Quick verdict
When you're choosing among relays, contactors, and industrial switches, the first thing to decide is whether you're replacing an existing contactor or building out a control panel from scratch. This head-to-head compares two contactors that take different approaches: one is an HVAC-focused replacement part, and the other is designed more for control-panel work. Your choice will probably be settled by coil voltage, pole count, and mounting style.
The HIATSU is the lower-priced contactor and the easiest choice for a direct replacement job. The Shopcorp is the higher-priced unit, but it brings a more flexible switching arrangement for control-panel use. Match the coil voltage and contact configuration to your existing circuit first; if you do, the price gap becomes the main remaining issue.
At a glance
| Product | Price | Configuration |
|---|---|---|
| HIATSU Motor Contactor | $13.80 | 2-pole, 120V coil, HVAC replacement |
| Shopcorp 4 Pole Contactor | $99.95 | 4-pole, 24V coil, DIN rail mount, NC |
Where each product wins
HIATSU wins when the job is a simple swap and keeping the spend down matters most. Shopcorp wins when the control-panel design calls for a different contact arrangement and reliable rail mounting. Neither is a general-purpose winner; the right call depends on the circuit around it.
Product notes
HIATSU Motor Contactor
The HIATSU is built around a 2-pole design with a 120VAC coil, so it targets AC units and HVAC systems that use that control voltage. The copper construction, class B insulation, encapsulated coil, and quick-connect terminals all point to a maintenance-friendly part. At $13.80, it is the lowest-priced option in this comparison, and that makes it an easy call when you already know your circuit matches its 120V coil. The main thing to keep in mind is that this is a 2-pole contactor with a specific coil voltage; a 4-pole panel design or a 24V coil would point you to the Shopcorp instead. If your replacement job fits the HIATSU's spec, there is no reason to overspend.
Shopcorp 4 Pole Contactor
The Shopcorp is the more specialized of the two. Its 24V coil, 4-pole layout, normally-closed contact arrangement, and DIN rail mount make it a stronger fit for motor and lighting panels where rail-mount hardware is already in place. It also includes a silent, no-humming coil and a power status indicator, which are useful touches when the contactor sits inside an enclosure. At $99.95, the price is noticeably higher, so the decision comes down to whether those capabilities are worth it. For a job that needs 24V control and multiple switched poles, the Shopcorp gives you a purpose-built solution; for a straightforward 120V HVAC replacement, that added capability is extra cost.
Final choice by use case
Use the table above to match your control circuit's coil voltage and switching needs. In most replacement scenarios, that math points to the HIATSU Motor Contactor. In most panel-build scenarios, it points to the Shopcorp 4 Pole Contactor. The two prices are far enough apart that the decision should be made on fit first.
