RUN CAPACITORS (MOTOR RUN CAPACITORS WITH FIXED 8M BOLT)

Built for Aussie job sites, this All Controls 450VAC Motor Run Capacitor range (plastic case) is the dependable swap for tired single-phase fan and pump motors in HVAC and refrigeration. Choose the correct MFD (µF) and you’ll typically see steadier RPM, lower running amps, and fewer nuisance “it’s still noisy” call-backs.

How a Motor Run Capacitor Works (and what it’s for)

A motor run capacitor stays in the circuit while the motor is running, creating the phase shift a PSC (permanent split capacitor) motor needs to run smoothly and efficiently. In practical terms, it helps condenser fans, blowers, and many pump motors hold torque under load—so the motor doesn’t overheat, stall, or sound rough when the weather turns nasty.

Key Features & Trade Benefits

These caps are made for continuous operation in real plant-room conditions, not just clean workshop benches. The 450VAC rating gives you extra headroom over 370VAC replacements, which is handy on older sites or long cable runs where voltage can swing.

• 450VAC rated (run duty) — adds margin for voltage spikes and harsh summers, helping motors run cooler and last longer.
• 8mm mounting bolt options — most variants use a fixed 8mm bolt for a quick, secure bracket mount (great when you’re up a ladder).
• 1–80 MFD range — covers common values for condenser fans, indoor blowers, ventilation fans, and many pump motors.
• Durable plastic housing — impact-resistant and worksite-friendly for vans, roofs, and tight electrical compartments.
• Safety class P0 — clear spec so you can replace like-for-like and avoid mismatched parts on site.
• Clear MFD labelling — quick identification means faster diagnosis and fewer mistakes under time pressure.

Choose Your Variant (SKU & MFD List)

Run capacitors aren’t a “close enough” component—match the MFD on the motor’s original capacitor unless the OEM spec says otherwise. Use the table below to pick the exact value and mounting style you need, then double-check the variant name at checkout so the job stays clean.

Why This Product Matters

When a condenser fan is “hunting”, noisy, or pulling more amps than it should, the run cap is one of the fastest wins—especially in summer when head pressure climbs. Fit the correct MFD, lock the bolt down properly, and you’ll usually get smoother operation and cooler windings, which saves the customer (and you) from repeat visits.

Pro Tip (Picking the Right MFD & Confirming the Fix)

Match the MFD/µF to the original capacitor (or OEM spec) and keep the voltage rating equal or higher than what came out—never lower. After install, do a quick capacitance test (and a current check) so you can confidently sign off the job knowing you’ve fixed the cause, not just the symptom.

Compatibility & System Info

These are for single-phase PSC motors used in condenser fans, indoor blowers, ventilation fans and many pump motors, plus some single-phase compressor circuits where a run capacitor is specified. This is not a start capacitor—if the motor needs extra starting torque, you’ll want a dedicated start capacitor or hard-start kit.

• Type: Motor Run Capacitor (continuous duty)
• Rated Voltage: 450VAC
• Capacitance Range: 1–80 MFD (select variant)
• Mounting: Fixed 8mm bolt on most variants (check variant name); 2 MFD variant notes “detach bolt”
• Safety Class: P0

Local Conditions in Mind

From humid Brisbane plant rooms to salty coastal installs around Newcastle and Sydney, capacitors cop vibration and heat day after day. A secure bolt mount and tidy terminations reduce failures, so the cap stays put and the motor stays stable—no worries.

What’s Included

You’ll receive one All Controls 450VAC motor run capacitor in the MFD value you select at checkout. Because this listing is variant-based, it’s worth double-checking the old capacitor label before ordering so the replacement is like-for-like.

• 1 × All Controls 450VAC Motor Run Capacitor (plastic) — selected MFD variant

Warranty & Returns

Covered by HVAC Shop’s Shipping & Returns policy. If your part arrives damaged or incorrect, we’ll sort it promptly so you can get back on the tools.

FAQs

Related Products

• Start Capacitors — handy when a compressor or pump needs extra starting torque, especially on warm heads or low voltage.
• Supco MFD10 Digital Capacitor Tester — quick MFD checks so you can confirm the fault and verify the replacement fast.
• SUPCO SPP Hard Start Kits — for stubborn single-phase compressors that need an extra push to get off the line.