When you're shopping for industrial power supplies transformers, the first step is matching the unit to your machine's control load, the voltage available on your floor, and the panel space you have. The new Eaton C5000K2A and the HPS PH100MQMJ sit at opposite ends of that decision, separated by a wide price gap. Do you need the Eaton's specific voltage configuration and new-condition status, or will the HPS's lower price and panel-mount design cover your circuit?
Quick Verdict
For most modest control applications, the HPS PH100MQMJ is the sensible choice: the lower price leaves room in your budget. The Eaton C5000K2A becomes the right pick when you need a transformer with 220-240V and 440-480V primary inputs and 110-120V secondary output, and you're comfortable spending more for that configuration.
At a Glance
| Product | Listed Price | Price Bar | Condition | Best For |
|---|---|---|---|---|
| Eaton C5000K2A | USD 450.00 | New | New transformer with 220-240V or 440-480V primary and 110-120V secondary | |
| HPS PH100MQMJ | USD 76.82 | New - Open box | Compact panel-mount control transformer with screw terminals |
Where Each Product Wins
The Eaton C5000K2A wins when your control panel calls for a transformer with a 220-240V or 440-480V primary and a 110-120V secondary, and you have the budget to match. The HPS PH100MQMJ wins for lighter-duty control circuits where the lower price makes it the lower-risk purchase.
HPS PH100MQMJ 100VA Industrial Control Transformer
At $76.82, the HPS PH100MQMJ is the lower-priced unit in this head-to-head. It's rated at 100VA, handles single-phase 50/60Hz operation, and is built as a dry-type, encapsulated open-style control transformer. The panel-mount form factor and screw terminals make it a natural fit for control enclosures where you need a simple, compact installation. Choose this one for modest machine-tool control circuits or relay loads that don't need a lot of power. The main limitation is the 'New - Open box' condition, which means you're getting a new unit but not a factory-sealed retail package. It's also a smaller unit, so if your control load is above 100VA, you'll need to look at a larger transformer. For the price, it's an easy pick for small panels.
Eaton C5000K2A Industrial Control Transformer
The Eaton C5000K2A is the higher-priced option. It handles 220-240V and 440-480V primary connections with a 110-120V secondary, and it comes in a reinforced double-wall box with the original label. That makes it a candidate for control panels that need to work with common industrial voltage feeds. The biggest consideration is the price gap: this unit costs $373.18 more than the HPS. If you don't need this specific voltage arrangement or a new Eaton transformer, that gap is hard to justify. But if your specification calls for it, the C5000K2A gives you a unit without the open-box caveat. It's the choice when your control panel needs this exact Eaton voltage configuration and your budget already allows for it.
Final Choice by Use Case
Choose the HPS PH100MQMJ if you want a 100VA control transformer at the lower listed price and can accept an open-box condition. It's the right fit for small control circuits that are within its rating. Choose the Eaton C5000K2A if you need a new transformer with 220-240V/440-480V primary and 110-120V secondary and are ready for the higher price point. The decision comes down to voltage configuration and budget.
