Victron Energy CMP121220000 MultiPlus C 12/1200/50-16 Inverter Battery Charger
Victron Energy MultiPlus C 12/1200/50-16 Inverter Charger
Inverter, charger, and PowerAssist one compact unit that keeps your 12V system running no matter what
The Victron Energy MultiPlus C 12/1200/50-16 (CMP121220000) is a compact, all-in-one inverter and battery charger designed for 12V systems requiring reliable 230VAC output, intelligent battery charging, and seamless transfer between shore, generator, and battery power. Delivering 1000W continuous inverter output at 25°C (900W at 40°C) and 50A battery charging, it brings together everything a caravan, marine, off-grid cabin, or backup power installation needs in a single, professionally engineered unit.
At its core, the MultiPlus C is a true uninterruptible power supply: when grid or shore power is lost, it switches to battery-backed inverter output in less than 20 milliseconds fast enough that computers, medical equipment, and sensitive electronics continue operating without interruption. Add PowerControl for smart load management and PowerAssist for peak power boosting, and the MultiPlus C becomes an intelligent power hub that maximises what your generator or shore connection can do rather than just supplementing it. Suitable for stand-alone off-grid use, grid-interactive solar systems, and backup power applications across Australia.
Important: This product must be installed by a licensed electrician. It involves mains AC voltages and connection to shore power, generator, or grid supply.
Key Specifications
- Battery input voltage range: 9.5–17V DC (12V nominal)
- Inverter output: 230VAC ±2%, 50Hz ±0.1%
- Continuous inverter output at 25°C: 1200VA / 1000W
- Continuous inverter output at 40°C: 900W
- Continuous inverter output at 65°C: 600W
- Peak inverter power: 2400W
- Maximum inverter efficiency: 93–94%
- Zero load power (standard / AES mode / Search mode): 8–10W / 5–8W / 2–3W
- Charger AC input voltage range: 187–265VAC
- Charger AC input frequency: 45–65Hz
- Charger power factor: 1
- Absorption charge voltage: 14.4V DC
- Float charge voltage: 13.8V DC
- Storage mode voltage: 13.2V DC
- House battery charge current: 50A (adjustable to 25A)
- Starter battery charge current: 4A
- Battery temperature sensor: Included
- Transfer time (grid to inverter): less than 20 milliseconds
Features & Benefits
- Under 20ms transfer to inverter true UPS performance: The MultiPlus C switches from shore or generator to battery-backed inverter output in less than 20 milliseconds. Computers, NAS devices, CPAP machines, and sensitive control electronics continue running without so much as a flicker a critical capability for off-grid cabins, boats, and backup power systems where an interruption causes real problems.
- PowerControl smart load management: Set a maximum input current limit via the Multi Control Panel and the MultiPlus C does the rest. It monitors all AC loads, calculates the available headroom, and uses any remaining capacity to charge the batteries ensuring your generator or shore supply is never overloaded, even as loads change throughout the day.
- PowerAssist peak power boosting: When loads briefly exceed what the shore or generator connection can deliver, the MultiPlus C draws from the battery to make up the difference instantly. When the load drops back, it seamlessly returns to charging. The result: a smaller, lighter generator runs the same loads it couldn't handle alone a game changer for caravans and vessels with limited shore current.
- Dual AC outputs: The primary output provides no-break UPS-style power to connected loads. A second output (live only when AC input is present) lets you connect loads that should not run from battery water heaters, air conditioners, high-draw appliances preventing unnecessary battery discharge when shore or generator power isn't available.
- 50A intelligent battery charger three-stage A full-featured multi-stage charger with absorption (14.4V), float (13.8V), and storage (13.2V) modes protects battery health and maximises cycle life. Charge current is adjustable between 25A and 50A to suit generator capacity and battery bank size. An integrated 4A output maintains a separate starter battery simultaneously.
- Battery temperature sensor included: Adjusts charge voltage automatically based on battery temperature, preventing overcharge in hot Australian conditions and undercharge in cold weather extending battery life without any manual adjustment.
- Parallel operation up to 6 units: Where more inverter or charging capacity is needed, up to 6 MultiPlus units can be operated in parallel for significantly higher output. Three-phase output is also supported with three matched units scalable from a single caravan installation to a large off-grid or industrial system.
- Solar and grid-interactive capable: The MultiPlus C supports off-grid PV systems, grid-connected self-consumption, and grid-interactive applications via Victron's Assistant software framework. Loss-of-mains detection is available for compliant grid-tie configurations.
