Victron Energy CMP241220000 MultiPlus C 24/1200/25-16 Inverter Battery Charger
Victron Energy MultiPlus C 24/1200/25-16 Inverter Charger
Inverter, charger, and PowerAssist all-in-one 24V power management for off-grid, marine, and backup installations
The Victron Energy MultiPlus C 24/1200/25-16 (CMP241220000) is a compact, professional-grade inverter and battery charger built around a 24V nominal battery bank. It delivers 1000W continuous 230VAC inverter output at 25°C (900W at 40°C), 25A three-stage battery charging, and the full suite of Victron's PowerControl and PowerAssist technologies all in a single unit designed for caravans, marine installations, off-grid cabins, and backup power systems across Australia.
Like the rest of the MultiPlus C range, this unit functions as a true uninterruptible power supply: should shore or generator power drop out, it transfers to battery-backed inverter output in under 20 milliseconds seamlessly enough that computers, CPAP machines, and sensitive electronics keep running without a hiccup. The 24V platform suits larger battery banks and longer cable runs than equivalent 12V systems, making it a practical choice for serious off-grid builds, larger vessels, and commercial backup installations where a 24V architecture is already in place.
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: 19–33V DC (24V 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: 28.8V DC
- Float charge voltage: 27.6V DC
- Storage mode voltage: 26.4V DC
- House battery charge current: 25A (adjustable to 25A max)
- 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: Shore or generator power lost? The MultiPlus C responds in under 20 milliseconds, switching connected loads to battery-backed inverter output before sensitive electronics even notice. Computers, medical devices, refrigeration controllers, and navigation systems all continue running without interruption critical for vessels, off-grid cabins, and backup power applications.
- PowerControl intelligent load management: Set a maximum input current limit via the Multi Control Panel, and the MultiPlus C takes over from there. It monitors all AC loads in real time, calculates available headroom, and allocates spare capacity to battery charging preventing a small generator or limited shore supply from being tripped by simultaneous loads.
- PowerAssist peak power on demand: When loads momentarily exceed what the shore or generator connection can supply, the MultiPlus C instantly draws from the battery to cover the shortfall. Once the demand drops, charging resumes. A compact generator can now run loads it couldn't support alone a practical advantage in caravans, boats, and remote installations with limited generation capacity.
- 24V platform advantage: A 24V nominal system allows smaller cable cross-sections for equivalent power transfer compared to 12V, reducing installation cost and voltage drop over longer runs. It also suits larger battery banks more efficiently making the CMP241220000 a strong choice for serious off-grid builds and larger vessels already running 24V architectures.
- Dual AC outputs: The primary output delivers no-break UPS power to all connected loads. The second output is live only when AC input is present, allowing high-draw loads that shouldn't run from battery water heaters, air conditioners, battery-hungry appliances to be wired separately and automatically shed when shore or generator power is unavailable.
- 25A three-stage battery charger: Full absorption (28.8V), float (27.6V), and storage (26.4V) charge stages protect 24V battery health and maximise cycle life. A separate 4A output simultaneously maintains a starter battery. Charge current is adjustable to match your generator's capacity and battery bank size.
- Battery temperature sensor included: Automatically compensates charge voltage for ambient temperature preventing overcharge in hot Australian summers and undercharge in cold conditions without any manual adjustment.
- Parallel operation up to 6 units: Stack up to 6 MultiPlus C units in parallel for higher output and charging capacity. Three matched units can also be configured for three-phase output, with up to 6 three-unit sets paralleled for very large systems.
- Solar and grid-interactive capable: Supports off-grid PV, 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: AES mode reduces zero-load draw to 5–8W; Search mode drops it to 2–3W. Both modes significantly extend battery runtime in lightly loaded or standby installations valuable for full-time liveaboards and remote off-grid sites.
- Full Victron monitoring ecosystem compatibility: Works with Battery Monitor, Multi Control Panel, Color Control GX, Cerbo GX, and the free Victron VRM remote monitoring portal. Bluetooth Smart, USB, RS232, and Ethernet connectivity options available via compatible accessories.
- DIP switch configuration for stand-alone use: Basic settings adjusted in minutes without software. Parallel and three-phase configurations use VE.Bus Quick Configure or VE.Bus System Configurator software.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | CMP241220000 |
| Brand | Victron Energy |
| Model | MultiPlus C 24/1200/25-16 |
| Battery Input Voltage Range | 19–33V DC |
| Nominal Battery Voltage | 24V |
| 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 | 28.8V DC |
| Float Charge Voltage | 27.6V DC |
| Storage Mode Voltage | 26.4V DC |
| House Battery Charge Current | 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
- 24V 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 24V keep running during a power outage without interrupting connected loads?
Yes. The MultiPlus C transfers to battery-backed inverter output in under 20 milliseconds when shore or generator power is lost fast enough that computers, CPAP machines, and sensitive electronics continue operating without interruption.
What is the difference between the 12V and 24V MultiPlus C models?
The 24V model (CMP241220000) operates from a 24V battery bank, which suits longer cable runs and larger battery banks more efficiently than a 12V system. Charge voltages differ accordingly absorption at 28.8V, float at 27.6V but inverter output, power ratings, and features are otherwise identical to the 12V equivalent.
Can PowerAssist allow a small generator to run loads it couldn't otherwise handle?
Yes. When loads briefly exceed generator capacity, PowerAssist draws from the battery to cover the shortfall instantly. Once the load drops, the generator resumes charging. A smaller, lighter generator can run the same peak loads that would otherwise trip it a significant practical benefit for caravans and vessels with limited generation capacity.
Can multiple units be paralleled for more output power?
