- Product description
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New Model 3361 (successor to Model 3326)
Changes:
- New CI-BUS/LIN interface
- Partially revised LiFePO4 charging characteristics:
- 13.2 V (storage)
- 14.4 V (heated)
- 14.2 V (heated)
- 14.4 V
- 14.2 V
- A temperature sensor is no longer essential for heated battery types.
High charging power even on short journeys, and a full charge on longer journeys.
- Increases or decreases the voltage to the required level in order to precisely charge the on-board battery using the optimum charging curve.
- Fully compensates for line losses and voltage fluctuations from the dynamo, such as those that regularly occur in Euro 6 vehicles with intelligent dynamos.
- Compact design, low weight thanks to high-frequency switch-mode technology and generously dimensioned power components for safe operation.
- Significantly improved energy balance of the on-board battery without interfering with the starter circuit.
- Connected 12 V loads are protected against overvoltage and voltage fluctuations.
- The charging voltage is free from voltage spikes and regulated in such a way as to prevent the batteries from being overcharged.
- Fully automatic operation: The unit remains permanently connected to the batteries and is automatically activated by the vehicle’s running dynamo. The batteries are not discharged when the engine is switched off.
- Parallel and buffer operation: When power is being drawn simultaneously, the battery continues to be charged or is maintained at full charge. The required charging times are automatically calculated and monitored.
- Monitoring-free charging: Multiple safeguards against overload, overheating, overvoltage, short circuits, incorrect operation and battery reverse discharge, achieved through electronic cut-off up to and including complete disconnection of the unit from the battery.
- Built-in on-board power supply filter: Trouble-free parallel operation with other charging sources such as EBL, chargers, engine and fuel generators or solar systems connected to the same battery.
- Charging cable compensation: Voltage losses across the charging cables are automatically compensated for.
- Connector for battery temperature sensor included: For lead-acid batteries such as flooded, gel and AGM batteries, the charging voltage is automatically adjusted to the battery temperature. At low temperatures, this enables a better full charge, whilst at high temperatures it prevents unnecessary battery gassing.
- LiFePO4 batteries: Battery protection at high and, in particular, low temperatures below 0 °C.
- Charging aid for deeply discharged lead-acid batteries: Gentle pre-charging of lead-acid, gel and AGM batteries down to 8 V, followed by powerful support for the battery should any loads still be switched on.
Charging programmes
1 “Gel”: Charging programme for gel batteries, characteristic curve IU1oU2oU3
Designed for sealed, gas-tight gel or Dryfit batteries with fixed electrolyte. These generally require a higher charging voltage and longer U1 hold times to ensure short charging times, high capacity retention and to prevent long-term battery ‘starvation’.
2 “AGM”: Charging programme for AGM/fleece batteries, characteristic curve IU1oU2oU3
Designed for charging sealed, gas-tight AGM batteries using lead-fibre technology. These require a particularly high U1 level with optimised hold times for full charging, followed by a moderate U2 level for trickle charging. Suitable for plate and tubular cell technology.
4 “UNIVERSAL”: Charging programme for lead-acid, wet and AGM batteries, IU1oU2oU3 characteristic curve
Universal programme for charging and maintaining the charge of lead-acid batteries in vehicles used in a mix of mobile and stationary applications. The medium U1 level enables short charging times, a good charge factor and good acid mixing in open and sealed, low-maintenance or maintenance-free standard, traction, lighting, solar and heavy-duty batteries, as well as AGM batteries with a standard U1 level.
Li “LiFePO4”: Charging programme for lithium batteries, IU1oU2oU3 characteristic curve
Designed for lithium LiFePO4 batteries with their own battery management system and specified or integrated protection circuitry.