- AES and Search modes low standby consumption: Adaptive Energy Saver (AES) mode reduces zero-load power draw to 5–8W; Search mode drops it to 2–3W by periodically sampling for loads. Both modes extend battery runtime in lightly loaded or standby installations important for full-time liveaboards and off-grid sites.
- Comprehensive monitoring and remote access: Compatible with Victron's full monitoring ecosystem: Battery Monitor, Multi Control Panel, Color Control GX, Cerbo GX, and VRM (Victron Remote Management) portal for free remote data logging and control. Bluetooth Smart, USB, RS232, and Ethernet connectivity options available depending on accessories fitted.
- Simple DIP switch configuration for stand-alone use: Basic settings can be configured in minutes using DIP switches no laptop required for straightforward stand-alone applications. Parallel and three-phase configurations use VE.Bus Quick Configure or VE.Bus System Configurator software.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | CMP121220000 |
| Brand | Victron Energy |
| Model | MultiPlus C 12/1200/50-16 |
| Battery Input Voltage Range | 9.5–17V DC |
| Nominal Battery Voltage | 12V |
| Inverter Output Voltage | 230VAC ±2% |
| Inverter Output Frequency | 50Hz ±0.1% |
| Continuous Output Power (25°C) | 1200VA / 1000W |
| Continuous Output Power (40°C) | 900W |
| Continuous Output Power (65°C) | 600W |
| Peak Output Power | 2400W |
| Maximum Inverter Efficiency | 93–94% |
| Zero Load Power (Standard) | 8–10W |
| Zero Load Power (AES Mode) | 5–8W |
| Zero Load Power (Search Mode) | 2–3W |
| Transfer Time (Grid to Inverter) | <20ms |
| Charger AC Input Voltage Range | 187–265VAC |
| Charger AC Input Frequency | 45–65Hz |
| Charger Power Factor | 1 |
| Absorption Charge Voltage | 14.4V DC |
| Float Charge Voltage | 13.8V DC |
| Storage Mode Voltage | 13.2V DC |
| House Battery Charge Current | 50A (adjustable to 25A) |
| Starter Battery Charge Current | 4A |
| Battery Temperature Sensor | Included |
| AC Outputs | 2 (Output 1: no-break; Output 2: AC-present only) |
| Parallel Operation | Up to 6 units |
| Three Phase Capability | Yes (3 matched units required) |
| Installation Requirement | Licensed electrician required |
Compatible With
- 12V AGM, gel, and LiFePO4 battery banks (charge parameters may require adjustment for lithium confirm with Victron documentation)
- Victron SmartSolar MPPT charge controllers (off-grid and grid-interactive PV systems)
- Victron Color Control GX and Cerbo GX (system monitoring and control)
- Victron BMV battery monitors (state of charge tracking)
- Victron Multi Control Panel (input current limit adjustment, PowerControl)
- Victron VRM portal (free remote monitoring and data logging)
- Victron GX Touch 50/70 displays
- Parallel arrays of up to 6 matched MultiPlus C units (higher output capacity)
- Three-phase configurations using 3 matched MultiPlus C units
- Shore power connections, generator inputs, and grid-interactive solar systems
Frequently Asked Questions
Does the MultiPlus C keep running during a power outage without interrupting connected loads?
Yes. The MultiPlus C transfers to battery-backed inverter output in less than 20 milliseconds when shore or generator power is lost fast enough that computers, CPAP machines, and other sensitive electronics continue operating without interruption.
Can this unit manage shore power current limits to avoid tripping a breaker?
Yes. The PowerControl feature allows a maximum input current to be set. The MultiPlus C monitors all AC loads and uses any remaining headroom for battery charging automatically preventing the shore or generator supply from being overloaded as loads change.
What battery chemistries is the MultiPlus C compatible with?
The factory charge settings suit 12V lead-acid batteries (AGM and gel). LiFePO4 compatibility is possible but requires charge parameter adjustment and typically a compatible Victron BMS confirm against current Victron documentation before integrating with a lithium battery bank.
Can multiple MultiPlus C units be connected in parallel for more power?
Yes. Up to 6 units can be operated in parallel for higher inverter output and charging capacity. Three matched units can also be configured for three-phase output. Parallel and three-phase setups require VE.Bus configuration software and appropriate interconnect cabling.
Does this product require a licensed electrician for installation?
Yes. The MultiPlus C connects to mains AC voltages shore power, generator, or grid supply and must be installed by a licensed electrician in accordance with Australian electrical standards. Do not attempt self-installation.
