Autotransformer 120/240 V — autotransformer, 32–100 A
Country: Netherlands · Model: Autotransformer 120/240
A marine autotransformer for 120/240 V rated 32 or 100 A for 60 Hz networks. It matches 120 and 240 V onboard networks, for example when a boat plugs into shore power of a different voltage in American marinas.
- Voltage
- 120 V / 240 V
- Frequency
- 60 Hz
- Current
- 32 A and 100 A
- Cooling
- forced air with thermal control
Technical specifications
| Voltage | 120 V / 240 V |
|---|---|
| Frequency | 60 Hz |
| Current | 32 A and 100 A |
| Cooling | forced air with thermal control |
| Transformer class | F (100 K) |
| Customs codes (for reference) | |
| HS code | 8504.3 |
| UKTZED code (Ukraine) | 8504318000 (dry ≤1 kVA); 8504320090 (dry 1–16 kVA); 8504330090 (dry 16–500 kVA); 8504340000 (dry >500 kVA) |
| CN code (EU) | 85043180 (dry ≤1 kVA); 85043200 (dry 1–16 kVA); 85043300 (dry 16–500 kVA); 85043400 (dry >500 kVA) |
Replacement for
isolating OSM1, TSZI; OSM1-2.5…4 kVA; no specialised analogue for ship shore power
selected by purpose and main parameters, please confirm with the manager
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
The unit uses an autotransformer circuit in which one winding serves both sides, so it is smaller and lighter than an isolation transformer of the same rating. There is no galvanic isolation between the 120 and 240 V sides. Cooling is forced air with a temperature-controlled fan that starts as the unit heats up. The transformer is class F with a 100 K temperature rise, so the mounting place must leave free airflow to the fan. Protecting the hull from galvanic corrosion on shore power takes an isolation transformer, which this autotransformer is not. Input cables and the protective breaker are sized for the chosen version, 32 or 100 A.
How to choose
Choose the version by the current of the shore line and the onboard panel, 32 A for a typical pedestal and 100 A for the full shore supply of a large vessel. The rated frequency is 60 Hz, so the unit belongs in US-standard networks. If a few 120 V loads can run from batteries, the 120 V 60 Hz version of the WPC inverter is the simpler route. When corrosion protection at the dock matters, an isolation transformer is needed instead of the autotransformer or alongside it.
Request a price and lead time
Autotransformer 120/240 V — autotransformer, 32–100 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What current ratings does the 120/240 V autotransformer come in?
It comes in 32 A and 100 A versions.
What frequency is the 120/240 V autotransformer rated for?
For 60 Hz.
What thermal class is the autotransformer?
Class F with a 100 K temperature rise.
Does the 120/240 V autotransformer protect the hull from galvanic corrosion?
No, there is no galvanic isolation between the sides. That job calls for an isolation transformer.
How is the 120/240 V 100 A autotransformer cooled?
By forced air, with the fan switched by winding temperature. The mounting space must be ventilated.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.