Mastervolt Mass Sine 24/5000 24V Pure Sine Wave Inverter

Mastervolt Mass Sine 24/5000 Pure Sine Wave Marine Inverter (24V / 5000W)

The Mastervolt Mass Sine 24/5000 is a switch-mode pure sine wave inverter engineered specifically for demanding commercial marine, offshore, and technical vehicle electrical systems. Operating from a nominal 24 VDC battery bank, it outputs clean, grid-quality 230 VAC (50 Hz or 60 Hz field-selectable/model-specific) with less than 5% total harmonic distortion (THD).

Featuring High-Frequency (HF) switch-mode topology, the unit avoids bulky low-frequency transformer noise, minimizes magnetic losses, and maintains full power delivery at ambient engine room/technical space temperatures up to 40 °C (104 °F). With an integrated surge envelope delivering up to 9000 W peak, it effortlessly starts inductive loads like air conditioning compressors, watermakers, hydraulic power packs, and heavy galley refrigeration without voltage sag or nuisance trips.

Model Details:

• Condition: New with Original Manufacturer Packaging
• Manufacturer Part Number (MPN / Product Code): 24095100 (230V / 50Hz) | 24095105 / 24095106 (230V / 60Hz variants)
• Part Number Cross-References: MV-24095100, MST-24095100, 24/5000-230V
• Lead Time & Shipping: In stock for immediate dispatch. Dispatched within 24–48 hours via insured freight.

Features

1. Heavy-Duty Continuous Output: Delivers a true 4000 W continuous rating (cos phi 1) and up to 5000 W P30 duty cycle at 40 °C ambient without thermal throttling.
2. 9000 W Inductive Surge Handling: Capable of withstanding a 9000 W short-duration startup peak, powering heavy electric motors, pumps, and compressors without inverter collapse.
3. HF Switch-Mode Efficiency (92%): Eliminates mechanical coil hum and acoustic vibration while reducing idle power draw down to 250 mA (6 W) in ON mode and 50 mA (1.2 W) in automatic Energy Saving Mode.
4. MasterBus Digital Integration: Supports MasterBus network communications via optional MasterBus Inverter Interface or MasterView / EasyView 5 displays for centralized remote telemetry and alarm logging.
5. Full Marine Protections: Integrated galvanic isolation, short-circuit protection, reverse polarity protection via external fuses, high/low DC over-voltage cut-offs, and multi-stage active thermal management.

Technical Details

Applications

• Commercial Marine Vessels: Tugs, crew-transfer vessels (CTV), pilot boats, fishing vessels, and passenger ferries requiring non-stop auxiliary AC power without running generators 24/7.
• Blue-Water Cruising Yachts & Mega Yachts: Clean power for navigation bridges, marine radar, SAT-COM domes, sonar networks, watermakers, and high-spec audiovisual systems.
• Heavy Emergency & Technical Vehicles: Mobile command centers, fire engines, emergency ambulances, and broadcast telemetry vans requiring zero AC line interference.
• Offshore Platforms & Navigational Aids: Remote buoys, lighthouse power skids, and uncrewed offshore monitoring installations coupled with 24 VDC solar/battery systems.

Compatibility

• Remote Panels: Mastervolt C4-RI Remote Control Panel, EasyView 5 Display via MasterBus.
• Network Interfaces: Mastervolt MasterBus Inverter Interface (Part # 77030700), Mastervolt USB Interface.
• Automatic Transfer Switches: Mastervolt Masterswitch 16A/25A or Mastervolt Systemswitch 230V for automatic grid/genset/inverter transfer.
• Battery Chemistries: Fully compatible with Mastervolt MLI Ultra Lithium-Ion (LiFePO4) systems, AGM deep cycle, Gel traction batteries, and wet lead-acid banks (with external charging managed by Mastervolt ChargeMaster/Mass chargers).

Frequently Asked Questions

What size battery bank is required to run the Mastervolt Mass Sine 24/5000?

Mastervolt recommends a minimum battery capacity of 400 Ah at 24 V. To run sustained heavy loads near 4000 W continuously, an 800 Ah 24 V AGM bank or a 400–600 Ah 24 V Lithium Iron Phosphate (LiFePO4) bank is recommended to prevent excessive discharge C-rates and early low-voltage cutoff.

Can the Mass Sine 24/5000 start an air conditioner compressor?

Yes. With a 9000 W peak surge capability, this inverter delivers over 200% of its rated capacity to absorb the high locked-rotor inductive start currents (LRA) demanded by marine scroll or rotary AC compressors up to 24,000 BTU.

What is the difference between the Mastervolt Mass Sine and Mass Sine Ultra?

The standard Mass Sine series is a dedicated, rugged standalone pure sine wave inverter using proven high-frequency switch-mode circuitry. The Mass Sine Ultra series introduces parallel and 3-phase synchronization capabilities (up to multi-unit parallel clusters). If single-chassis simplicity and high reliability are required without multi-inverter stacking, the standard Mass Sine 24/5000 is the industry benchmark.

Can this inverter charge my 24 V battery bank when shore power is connected?

No. The Mass Sine 24/5000 is a dedicated DC-to-AC pure sine wave inverter. It does not contain an internal AC-to-DC battery charger. It is designed to be paired with a dedicated marine battery charger (such as the Mastervolt Mass 24/100) or an external solar/alternator charging system, providing isolated power resilience.