€ 576,71
1-2 weeks delivery time
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The Mastervolt Masterswitch 3kW (55106000) is a compact and automatic AC transfer switch that connects two independent 120V power sources—such as shore power and a generator—to a single AC output group. Rated for 25 A per input and supporting up to 3,000 W, it ensures fast and seamless switching within 12–22 ms. Featuring IP55 protection, adjustable generator delay (0–10 sec), and wide operating temperature range, it is ideal for marine and mobile power systems requiring reliable and silent AC source management.
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Mastervolt 55106000 - Masterswitch 3kW – 2x In, 1 Output (Automatic AC Transfer Switch, 120V, 25A)
The Mastervolt Masterswitch 3kW (part number 55106000) is a versatile automatic AC transfer switch designed for systems that use two power sources—typically grid (shore) power and a generator. It automatically selects the active power input and routes it to a single output line, ensuring seamless transitions and uninterrupted power supply. Compact and robust, the unit is suitable for marine, RV, and off-grid applications where dependable AC switching is required.
Key Features
- Supports two 120V AC inputs and one output
- Automatic source selection based on input presence
- 25 A nominal current per input (grid and generator)
- Transfer time: 12–22 ms (on), 4–19 ms (off)
- Adjustable generator delay: 0–10 seconds
- Designed for systems up to 3 kW (120V AC)
- Compact enclosure with IP55 protection rating
- No need for external control modules – fully automatic
Technical Specifications
Part Number 55106000 Nominal Input Voltage 120 V AC (50/60 Hz) Input Voltage Range 100–125 V Number of Inputs 2 (e.g. generator + grid) Number of Outputs 1 Nominal Input Current (each source) 25 A Generator Delay 0–10 seconds (adjustable) Transfer Time 12–22 ms (on), 4–19 ms (off) Power Consumption (active) 7 W Power Consumption (inverter only) 0 W Remote Control Compatible No LED Status Indication No MasterBus Compatible No Protection Class IP55 Temperature Range (Operating) -5 °C to +60 °C Temperature Range (Ambient) -25 °C to +70 °C Temperature Range (Storage) -60 °C to +80 °C Relative Humidity Max. 95%, non-condensing Cable Size Supported 0.5–10 mm² / AWG 20–7 Dimensions (H x W x D) 200 x 110 x 115 mm Dimensions (inch) 7.9 x 4.3 x 4.5 inch Weight 1.2 kg (2.6 lb)
Applications
- Marine AC systems requiring automatic switchover between shore and generator power
- Mobile/RV installations using grid and auxiliary power sources
- Off-grid setups needing reliable AC power routing
- Compact power panels and space-limited installations
Installation Notes
- Install in dry, ventilated locations with IP55 compliance
- Requires appropriate circuit protection depending on system configuration
- Fused versions with circuit breakers are available separately
Documents
Masterswitch 3 kW (120 V) - User Manual Size: 281 Kb -
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