Choosing between two industrial networking fieldbus gateways is about matching the hardware to the network you already have. You don't want to buy a gateway that speaks the wrong protocol, and you also don't want to overpay for a unit that doesn't fit. The Wenglor ZAG73AN02 and the Burkert 00307390 / ME43 are both on the table, and they serve different preferences. Here's how to decide.
Quick Verdict
If you want a new open-box gateway and your network uses PROFIBUS DP, the Wenglor ZAG73AN02 is the natural choice. If you're willing to buy a used unit and you're working with Industrial Ethernet, the Burkert ME43 gets the job done for less. Both are functional, but your network type and condition tolerance will point you to one.
Side-by-Side Comparison
| Product | Price | Condition | Interface Detail | Price Bar |
|---|---|---|---|---|
| WENGLOR ZAG73AN02 FIELDBUS GATEWAY BH0229 | $361.20 | New - Open box | RS-232 to PROFIBUS DP | |
| Burkert 00307390 / ME43 Industrial Ethernet Fieldbus Gateway Used | $249.99 | Used | Industrial Ethernet fieldbus gateway |
The two sit at opposite ends of the $249.99-to-$361.20 price range, so the Burkert is the more affordable option. The condition difference-new open-box versus used-helps explain why the Wenglor costs more.
Where the Wenglor Wins
- Open-box condition: You're getting a unit that hasn't been used on a production line, which is a clear advantage if you want to avoid wear.
- Interface specification: The required interface is spelled out, so you know exactly which protocol it's built for.
- Manufacturer detail: The Wenglor name and MPN ZAG73AN02 give you specific info to look up.
Where the Burkert Wins
- Lower price: It sits at the bottom of the price range, which makes it the more affordable pick.
- Clear model naming: The title includes 00307390 / ME43, so you can find documentation without guessing.
- Working pull: It's described as a working pull, meaning it was functioning when removed.
Product Notes
Wenglor ZAG73AN02 Fieldbus Gateway
The Wenglor ZAG73AN02 is the higher-priced entry in this head-to-head, and it earns that position with a new open-box condition and a clearly stated RS-232 to PROFIBUS DP interface. If you're building or maintaining a PROFIBUS DP network and need to connect RS-232 devices, this gateway is the more direct fit. The new condition means you're not dealing with unknown wear from a previous production run, which is a strong reason to choose it. The main limitation is the price: you're paying more for the unused state and the specific protocol. Also, the product title includes 'BH0229' without much context, so you'll likely need to rely on the MPN ZAG73AN02 when looking up documentation. It's the better choice if protocol match and condition are your top priorities.
Burkert ME43 Fieldbus Gateway
The Burkert 00307390 / ME43 is the lower-priced option, and it's clearly labeled as a used unit that's described as a working pull. That means you're getting a gateway that was functioning when it was removed from service, but it doesn't come with the same peace of mind as a new open-box unit. The clear model number in the title makes it easy to search for manufacturer specs, which is a practical advantage. If you're on an Industrial Ethernet network and you need a fieldbus gateway without spending the extra dollars, this is the one to pick. The trade-off is the used condition-you're accepting some uncertainty about how much life it has left. For a lower upfront investment, that's a reasonable trade, but only if you're comfortable with used industrial parts.
Final Choice by Use Case
Choose the Wenglor ZAG73AN02 when you need a new unit with a specific interface and you're not as sensitive to the higher price. Choose the Burkert ME43 when you want to keep costs down and you're comfortable with used gear. Either way, the decision comes down to protocol fit and how much condition matters to you.