Original: $1,168.20
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Description
Victron Energy MultiPlus C 12/1200/50-16 Inverter Charger
Inverter, charger, and PowerAssist one compact unit that keeps your 12V system running no matter what
The Victron Energy MultiPlus C 12/1200/50-16 (CMP121220000) is a compact, all-in-one inverter and battery charger designed for 12V systems requiring reliable 230VAC output, intelligent battery charging, and seamless transfer between shore, generator, and battery power. Delivering 1000W continuous inverter output at 25°C (900W at 40°C) and 50A battery charging, it brings together everything a caravan, marine, off-grid cabin, or backup power installation needs in a single, professionally engineered unit.
At its core, the MultiPlus C is a true uninterruptible power supply: when grid or shore power is lost, it switches to battery-backed inverter output in less than 20 milliseconds fast enough that computers, medical equipment, and sensitive electronics continue operating without interruption. Add PowerControl for smart load management and PowerAssist for peak power boosting, and the MultiPlus C becomes an intelligent power hub that maximises what your generator or shore connection can do rather than just supplementing it. Suitable for stand-alone off-grid use, grid-interactive solar systems, and backup power applications across Australia.
Important: This product must be installed by a licensed electrician. It involves mains AC voltages and connection to shore power, generator, or grid supply.
Key Specifications
- Battery input voltage range: 9.5–17V DC (12V nominal)
- Inverter output: 230VAC ±2%, 50Hz ±0.1%
- Continuous inverter output at 25°C: 1200VA / 1000W
- Continuous inverter output at 40°C: 900W
- Continuous inverter output at 65°C: 600W
- Peak inverter power: 2400W
- Maximum inverter efficiency: 93–94%
- Zero load power (standard / AES mode / Search mode): 8–10W / 5–8W / 2–3W
- Charger AC input voltage range: 187–265VAC
- Charger AC input frequency: 45–65Hz
- Charger power factor: 1
- Absorption charge voltage: 14.4V DC
- Float charge voltage: 13.8V DC
- Storage mode voltage: 13.2V DC
- House battery charge current: 50A (adjustable to 25A)
- Starter battery charge current: 4A
- Battery temperature sensor: Included
- Transfer time (grid to inverter): less than 20 milliseconds
Features & Benefits
- Under 20ms transfer to inverter true UPS performance: The MultiPlus C switches from shore or generator to battery-backed inverter output in less than 20 milliseconds. Computers, NAS devices, CPAP machines, and sensitive control electronics continue running without so much as a flicker a critical capability for off-grid cabins, boats, and backup power systems where an interruption causes real problems.
- PowerControl smart load management: Set a maximum input current limit via the Multi Control Panel and the MultiPlus C does the rest. It monitors all AC loads, calculates the available headroom, and uses any remaining capacity to charge the batteries ensuring your generator or shore supply is never overloaded, even as loads change throughout the day.
- PowerAssist peak power boosting: When loads briefly exceed what the shore or generator connection can deliver, the MultiPlus C draws from the battery to make up the difference instantly. When the load drops back, it seamlessly returns to charging. The result: a smaller, lighter generator runs the same loads it couldn't handle alone a game changer for caravans and vessels with limited shore current.
- Dual AC outputs: The primary output provides no-break UPS-style power to connected loads. A second output (live only when AC input is present) lets you connect loads that should not run from battery water heaters, air conditioners, high-draw appliances preventing unnecessary battery discharge when shore or generator power isn't available.
- 50A intelligent battery charger three-stage A full-featured multi-stage charger with absorption (14.4V), float (13.8V), and storage (13.2V) modes protects battery health and maximises cycle life. Charge current is adjustable between 25A and 50A to suit generator capacity and battery bank size. An integrated 4A output maintains a separate starter battery simultaneously.
- Battery temperature sensor included: Adjusts charge voltage automatically based on battery temperature, preventing overcharge in hot Australian conditions and undercharge in cold weather extending battery life without any manual adjustment.
- Parallel operation up to 6 units: Where more inverter or charging capacity is needed, up to 6 MultiPlus units can be operated in parallel for significantly higher output. Three-phase output is also supported with three matched units scalable from a single caravan installation to a large off-grid or industrial system.
- Solar and grid-interactive capable: The MultiPlus C supports off-grid PV systems, grid-connected self-consumption, and grid-interactive applications via Victron's Assistant software framework. Loss-of-mains detection is available for compliant grid-tie configurations.