Technical data
| Input from vehicle starter battery “+ IN Start” | |
| Vehicle starter battery, nominal voltage | 12 V |
| Battery capacity, minimum recommended | 60 Ah |
| Input voltage range, EURO 6+, D+-controlled | 10.5–16.5 V |
| Input overvoltage cut-off, EURO 6+, maximum | 16.5 V |
| Power consumption, maximum | 760 W |
| Current draw at lowest input voltage, maximum | 0.1–68 A |
| Limited current draw, three ‘IN Limit’ switch positions | 49 A, 42 A, 33 A |
| Auxiliary charging circuit for charging and maintaining the 12 V starter battery | |
| During external mains charging, switch position ‘B’ | 0–3 A |
| Activation control input ‘D+’ from D+, terminal 15 or ignition | 8–16.5 V |
| IN ‘Start’ voltage sensor lines ‘Vs-’ and ‘Vs+’ | Yes / Yes |
| Switching output “TR”, signal for bypass relay, maximum | 12 V / 1 A |
| Charging output to on-board supply battery “+ OUT On-board” | |
| Charging, buffer and load current, regulated IU1oU2, lead-acid and LiFePO4 | 0–50 A |
| Reduction when switch is set to ‘OUT Limit’ | 0–39 A |
| Lead-acid, gel and AGM batteries | |
| Nominal voltage | 12 V |
| Capacity, recommended / maximum | 75–320 Ah / 440 Ah |
| Stored lead-acid charging programmes | 4 |
| Pre-charge current for a deeply discharged battery below 8 V, maximum | 25 A |
| Safety charging voltage in the event of battery overtemperature | 12.80 V |
| LiFePO4 batteries | |
| Nominal voltage | 12 V (12.8–13.3 V) |
| Capacity, recommended / maximum | 75–320 Ah / 440 Ah |
| Stored LiFePO4 charging programmes | 4 |
| Safety charging voltage in the event of battery overheating | 12.80 V |
| ‘T T’ input for ‘on-board’ battery temperature sensor | Yes |
| OUT ‘on-board’ voltage sensor leads ‘Vb-’ and ‘Vb+’ | Yes / Yes |
| Quiescent current in standby mode | 16 mA |
| Charging timer | 3-stage |
| Voltage ripple | < 30 mV RMS |
| ‘+ OUT Board’ charging voltage limit to protect the loads | 15.00 V |
| External overvoltage cut-off ‘+ OUT board’ after 20 seconds | 15.50 V |
| Short-circuit, reverse discharge and safety protection | Yes |
| Mounting position | Any |
| Temperature range | -20 to +45 °C |
| Speed-controlled and temperature-controlled fan | Yes |
| Gradual reduction of charging power in the event of overheating | Yes |
| Safety shut-off in the event of overheating | Yes |
| Dimensions including mounting flanges and terminals (L × W × H) | 135 × 160 × 72 mm |
| Weight | 950 g |
| Operating conditions | Maximum 95% relative humidity, non-condensing |
| Contents | Temperature sensor and user manual |
Safety and warning notices
Notes:
- The device must only be installed, connected and operated by authorised and qualified specialist personnel.
- Before connecting the device or carrying out any work on it, all power supplies must be switched off and secured against accidental re-energisation.
- Installation must be carried out in accordance with the applicable electrical regulations and the manufacturer’s specifications.
- The starter battery and the on-board battery must not be connected directly to each other outside the designated device connections.
- The unit must be protected from moisture, water, condensation and direct exposure to heat.
- Sufficient ventilation must be ensured at the installation site. Ventilation openings and the fan must not be obstructed.
- Before commissioning, the battery type used, the charging characteristic curve and all relevant battery parameters must be set correctly.
- Incorrectly selected charging parameters may cause damage to the battery, the unit or connected loads.
- Only adequately sized, suitable and correctly fused cables, wires and connections must be used.
- Cables must be laid short, free from tension, protected against chafing and with a suitable cross-section.
- Damaged devices, cables, connections or fuses must not be used any further.
- In the event of unusual heat build-up, odours, noises, smoke or error messages, the device must be taken out of service immediately.
- Repairs must only be carried out by the manufacturer or an authorised specialist workshop.
Manufacturer’s contact details
Manufacturer:
VOTRONIC Elektronik-Systeme GmbH
Johann-Friedrich-Diehm-Str. 2
36341 Lauterbach
Germany
https://www.votronic.de/kontakt/