Need to switch one heavy load or control a dozen circuits? That question separates the HIATSU 2-pole contactor from the 0907 PB 12-relay industrial PCB. Both belong in the relays, contactors, and industrial switches world, but they solve different problems. The HIATSU is a single-purpose contactor for HVAC and motor switching. The 0907 PB is a multi-relay industrial board for automation and control systems. Picking the wrong one means either paying for channels you don't need or running out of relay outputs halfway through a build.
Quick Verdict
If the project is an air conditioner contactor replacement or another single high-current motor circuit, buy the HIATSU. If you are wiring an industrial control panel where multiple devices need relay-controlled switching, the 0907 PB 12-relay board is the one that fits.
Side-by-Side Comparison
| Product | Price | Core Role | Best Used For |
|---|---|---|---|
| HIATSU Motor Contactor | $13.68 | 2-pole contactor with 30A FLA and 120VAC coil | Replacing or adding a contactor in an HVAC system |
| 0907 PB 12-Relay Industrial PCB Board | $350.00 | 12-relay-port industrial PCB | Multi-device control in an industrial automation panel |
Where Each Product Wins
HIATSU wins when the job is a direct replacement. It gives you a professional-grade contactor in a compact package with quick-connect terminals and CE/RoHS certification, and the price spread makes it the much lower-cost path. The 0907 PB wins when the job is system-level control. Its 12 relay ports let you handle many outputs from one board, which is exactly what automation projects need.
Product Notes
HIATSU Motor Contactor - 2-Pole Air Conditioner Contactor 30A 120V

The HIATSU 2-pole contactor is aimed at a specific, common repair scenario. It carries a 30A FLA rating and a 120VAC coil, and the description highlights quick-connect terminals, an encapsulated coil, class B insulation, and CE/RoHS certification. Copper construction is a practical plus for a contactor expected to pass current repeatedly. The package includes one contactor, so the reason to choose it is simple: if you know you need a 2-pole, 30A, 120V coil contactor for an HVAC system, this is a direct, low-cost fit. The limitation is scope. A single contactor handles one circuit, so larger multi-load projects will require either more contactors or a different switching solution.
0907 PB 12-Relay Industrial PCB Board

The 0907 PB is a purpose-built industrial PCB rather than a general-purpose contactor. Its main draw is the 12 relay ports, which give you room to control multiple electrical devices from one board in an automation or control setup. The product description emphasizes durable construction and reliable performance in professional settings, and the board is in new-open-box condition. That makes it a strong candidate when you need a central relay interface instead of a single heavy-duty switch. The caveat is its condition and positioning: it is a specialized board, so it suits someone already assembling an industrial control system, not someone doing a quick HVAC contactor swap. If the rest of your build needs many relay-controlled channels, this board gives you the channel count to make the project manageable.
Final Choice by Use Case
- For a single air-conditioner contactor replacement or motor-switching task: go with the HIATSU Motor Contactor at $13.68.
- For an industrial automation panel that needs many relay-controlled outputs: go with the 0907 PB 12-Relay Industrial PCB Board at $350.00.