PULS
24 V dc UPS for external battery 17-130 Ah. 10 A
UB10.242 is primarily intended for use where there are requirements for long back-up times with relatively low current. A complete DC-UPS system consists of a control unit and battery, and power supply with suitable power for the application. In the event of a power outage, the battery is automatically switched in and supplies the connected loads. The control unit requires just (1) 12 V battery that then transforms the battery voltage up to 22.3 V dc. Two batteries do not need to be matched with one another and the output voltage does not follow the battery's discharge curve but is instead constant at 22.3 V. The battery capacity is utilized 100 % compared with two batteries connected in series, where one of the batteries is not fully charged.
Two relay outputs indicate status; the module is ready (battery capacity >85 %) and the module is active (back-up mode). The control unit tests the battery's condition in cycles. When it is time to replace the battery, a relay output is activated (replace battery). The control unit has an integrated temperature sensor to optimize the final charging voltage. If the battery is placed at another location and the ambient temperature differs from the control unit, a compensation must be set, which is done using a switch on the front. To attain the longest lifetime for the battery, we recommend placing the battery in the coolest part of the cabinet.
The back-up time is dependent on the capacity and performance of the battery and the load current. On the data sheet, we show some times for different standard batteries. The control unit protects the battery from deep discharge. The control unit shuts off the back-up function when the battery voltage drops under a given value. There is also an input, Inhibit, for external shut-off of the back-up time.
In the event of a battery fuse fault, the “ready” output is deactivated and a red LED lights on the control unit. The output is current limited and turns itself off after about 5 seconds after a short circuit to spare the battery and at the same time, avoids tripping the battery fuse. In the event of a short circuit in the battery mode, the module supplies about 20 A, which helps trip any secondary fuses.
Monitoring of the battery fuse and current limitation in the event of short circuits provides increased reliability and guarantees that the UPS will function after a short circuit. The input is galvanically isolated from the output side.
Backup times
Discharge curve with 2 A load current | Discharge curve with 10 A load current |
- Load current 10 A
- Requires just one 12 V dc battery
- Battery charging with temperature compensation
- Electronic overload/short-circuit protection
- Relay outputs for status
Selected variant
DC UPS 24V dc I/P 24V dc 10A O/P 17-130Ah
Art:
Selected variant
Specifications
| Approvals | ABS, CB, CE, CSA, CSA US, EX, GL, IECEx, UL |
|---|---|
| Charging The Battery Type | 3 |
| Depth | 117 |
| Efficiency | 97.8 |
| Height | 124 |
| Input Current During Charging Of Aggregates | 2 |
| Input voltage for battery connection | 22.8 |
| Input Voltage From battery | 12 |
| Input Voltage From The Unit | 24 |
| IP Class | IP20 |
| Life span | 114 000 h @ 10 A, 40 °C |
| Material Protection | Aluminium |
| MTBF (IEC 61709) | 886 000 h @ 10 A, 40 °C |
| Output current at 24 V dc | 10 |
| Output Current During Normal Operation Via The Unit Max | 15 |
|---|---|
| Output current for battery operation max | 10 A (15 A @ 5 s) |
| Output Voltage at Battery | 22.25 |
| Output Voltage At Buffering | 22.25 |
| Output Voltage Normal Operation | 24 |
| Permitted Battery Sizes | 17-130 Ah |
| Ripple. max | 20 |
| Temperature Range Without Derating From | -25 |
| Temperature Range Without Derating To | 50 |
| Type Power Supply | DC-UPS |
| Weight | 0.545 |
| Width | 49 |
| Voltage Level Of The Connection Of The Battery | 22.3 |
Product description
UB10.242 is primarily intended for use where there are requirements for long back-up times with relatively low current. A complete DC-UPS system consists of a control unit and battery, and power supply with suitable power for the application. In the event of a power outage, the battery is automatically switched in and supplies the connected loads. The control unit requires just (1) 12 V battery that then transforms the battery voltage up to 22.3 V dc. Two batteries do not need to be matched with one another and the output voltage does not follow the battery's discharge curve but is instead constant at 22.3 V. The battery capacity is utilized 100 % compared with two batteries connected in series, where one of the batteries is not fully charged.
