Votronic 3075 Battery Protector 40A 12V battery monitor overvoltage protection

The VOTRONIC Battery Protector 40 is connected between the supply battery and the consumer and is suitable for all types of lead batteries (acid, gel, AGM) and brands. It protects the battery from dangerous deep discharge as well as the consumers and equipment from under- and overvoltage. Additionally, it can serve as a remote-controlled main battery switch, controlled by an external switch. The reset to normal operation occurs automatically as soon as the voltage rises again, for example, to 12.5 V due to battery recovery or brief charging. The shutdown can also be manually overridden using the "EMERGENCY ON" function. The Battery Protector 40 can be remotely controlled via the "Sensor +" terminal with a simple switch (1-pole ON/OFF), thus functioning as a powerful main battery switch. The EMERGENCY ON function is also remotely controllable.

Important product features:

• Switching current 40 A, temporarily overloadable up to 60 A
• Visible switching status indicator
• EMERGENCY ON function via switch on the device, also remotely controllable with an external switch
• Automatic reset as soon as the battery voltage is back in the normal range (charging)
• Separate sensor cable and switching thresholds with hysteresis and timer functions for trouble-free operation
• Bistable power relay, very low self-consumption, less than 3 mA (according to EN 13976)
• No self-consumption when switched off via an external switch, e.g., remote control as a main battery switch
• Solid screw terminals for battery and load cable cross-sections up to 10 mm²
• "Motor" version with higher cutoff thresholds maintains starting capability in emergency vehicles with only one battery circuit according to DIN EN 1789

Technical data:

• MPN 3075
• Operating voltage: 12V
• Switching current (continuous/short): 40A/60A
• Undervoltage switching threshold: 10.7V
• Undervoltage reset point: 12.8V
• Overvoltage protection (off/on): 15.5V / 15V
• Weight: 97 grams.