Load disconnection depending on SOC Automatic load reconnection Temperature compensation Negative earthing of one or positive earthing of several terminals possible Integrated data logger (energy meter) Evening, night light and daylight functions Integrated self test Monthly equalisation charge Simple menu-driven operation Programming by buttons Manual load switch
Specifications
| System Battery Voltage | 12V, 24V |
|---|---|
| Connection | Screw terminals |
| Weight (kg) | 0.35 |
| Warranty | 2 |
How to read this datasheet
Steca PR is listed with 4 published specifications from Steca, including system battery voltage of 12V, 24V, connection of Screw terminals, weight (kg) of 0.35 and warranty of 2. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For a charge controller, the figures that matter most are maximum PV open-circuit voltage, the hard limit that must survive cold-morning Voc rise, supported battery voltages (12/24/36/48 V) and chemistries, conversion efficiency, typically 96–99% for a good MPPT unit and whether it offers a load output, temperature compensation and remote monitoring. In any system with a battery and a separate array, the controller is what protects the most expensive component and determines how much of the array's output actually reaches storage.
Before you buy a charge controller
The checks below apply to any charge controller. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Size the current rating from array watts divided by battery voltage, then add at least 25% margin for cold, bright conditions where panels exceed their rated output.
- Check the maximum PV input voltage against the array's Voc at your coldest expected temperature, not at 25 °C — Voc rises as temperature falls, and exceeding the limit destroys the controller instantly.
- Confirm the controller supports your battery chemistry with the right charge profile. Lithium, AGM, gel and flooded batteries need different absorption and float voltages.
- Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
Common mistakes
- Sizing on rated array watts alone and ignoring the voltage ceiling, which is the most common way controllers are killed.
- Using a PWM controller with a high-voltage grid-tie panel — the voltage mismatch wastes a large share of the panel's output.
- Running the load output beyond its rating instead of wiring heavy loads directly to the battery through a fuse.
Price and availability in United Kingdom
Steca PR is listed at £ 70 (GBP) for United Kingdom. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United Kingdom: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Steca locally before ordering.
Steca PR — frequently asked questions
How much does Steca PR cost?
Steca PR is listed at £ 70 (GBP) for United Kingdom. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of Steca PR?
We hold 4 published specifications for this charge controller, including system battery voltage 12V, 24V, connection Screw terminals, weight (kg) 0.35 and warranty 2. The full table is on this page, listed under model ST-PR1010.
Who makes Steca PR?
Steca PR is a Steca product, listed under charge controllers with model reference ST-PR1010. The Steca brand page lists the rest of its range so you can compare across the catalogue.
Is Steca PR right for my system?
That depends on what it has to connect to. For a charge controller, check conversion efficiency, typically 96–99% for a good MPPT unit, whether it offers a load output, temperature compensation and remote monitoring and type: MPPT or PWM against the rest of your equipment before price enters the decision. Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
Where can I buy Steca PR in United Kingdom?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United Kingdom — buying in-channel is what keeps the manufacturer's warranty valid.
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