Könner & Söhnen KS 24VS-DC DC generator

TheKönner & Söhnen KS 24VS-DC is a specialised DC generator designed specifically for charging batteries in 24 V systems. Unlike conventional AC generators, this model functions as a backup battery charger and eliminates the need for additional voltage conversion. This is precisely why it is particularly well suited to systems where efficiency, lower fuel consumption and a more straightforward battery charging logic are important. :contentReference[oaicite:1]{index=1}

The model operates in the 24–27 V range, has a rated power of 1.6 kW and a charging current of up to 60 A. The document states that the generator is specifically designed for charging batteries with a voltage range of 24–27 V, and the charging process itself is implemented according to the IUo characteristic. Initially, the battery is charged with a constant current of 60 ± 3 A until a voltage of 27–27.5 V is reached, after which the generator switches to constant output voltage mode. This allows for a straightforward and efficient charging scheme without complex intermediate solutions. :contentReference[oaicite:2]{index=2}

One of the main advantages of the KS 24VS-DC is its automatic operation. In AUTO mode, the generator monitors the battery voltage itself and starts up when it drops to 23.5–24 V. Once the voltage reaches 27–27.5 V and the charging current falls below 25 A, the generator switches off automatically. This feature is very convenient in backup systems, where it is important for the equipment to operate autonomously without constant manual supervision. :contentReference[oaicite:3]{index=3}

In addition to automatic mode, the model supports MANUAL/EXTERNAL CONTROL. This means that the generator can be started manually or via an external device using dry contacts. The document explicitly states that this mode is suitable for integration with inverters, uninterruptible power supplies, batteries with BMS, voltage control relays, timers and other automation systems. It is this flexibility that makes the model suitable not only for simple backup but also for building more sophisticated and automated power solutions. :contentReference[oaicite:4]{index=4}

The KS 24VS-DC is well suited to a variety of usage scenarios. These include charging batteries as part of a solar power station, working with CCTV systems, security systems, telecommunications equipment, or supporting a battery whilst a vehicle is parked. In all these cases, what is particularly valuable is not simply the presence of a generator, but its ability to operate as part of a system that responds to the battery’s condition and switches on when it is actually needed.

Another strong point of the model is its soundproof housing. It significantly reduces noise levels during operation and makes the generator more suitable for use in residential, technical or service areas. The KS 24VS-DC has a stated noise level of 62/93 dB, which is a good figure for a generator of this size and purpose. :contentReference[oaicite:5]{index=5}

The control panel features a voltage indicator, an overload indicator, an oil level indicator, a voltmeter and an ammeter. This allows the operator to quickly monitor key operating parameters and the generator’s status. The green power indicator flashes or remains lit depending on the current draw, whilst the protection system monitors for overloads, short circuits and other critical conditions. If the voltage on the 24 V bus or battery reaches 30 V or higher, the generator switches off. If the output voltage drops below 20 V, this is detected as a short circuit, and the generator also stops. :contentReference[oaicite:6]{index=6}

The model is equipped with a KS 100i 4-stroke petrol engine with a displacement of 79.7 cm³ and a power output of 2.5 hp. The fuel tank has a capacity of 5 litres, and the oil sump — 0.4 litres. The generator runs on unleaded petrol with an octane rating of 90–95, containing no more than 10% ethanol. SAE 10W-30 and SAE 10W-40 oils are recommended for the engine. :contentReference[oaicite:7]{index=7}

The generator comes complete with two 48 V power cables, a jumper cable for the control contacts, a spare fuse, an oil funnel, a spark plug wrench, a screwdriver and a cover for accessories. This adds to the model’s practicality and simplifies its preparation for use immediately upon receipt. :contentReference[oaicite:8]{index=8}

It is also worth noting that the generator is intended solely for charging the battery and must not be used to connect electrical loads directly. Furthermore, the cable from the generator to the battery must be protected by a 70–80 A fuse, and the generator itself does not have its own battery but is started from a connected battery. It is precisely this specialisation that is its main advantage: it is designed not as a universal ‘all-purpose’ generator, but as a dedicated tool for the stable operation of 24 V battery systems. :contentReference[oaicite:9]{index=9}

Given its compatibility with Tandem Power and the ability to operate in tandem with the KS 3000PS, this model becomes even more appealing to users who wish to build a flexible backup system with battery storage and a well-designed automatic recharging logic.