Yes. Up to 6 MultiPlus C units can be operated in parallel for higher inverter 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 24/1200/25-16 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 24/1200/25-16 Inverter Charger
Inverter, charger, and PowerAssist all-in-one 24V power management for off-grid, marine, and backup installations
The Victron Energy MultiPlus C 24/1200/25-16 (CMP241220000) is a compact, professional-grade inverter and battery charger built around a 24V nominal battery bank. It delivers 1000W continuous 230VAC inverter output at 25°C (900W at 40°C), 25A three-stage battery charging, and the full suite of Victron's PowerControl and PowerAssist technologies all in a single unit designed for caravans, marine installations, off-grid cabins, and backup power systems across Australia.
Like the rest of the MultiPlus C range, this unit functions as a true uninterruptible power supply: should shore or generator power drop out, it transfers to battery-backed inverter output in under 20 milliseconds seamlessly enough that computers, CPAP machines, and sensitive electronics keep running without a hiccup. The 24V platform suits larger battery banks and longer cable runs than equivalent 12V systems, making it a practical choice for serious off-grid builds, larger vessels, and commercial backup installations where a 24V architecture is already in place.
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: 19–33V DC (24V 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: 28.8V DC
- Float charge voltage: 27.6V DC
- Storage mode voltage: 26.4V DC
- House battery charge current: 25A (adjustable to 25A max)
- 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: Shore or generator power lost? The MultiPlus C responds in under 20 milliseconds, switching connected loads to battery-backed inverter output before sensitive electronics even notice. Computers, medical devices, refrigeration controllers, and navigation systems all continue running without interruption critical for vessels, off-grid cabins, and backup power applications.
- PowerControl intelligent load management: Set a maximum input current limit via the Multi Control Panel, and the MultiPlus C takes over from there. It monitors all AC loads in real time, calculates available headroom, and allocates spare capacity to battery charging preventing a small generator or limited shore supply from being tripped by simultaneous loads.
- PowerAssist peak power on demand: When loads momentarily exceed what the shore or generator connection can supply, the MultiPlus C instantly draws from the battery to cover the shortfall. Once the demand drops, charging resumes. A compact generator can now run loads it couldn't support alone a practical advantage in caravans, boats, and remote installations with limited generation capacity.
- 24V platform advantage: A 24V nominal system allows smaller cable cross-sections for equivalent power transfer compared to 12V, reducing installation cost and voltage drop over longer runs. It also suits larger battery banks more efficiently making the CMP241220000 a strong choice for serious off-grid builds and larger vessels already running 24V architectures.
- Dual AC outputs: The primary output delivers no-break UPS power to all connected loads. The second output is live only when AC input is present, allowing high-draw loads that shouldn't run from battery water heaters, air conditioners, battery-hungry appliances to be wired separately and automatically shed when shore or generator power is unavailable.
- 25A three-stage battery charger: Full absorption (28.8V), float (27.6V), and storage (26.4V) charge stages protect 24V battery health and maximise cycle life. A separate 4A output simultaneously maintains a starter battery. Charge current is adjustable to match your generator's capacity and battery bank size.
- Battery temperature sensor included: Automatically compensates charge voltage for ambient temperature preventing overcharge in hot Australian summers and undercharge in cold conditions without any manual adjustment.
- Parallel operation up to 6 units: Stack up to 6 MultiPlus C units in parallel for higher output and charging capacity. Three matched units can also be configured for three-phase output, with up to 6 three-unit sets paralleled for very large systems.
- Solar and grid-interactive capable: Supports off-grid PV, 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: AES mode reduces zero-load draw to 5–8W; Search mode drops it to 2–3W. Both modes significantly extend battery runtime in lightly loaded or standby installations valuable for full-time liveaboards and remote off-grid sites.
- Full Victron monitoring ecosystem compatibility: Works with Battery Monitor, Multi Control Panel, Color Control GX, Cerbo GX, and the free Victron VRM remote monitoring portal. Bluetooth Smart, USB, RS232, and Ethernet connectivity options available via compatible accessories.
- DIP switch configuration for stand-alone use: Basic settings adjusted in minutes without software. Parallel and three-phase configurations use VE.Bus Quick Configure or VE.Bus System Configurator software.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | CMP241220000 |
| Brand | Victron Energy |
| Model | MultiPlus C 24/1200/25-16 |
| Battery Input Voltage Range | 19–33V DC |
| Nominal Battery Voltage | 24V |
| 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 | 28.8V DC |
| Float Charge Voltage | 27.6V DC |
| Storage Mode Voltage | 26.4V DC |
| House Battery Charge Current | 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
- 24V 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 24V keep running during a power outage without interrupting connected loads?
Yes. The MultiPlus C transfers to battery-backed inverter output in under 20 milliseconds when shore or generator power is lost fast enough that computers, CPAP machines, and sensitive electronics continue operating without interruption.
What is the difference between the 12V and 24V MultiPlus C models?
The 24V model (CMP241220000) operates from a 24V battery bank, which suits longer cable runs and larger battery banks more efficiently than a 12V system. Charge voltages differ accordingly absorption at 28.8V, float at 27.6V but inverter output, power ratings, and features are otherwise identical to the 12V equivalent.
Can PowerAssist allow a small generator to run loads it couldn't otherwise handle?
Yes. When loads briefly exceed generator capacity, PowerAssist draws from the battery to cover the shortfall instantly. Once the load drops, the generator resumes charging. A smaller, lighter generator can run the same peak loads that would otherwise trip it a significant practical benefit for caravans and vessels with limited generation capacity.
Can multiple units be paralleled for more output power?
Yes. Up to 6 MultiPlus C units can be operated in parallel for higher inverter 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 24/1200/25-16 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.