Two relay outputs indicate status; the module is ready (battery capacity >85 %) and the module is active (back-up mode). The control unit tests the battery's condition in cycles. When it is time to replace the battery, a relay output is activated (replace battery). The control unit has an integrated temperature sensor to optimize the final charging voltage. If the battery is placed at another location and the ambient temperature differs from the control unit, a compensation must be set, which is done using a switch on the front. To attain the longest lifetime for the battery, we recommend placing the battery in the coolest part of the cabinet.
The back-up time is dependent on the capacity and performance of the battery and the load current. On the data sheet, we show some times for different standard batteries. The control unit protects the battery from deep discharge. The control unit shuts off the back-up function when the battery voltage drops under a given value. There is also an input, Inhibit, for external shut-off of the back-up time.
In the event of a battery fuse fault, the “ready” output is deactivated and a red LED lights on the control unit. The output is current limited and turns itself off after about 5 seconds after a short circuit to spare the battery and at the same time, avoids tripping the battery fuse. In the event of a short circuit in the battery mode, the module supplies about 20 A, which helps trip any secondary fuses.
Monitoring of the battery fuse and current limitation in the event of short circuits provides increased reliability and guarantees that the UPS will function after a short circuit. The input is galvanically isolated from the output side.
Backup times
Discharge curve with 2 A load current | Discharge curve with 10 A load current |
.png?as=1&iar=0&hash=6DDD16B03C4B424998A14DE19FF641F1)
Electrical Protection in Energy Storage Systems (ESS): Keys to a Safe Installation
The PMX fuse holder range is compact, halogen-free, and manufactured in Europe for fast availability. Available in 10×38, 14×51, and 22×58 sizes with IEC, UL, and CSA approvals, they feature silver-plated contacts, IP20 touch-safe design, and optional blown fuse indicators — giving panel builders reliable, safe, and flexible protection.
Wayne Moody Joins OEM | Demesne Electrical
We’re excited to share some great news at Demesne Electrical. Wayne Moody has joined our team, bringing with him years of experience and a clear vision for the future. His focus will be on building on our strong reputation here in Ireland and driving our growth across Europe.
PMX Fuse Holder Range – Compact, Reliable, Built for Demanding Panels
The PMX fuse holder range is compact, halogen-free, and manufactured in Europe for fast availability. Available in 10×38, 14×51, and 22×58 sizes with IEC, UL, and CSA approvals, they feature silver-plated contacts, IP20 touch-safe design, and optional blown fuse indicators — giving panel builders reliable, safe, and flexible protection.
Stego Enclosure Heaters with Loop
STEGO’s new loop enclosure heaters are a smart fix for condensation in control cabinets. They heat evenly, install fast with no tools, and come in a range of sizes from 10 to 150 W. They're tough, touch-safe, and even have a built-in thermostat option—everything you need to protect your gear and keep things running smoothly.
Precision in Motion: Kübler Linear Measurement Systems at Demesne Electrical
Precise, Durable Linear Measurement from Kübler
Browse our range of Kübler draw wire encoders and linear measurement systems, designed for accurate position and speed sensing in industrial and OEM applications. Built for tough environments. Trusted by automation professionals.
New on the Market: RKA Aluminium Terminal Blocks for Copper and Aluminium Conductors
Designed by HORA eTec, the RKA series offers a complete lineup of aluminium terminal blocks built for both aluminium and copper conductors. Every model in the range includes push-through protection, is finger-safe, and is built with installation efficiency in mind. From compact control panels to large-scale systems, here’s the full breakdown—from the RKA 16 to the RKA 300.
