Product Description
The UB40.241 is an uninterruptible power supply controller (DC-UPS controller), which is used in combination with a 24V power supply and an external 24V-battery pack to bridge power failures. When the power supply provides sufficient voltages, the DC-UPS controller charges the battery. When the power supply voltage fails, the energy stored in the battery is released to the DC bus in a regulat e d process. A unique feature is the battery charger, which can balance two unmatched batteries and which includes two independent battery testers for the two 12V batteries connected in series. This feature makes matching batteries unnecessary and allows for precise battery charging, testing and optimized usage of the battery capacity to achieve the longest battery service life. The device includes various battery diagnostic functions includi ng a battery-low pre-warning signal that ensure a reliable operation of the entire system. Furthermore, temperature-controlled charging extendsthe life of the batteries. It also includes a selectabl e buffe r time limiter as well as “Ready”, “Buffering” and “Replace battery” contacts. For safety and maintenance, an inhibit-input signal is included to enable phases without enforced buffering.

DC-UPS Control Unit

• 1-Battery-Concept - Each 12V battery is charged and monitored separately for longest battery life, matching of batteries not necessary
• Output is decoupled from the input to separate load circuits into buffered and non-buffered sections
• Allows VRLA Battery sizes between 12Ah and 200Ah; “Battery Size” selector for various battery sizes
• 50% BonusPower for up to 5s
• Superior battery management for longest battery life
• Comprehensive diagnostic and monitoring functions
• “Replace Battery” signal included
• “Battery-Low Prewarning” signal included
• selectable buffer time limiter
• Temperature controlled battery charging
• 3 Years warranty

Order Numbers
DC-UPS
UB40.241 Standard DC-UPS unit

Batteries
UZK24.122 Battery module 24V, 12Ah
UZO24.122 UZK24.122w/o batteries
UZK24.262 Battery module 24V, 26Ah
UZO24.262 UZK24.262w/o batteries
UZK24.262-E1 Battery extension 24V, 26Ah
UZO24.262-E1 UZK24.262-E1 w/o batteries
UZW24.100 Connection and wiring kit
UZW24.101 Connection and wiring kit
UZS24.100 Sensor and center-tap board