⚙️ SUPCO LCR5X440 LB Oval Run Capacitor – 5 MFD 370/440VAC
(Internally Protected, UL Approved)
The SUPCO LCR5X440 Run Capacitor provides dependable, long-lasting performance for HVAC and refrigeration systems. Designed to meet or exceed OEM specifications, it ensures consistent motor start and run efficiency under demanding operating conditions.
✅ Key Features
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✅ 5 MFD capacitance for precise motor performance
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✅ Dual voltage rated 370/440 VAC for broad system compatibility
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✅ Internally protected for enhanced safety and reliability
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✅ Meets EIA-456A accelerated life test (60,000 hrs @ 70°C)
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✅ 10,000 AFC pressure-sensitive short circuit protection
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✅ Thick polypropylene film for high heat and stress resistance
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✅ Oil leak, dielectric, and life tested for superior performance
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✅ UL and CSA Certified – File #E352486
📊 Specifications
| Specification | Detail |
|---|
| Manufacturer |
SUPCO |
| Model |
LCR5X440 |
| Capacitance |
5 MFD (µF) |
| Voltage Rating |
370/440 VAC |
| Frequency |
50/60 Hz |
| Tolerance |
±5% |
| Foil Thickness |
6.0 µm ±5% |
| Operating Temperature Range |
-40°F to 185°F (-40°C to 85°C) |
| Shape |
LB Oval |
| Construction |
Polypropylene film / oil-filled |
| Protection |
Internally Protected, 10,000 AFC |
| Certifications |
UL File #E352486, CSA (C22.2 No. 190) |
| Manufacturer Standard |
ISO-Certified Production |
⚠️ Common Symptoms of a Bad Run Capacitor
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Motor hums but fails to start
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Fan runs intermittently or stops unexpectedly
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Reduced cooling or compressor performance
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Swollen or leaking capacitor body
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Breaker tripping or inconsistent motor speeds
💬 Frequently Asked Questions (FAQ) ❓
Q: Can I use this capacitor for both 370V and 440V systems?
A: Yes — its dual voltage rating (370/440VAC) supports both applications.
Q: What does “internally protected” mean?
A: It includes built-in pressure-sensitive protection that disconnects during internal faults to prevent system damage.
Q: Is it oil-filled?
A: Yes — filled with PCB-free dielectric oil for cooler, safer operation.
Q: How long is the lifespan?
A: Life tested at 85°C for 10,000 cycles and rated for 60,000 hours at 70°C.
Q: Does it meet UL and CSA standards?
A: Yes, it’s UL listed (E352486) and CSA approved (C22.2 No.190) for U.S. and Canada compliance.
🛒 Shopping Tips
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Always match both MFD and voltage ratings to your existing capacitor.
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Replace immediately if your capacitor is bulging, cracked, or leaking.
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Keep a spare LCR5X440 on hand for quick HVAC service calls.
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Ideal for HVAC, refrigeration, and air handling unit motors.
