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Undervoltage protection for on-board and starter battery
The VOTRONIC Battery Protector 40 and Battery Protector 100 devices are connected between the supply battery and the consumer and are suitable for all lead-acid battery types (acid, gel, AGM) and makes. They protect the battery from dangerous deep discharging and the consumers and equipment from undervoltage and overvoltage and, controlled by an external switch, can also be used as a remote-controlled battery main switch.
- Switching current 40 A, briefly overloadable up to 60 A, externally visible switching status display
- EMERGENCY-ON function via switch on the device, can also be operated remotely via external switch
- Automatic reset as soon as the battery voltage returns to the normal range (charging)
- Separate sensor cable and switching thresholds with hysteresis and timer functions for trouble-free operation
- Bistable power relay, very low power consumption, less than 3 mA (according to EN 13976)
- No self-consumption when switching off via external switch, e.g. remote control as battery main switch
- Solid screw terminals for battery and load cable cross-sections up to 10 mm²
- "Motor" version with higher switch-off thresholds maintains the starting capability of emergency vehicles with only one battery circuit in accordance with DIN EN 1789
Technical data
| Device type | Type No. | Operating Voltage [V] | Switching current continuous/short [A] | Switching threshold Undervoltage [V] | Reset point Undervoltage [V] | Over- voltage OFF/ON [V] | Weight [g] |
| Battery Protector 40 Motor | 3073 | 12 | 40 / 60 | 11,8 | 12,8 | 16,0 / 15,0 | 97 |
| Temperature range: | -20 / +50°C | ||||||
| Dimensions (W x H x D) | 90 x 38 x 60 mm (incl. mounting flanges, without connections) | ||||||
| Test mark: | CE, E-test (EMC/vehicle directive) | ||||||
| Scope of delivery | Operating instructions |
Safety instructions and warnings
Safety instructions for Votronic Battery Protector, battery monitor 40 A, motor:
- Only use the product in accordance with the manufacturer's instructions and safety instructions.
- Ensure that the product is properly installed and connected to ensure safe use.
- Observe the specified maximum current carrying capacity of 40 A and do not exceed it.
- Ensure that the product is protected from moisture and direct sunlight.
- Keep the product away from children and pets to avoid injury.
- Check the condition of the product regularly and replace it if there are signs of damage or wear.
- Observe the applicable safety regulations and standards for operating the product.
- Stop using the product immediately if there are any malfunctions or problems and contact the manufacturer or authorised specialist personnel.
- Store the product in a safe place and protect it from impact or damage.
- Dispose of the product in accordance with the local guidelines and regulations for electrical appliances.
Manufacturer Contact information
Manufacturer Contact
VOTRONIC Elektronik-Systeme GmbH
Johann-Friedrich-Diehm-Str. 2
36341 Lauterbach
https://www.votronic.de/kontakt/