🚀 New launch promo — 10% off orders over $300. Use code LAUNCH10
Bubbles Supply
Not sure which part you need? Upload a photo and we'll find it. →
50 Amp 115V Contactor 3PC-120 - Bubbles Supply

50 Amp 115V Contactor 3PC-120

Part #: 3PC-120

$36.27
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
Add to B2B order list

Not sure this fits?

Send us a photo of your old part — we'll confirm the right replacement before you order.

Upload a Photo
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this relay/contactor

This Allied Innovations 50 Amp 115V Contactor 3PC-120 is a heavy-duty 3-pole, single-throw electrical component designed for spa and hot tub control systems. The 115VAC coil configuration makes it suitable for standard residential electrical setups, while the robust 50-amp rating handles high-power loads from pumps, heaters, and blowers in most spa applications.

Built to OEM specifications, this contactor delivers the exact fit you need to restore your spa's electrical function. At Bubbles Supply, we guarantee precise fitment and back every part with our comprehensive 1-year warranty. Orders placed by 2 PM ship the same day, getting your spa back online fast. Before installation, verify your existing contactor's voltage and amperage ratings match these specifications, and always turn off power at the breaker when performing electrical work.

Exact part number

3PC-120

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 3-pole contactor
  • 50A 115V coil contactor
  • hot tub contactor relay
  • spa power contactor

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Voltage
115V coil
Amperage
50A

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Spa completely dead with no response after power-on
  • Pumps or heater fail to energize despite control board sending signal
  • Contactor chattering or buzzing under load
  • Visible burn marks, pitting, or fused contacts on existing contactor
  • Spa trips breaker intermittently due to arcing contactor contacts

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing contactor's coil voltage is 115VAC — do not confuse with load-side voltage
  • Verify the amperage rating on your current contactor matches 50A
  • Count the poles on your existing contactor — this is a 3-pole, single-throw unit
  • Check that your control system uses a standard DIN rail or panel-mount configuration compatible with this form factor
  • Take a photo of your existing contactor's wiring before removal to reference during reinstallation

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Hard — Technician recommendedTypically 45-90 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

🔒 Secure checkout · SSL encrypted·🇺🇸🇨🇦 Serving the US and Canada·↩️ 30-day hassle-free returns·📦 Same-day fulfillment