Guide · Power and electrical safety
120 V vs 230 V aquarium equipment
How to spot a 230 V / 50 Hz pump or feeder before it reaches a North American outlet, why a plug adapter doesn't fix it, and what Canada asks you to check.
Short answer
Before you buy a mains-powered pump, feeder or timer, find the voltage and frequency for the exact item you are buying. North American gear is rated for 120 V / 60 Hz; several well-documented aquarium products are sold only as 230-240 V / 50 Hz versions. A plug adapter changes the plug shape, not the voltage, so it does not make a 230 V device safe on a 120 V outlet.
Where a wrong-voltage variant hides
Global brands sell different versions for different mains. The product name can be identical; the rating is not.
| Product | What the maker lists |
|---|---|
| Fluval A202 air pump | Item A853: 3 W on 120 V / 60 Hz; the 230-240 V / 50 Hz wattage is listed separately (3.8 W)[1] |
| Fluval A101 and A402 air pumps | Items A851 and A854, listed on 120 V / 60 Hz[1] |
| Sicce AIRLIGHT 1000, 1500, 3300 air pumps | All 230-240 V / 50 Hz; no 120 V / 60 Hz variant shown[2] |
| EHEIM air100, air200, air400 air pumps | 50 Hz ratings only on the page we read[3] |
| EHEIM autofeeder+ (Wi-Fi feeder) | Uses a power supply instead of batteries; the page we read gives no North American voltage, plug or certification[4] |
Fluval shows the pattern to look for: one model name, several item numbers, each with its own rating. Match the item number on the listing to the maker's 120 V item.
We do not recommend the Sicce AIRLIGHT, the EHEIM air pumps listed above or the EHEIM autofeeder+ for North American outlets, because their makers show no 120 V / 60 Hz version.
Battery units are different
A battery-only device has no mains rating to check. EHEIM's battery autofeeder manual says the unit is for private, indoor aquarium use and that its symbol shows conformity with EU standards;[5] that symbol tells you nothing about North American mains, but the base model doesn't plug in. Its mains-powered sibling, the autofeeder+, is a different case.[4]
A plug adapter is not a converter
A travel plug adapter lets a European plug fit a North American socket. It passes 120 V straight through, so a 230 V device gets about half the voltage it was designed for, and the frequency is still 60 Hz.
Health Canada says to check that chargers and adapters match the device's voltage and current, and warns that incompatible adapters can cause overheating or damage.[6] Its page is about chargers and travel adapters in general; applying it to aquarium pumps is our inference, but the principle is the same. Do not run a 230 V aquarium device on 120 V through an adapter.
What Canada asks you to check
Health Canada tells consumers not to buy plug-in electrical products without a Canadian certification mark such as CSA, cUL or cETL.[6] It also says the mark must appear on the product itself, not just the packaging, and that products bought from outside Canada may lack marks or not meet Canadian requirements.[6] That is a good habit in the US too: an imported variant may carry only marks for its home market.
How to check a listing
- Find the maker's item number for the 120 V / 60 Hz version.
- Match it to the item number on the listing, not just the product name.
- Check the rating label on the device when it arrives: voltage, frequency and a safety certification mark.
- If the label says 220-240 V or 50 Hz only, don't plug it in; return it.
Next
Questions
Can I use a 230 V air pump in the US with a plug adapter?
No. A plug adapter changes the plug shape, not the voltage. Health Canada warns that adapters that don't match a device's voltage and current can cause overheating or damage.[6]
What rating should North American aquarium gear show?
120 V at 60 Hz, or a range that includes it, on the device's own rating label. Fluval's North American A202, for example, is rated 120 V / 60 Hz, and Intermatic rates its TN311 timer at 125 VAC, 60 Hz.[1][7]
Does 50 Hz vs 60 Hz matter for an air pump?
Don't assume it will work. EHEIM's air100 page gives 50 Hz ratings only and Sicce rates its AIRLIGHT pumps at 230-240 V / 50 Hz; we found no maker statement that either runs on North American 60 Hz power.[3][2]
How do I tell which variant a listing sells?
Look for the maker's item number and voltage for that item. Fluval, for example, lists the A202 as item A853 at 3 W on 120 V / 60 Hz, and gives the 230-240 V wattage separately.[1]
Does a battery feeder need a 120 V rating?
No mains rating applies to a battery-only unit. EHEIM's battery autofeeder carries an EU conformity symbol, which says nothing about North American mains.[5]