- AES and Search modes low standby consumption: Adaptive Energy Saver (AES) mode reduces zero-load power draw to 5–8W; Search mode drops it to 2–3W by periodically sampling for loads. Both modes extend battery runtime in lightly loaded or standby installations important for full-time liveaboards and off-grid sites.
- Comprehensive monitoring and remote access: Compatible with Victron's full monitoring ecosystem: Battery Monitor, Multi Control Panel, Color Control GX, Cerbo GX, and VRM (Victron Remote Management) portal for free remote data logging and control. Bluetooth Smart, USB, RS232, and Ethernet connectivity options available depending on accessories fitted.
- Simple DIP switch configuration for stand-alone use: Basic settings can be configured in minutes using DIP switches no laptop required for straightforward stand-alone applications. Parallel and three-phase configurations use VE.Bus Quick Configure or VE.Bus System Configurator software.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | CMP121220000 |
| Brand | Victron Energy |
| Model | MultiPlus C 12/1200/50-16 |
| Battery Input Voltage Range | 9.5–17V DC |
| Nominal Battery Voltage | 12V |
| Inverter Output Voltage | 230VAC ±2% |
| Inverter Output Frequency | 50Hz ±0.1% |
| Continuous Output Power (25°C) | 1200VA / 1000W |
| Continuous Output Power (40°C) | 900W |
| Continuous Output Power (65°C) | 600W |
| Peak Output Power | 2400W |
| Maximum Inverter Efficiency | 93–94% |
| Zero Load Power (Standard) | 8–10W |
| Zero Load Power (AES Mode) | 5–8W |
| Zero Load Power (Search Mode) | 2–3W |
| Transfer Time (Grid to Inverter) | <20ms |
| Charger AC Input Voltage Range | 187–265VAC |
| Charger AC Input Frequency | 45–65Hz |
| Charger Power Factor | 1 |
| Absorption Charge Voltage | 14.4V DC |
| Float Charge Voltage | 13.8V DC |
| Storage Mode Voltage | 13.2V DC |
| House Battery Charge Current | 50A (adjustable to 25A) |
| Starter Battery Charge Current | 4A |
| Battery Temperature Sensor | Included |
| AC Outputs | 2 (Output 1: no-break; Output 2: AC-present only) |
| Parallel Operation | Up to 6 units |
| Three Phase Capability | Yes (3 matched units required) |
| Installation Requirement | Licensed electrician required |
Compatible With
- 12V AGM, gel, and LiFePO4 battery banks (charge parameters may require adjustment for lithium confirm with Victron documentation)
- Victron SmartSolar MPPT charge controllers (off-grid and grid-interactive PV systems)
- Victron Color Control GX and Cerbo GX (system monitoring and control)
- Victron BMV battery monitors (state of charge tracking)
- Victron Multi Control Panel (input current limit adjustment, PowerControl)
- Victron VRM portal (free remote monitoring and data logging)
- Victron GX Touch 50/70 displays
- Parallel arrays of up to 6 matched MultiPlus C units (higher output capacity)
- Three-phase configurations using 3 matched MultiPlus C units
- Shore power connections, generator inputs, and grid-interactive solar systems
Frequently Asked Questions
Does the MultiPlus C keep running during a power outage without interrupting connected loads?
Yes. The MultiPlus C transfers to battery-backed inverter output in less than 20 milliseconds when shore or generator power is lost fast enough that computers, CPAP machines, and other sensitive electronics continue operating without interruption.
Can this unit manage shore power current limits to avoid tripping a breaker?
Yes. The PowerControl feature allows a maximum input current to be set. The MultiPlus C monitors all AC loads and uses any remaining headroom for battery charging automatically preventing the shore or generator supply from being overloaded as loads change.
What battery chemistries is the MultiPlus C compatible with?
The factory charge settings suit 12V lead-acid batteries (AGM and gel). LiFePO4 compatibility is possible but requires charge parameter adjustment and typically a compatible Victron BMS confirm against current Victron documentation before integrating with a lithium battery bank.
Can multiple MultiPlus C units be connected in parallel for more power?
Yes. Up to 6 units can be operated in parallel for higher inverter output and charging capacity. Three matched units can also be configured for three-phase output. Parallel and three-phase setups require VE.Bus configuration software and appropriate interconnect cabling.
Does this product require a licensed electrician for installation?
Yes. The MultiPlus C connects to mains AC voltages shore power, generator, or grid supply and must be installed by a licensed electrician in accordance with Australian electrical standards. Do not attempt self-installation.
