Some panel upgrades come down to choosing the missing piece. In the world of control cables, connectors, and I/O hardware, two very different components can end up on the same workbench: a rugged industrial waterproof connector and a remote I/O module. The CHALITECK industrial connector safely carries power into equipment, while the AutomationDirect H2-ERM100 lets a DirectLOGIC DL205 PLC communicate with remote I/O over a network connection. Whether you need one or both depends on whether your machine is struggling with power delivery or control networking.
Quick Verdict
Choose the CHALITECK industrial waterproof connector if you need a sealed electrical plug for heavy-duty power delivery, priced at $69. It's a pin-style connector set that keeps the power link dependable. Pick the AutomationDirect H2-ERM100 remote I/O module if you need to add a network port for remote I/O to a DirectLOGIC DL205 system, priced at $159. It gives you a way to expand the PLC's reach without changing the controller.
Comparison Table
| Feature | CHALITECK 63A Connector | AutomationDirect H2-ERM100 |
|---|---|---|
| Price | USD 69.00 | USD 159.00 |
| Condition | New | New - Open box |
| Core function | 63A 4-pin male & female IP67 electrical plug | DirectLOGIC DL205 remote I/O module |
| Connection type | 3-phase IEC60309 pin-style connector | 1 Ethernet 10/100Base-T port |
| Compatibility | 3-phase power connections | D2-240, D2-250, D2-250-1, D2-260, D2-262, Do-more H2 series CPUs; not D2-230 CPU or H2-WPLCx-xx |
| Best for | Delivering power to equipment | Expanding remote I/O over Ethernet |
Where Each Product Wins
Start by matching the component to the job. The CHALITECK connector wins in situations where moisture or dust threatens the power link; its sealed construction keeps the connection reliable even in tough environments. The AutomationDirect H2-ERM100 wins when your DirectLOGIC DL205 PLC needs remote I/O beyond the local rack; it adds a network port to the control system without requiring a new CPU.
Product Notes
CHALITECK 63A 4-Pin Male & Female Industrial Waterproof Connector IP67 3-Phase IEC60309

This connector is designed for high-current 3-phase applications where a reliable, sealed interface matters. The IP67 rating means the mated male and female halves resist water and dust, which makes it a strong fit for washdown areas and outdoor installations. Its 63A 4-pin layout follows the IEC60309 standard for electrical plugs, so you get a recognized configuration for pin-style connections. It ships as a new unit with both the plug and socket, giving you everything needed to complete a power feed. The limitation is scope: it only handles power, not control data, so you will still need separate network cabling for any PLC communication in the same panel.
AutomationDirect H2-ERM100 DirectLOGIC DL205 Remote I/O Module

This module gives a DirectLOGIC DL205 system one Ethernet 10/100Base-T port dedicated to remote I/O. It works with D2-240, D2-250, D2-250-1, D2-260, D2-262, or Do-more H2 series CPUs, which covers common DL205 controllers. If your field devices sit far from the main rack, this module lets you place I/O points where they are needed rather than running every wire back to the CPU. It is listed as new open-box, so confirm the unit matches your expected port and CPU list before installation. Its main limitation is compatibility: it will not work with a D2-230 CPU or H2-WPLCx-xx processors, so verify your CPU model before ordering.
Final Choice by Use Case
- If you are replacing or adding the power inlet for a machine, the CHALITECK industrial waterproof connector is the component to pick.
- If you are expanding the I/O capacity of a DirectLOGIC DL205 PLC across a network, the AutomationDirect H2-ERM100 is the module to mount.
- If both needs exist, plan for them as separate stages: one in the power path and one in the control network.