Victron Energy Multiplus-II 12/4k/160-50 2x120v #PMP122405200

Victron Energy PMP122405200 Inverters Victron Energy MultiPlus-II 12/4000/160-50 2x120V inverter/charger with 3.4 kW continuous output, 6 kW peak power, a 160 A adaptive battery charger, and a 50 A transfer switch. The Victron MultiPlus-II 12/4000/160-50 combines a 2x120V inverter, high-output battery charger, and automatic transfer switch for marine, mobile, backup, and off-grid power systems. It delivers 3.4 kW of continuous inverter power at 25°C, supports demanding loads with 6 kW peak output, and provides up to 160 A of battery charging from an available AC source. PowerControl helps prevent shore power or a generator from being overloaded, while PowerAssist supplements limited incoming AC power with energy from the battery when load demand increases. KEY FEATURES Multifunction inverter, battery charger, and transfer switch 12V DC battery system compatibility 2x120V AC output at 60 Hz 3.4 kW continuous output at 25°C 4.0 kW time-limited output for up to 1 hour from a cold start 4.5 kW time-limited output for up to 30 minutes from a cold start 6 kW peak output for 2 seconds Maximum 160 A battery charging current 50 A automatic transfer switch PowerControl limits charging demand to help prevent AC source overload PowerAssist supplements shore, generator, or grid power with battery power Main AC output transfers to inverter power in less than 20 milliseconds Auxiliary AC output disconnects loads when external AC power is unavailable Four-stage adaptive charging with BatterySafe and storage modes VE.Bus support for system integration, monitoring, and multi-unit operation Remote on/off capability Programmable relay and two general-purpose communication ports Optional external 100 A AC current sensor support Configurable with VictronConnect or VEConfigure using an MK3-USB interface Remote monitoring support through compatible Victron GX equipment and the VRM Portal TECHNICAL SPECIFICATIONS Manufacturer part number: PMP122405200 Model: MultiPlus-II 12/4k/160-50 120V DC input voltage range: 9.5-17V Inverter output voltage: 120 VAC ±2% Output frequency: 60 Hz ±0.1% Continuous output at 25°C: 3.4 kW Continuous output at 40°C: 3.1 kW Continuous output at 65°C: 2.4 kW Peak output: 6 kW for 2 seconds Maximum efficiency: 93% Zero-load consumption: 18 W Zero-load consumption in AES mode: 11 W Zero-load consumption in Search mode: 4 W AC input voltage range: 90-140 VAC AC input frequency range: 55-65 Hz Maximum AC input current: 50 A Transfer switch rating: 50 A Maximum battery charge current: 160 A at 25°C Absorption voltage: 14.4V Float voltage: 13.8V Storage voltage: 13.2V Auxiliary AC output rating: 32 A Starter-battery maintenance charge output: 4 A Operating temperature range: -40°C to 65°C (-40°F to 150°F), fan-assisted cooling Maximum non-condensing humidity: 95% Enclosure material: Steel Color: Blue, RAL 5012 Protection category: IP21 Battery connections: 2 x 2 M8 bolts Recommended 120V AC conductor size: 6 AWG Weight: 49 lb (22 kg) Dimensions: 24.8 x 10.9 x 6.5 in. (631 x 277 x 164 mm) Listing: UL 458 APPLICATIONS Recreational vehicle electrical systems Marine house-power systems Work vehicles and specialty mobile equipment Generator-supported battery systems Shore-power installations Off-grid homes and cabins Backup power systems Solar and alternative-energy installations Energy storage systems Systems requiring uninterrupted power for computers or electronics IDEAL FOR Buyers needing a combined inverter, charger, and transfer switch 12V battery banks requiring high charging current Systems with limited shore-power or generator capacity Applications with brief high-starting-power loads Installations that need selected loads disabled during battery operation Expandable systems requiring parallel, split-phase, or three-phase capability Owners who want optional remote monitoring and system configuration PROTECTION FEATURES Output short-circuit protection Inverter overload protection High battery-voltage protection Low battery-voltage protection High-temperature protection Protection against 120 VAC being present on the inverter output Excessive input-voltage-ripple protection Bulk-charge time protection Automatic alarm and shutdown indications for overload, low battery, high temperature, and excessive DC ripple SYSTEM COMPATIBILITY Designed for nominal 12V battery banks Supports lead-acid charging with adaptive bulk, absorption, float, and storage stages Compatible with Victron Lithium Battery Smart systems when used with the required VE.Bus BMS V2 or Lynx Smart BMS Other lithium batteries require confirmed battery and BMS compatibility plus appropriate charger configuration Compatible with solar charge controllers and grid-tie inverters in supported system designs Up to six identical units may be connected in parallel Two identical units may be configured for 120/240V split-phase operation Three identical units may be configured for three-phase operation Compatible monitoring and control options include Cerbo GX, Ekrano GX, Digital Multi Control, VE.Bus Smart Dongle, MK3-USB, VictronConnect, VEConfigure, and VRM Optional 100 A external current sensor can be used for grid-parallel PowerControl and PowerAssist applications CHECK BEFORE ORDERING Confirm the system uses a nominal 12V battery bank; this model is not for 24V or 48V battery systems. Confirm the required AC output is 120V at 60 Hz. Verify that 3.4 kW continuous output is sufficient for the combined running loads. Check motor, compressor, pump, and air-conditioning startup requirements against the 6 kW peak rating. Use an adequately sized battery bank; the manual recommends 400-1200 Ah for this model. The recommended DC fuse is 600 A. Battery-cable recommendations are two 2/0 AWG conductors per positive and negative connection for runs up to 5 m, or two 4/0 AWG conductors for runs from 5-10 m. AC input and main-output circuits are rated for 50 A and require properly sized overcurrent protection and 90°C copper conductors. The auxiliary output is limited to 32 A and turns off during inverter-only operation. Allow adequate space for cooling and maintain at least 10 cm of clearance around units used in parallel installations. Install in a dry, well-ventilated location near the battery bank. Parallel and multi-phase systems require identical units, equal-length DC cables, VE.Bus cabling, and system configuration. An MK3-USB interface and RJ45 UTP cable are required for direct computer configuration. Confirm battery chemistry, charging voltages, BMS requirements, and temperature-sensor needs before commissioning. Normalized SKU: PMP122405200