8501CO8V04 - Square D Power Relay Description
8501CO8V04 - Square D Power Relay
The 8501CO8V04 is a Type C power relay used for switching small single-phase motors and other light loads. You’ll usually see it in control panels for heaters, pumps, or conveyor systems—especially where the original specs need to be matched. It’s a SPST relay with one normally closed contact, so the circuit stays closed until the coil is energized. The 277V AC coil is standard in a lot of commercial setups, so it tends to drop in without much trouble. On the load side, it’s rated 30 amps resistive at 300 VAC and can handle up to 2 HP motors. The design is simple. Open frame, so you can see what’s going on. Screw terminals, so wiring is straightforward. It mounts to a panel and does what it’s supposed to do. No extra parts, no guesswork—just a direct replacement when you need this exact setup.
Key Features and Benefits
- SPST with 1 normally closed (NC) contact
- 277 VAC coil – common in commercial systems
- 30A resistive rating (300 VAC)
- Handles small motors up to 2 HP
- Open frame design for easy inspection
- Panel mount with screw clamp terminals
Technical Specifications
- Series: 8501C
- Type: C Power Relay
- Contacts: SPST, 1 NC
- Current: 30A
- Coil Voltage: 277 VAC, 60 Hz
- Motor Rating: 2 HP
- Max Voltage: 600 VAC
- Phase: Single-phase
- Wire Size: AWG 10 copper
- Terminal Torque: 11–15 lb-in
- Mounting: Panel
- Size: 2.43" x 2.5" x 2.25"
- Temp Range: -22°F to 122°F
Material Compliance and Certifications
- UL Listed (E78351)
- CSA Certified
- CE Marked
- Meets standard safety requirements for use in industrial and commercial equipment .
Where It Works Best
- Heater controls
- Pump systems
- Conveyor equipment
- Material handling
- General control panels
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Specifications
- Width:2.5
- Height:2.63
- Depth:2.0
- Poles:1
- Amperes:30
- Type:8501
- Sub-Category:Power Relay
- Additional Notes:Square D, SPST-NC 30A @ 300VAC, 50/60Hz, Class 8501, General Purpose Power Relay with 277 Volts A.C. Coil. Additional Ratings are: 12A @ 480VAC, 10A @ 600VAC.
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