Overview
The Square D 8501 PHD40E /B is a Class 8501 industrial control relay manufactured by Schneider Electric. This NEMA-rated relay combines rugged construction with modular design, making it ideal for demanding industrial automation environments where reliability and long service life are critical. New in box condition ensures factory-fresh performance.
Key Features
- Heavy-duty NEMA Type control relay with modular construction
- Replaceable, convertible contact cartridges for easy maintenance
- Plug-in color-coded contact cartridges for quick identification
- Mechanical tie between contact cartridges ensures synchronized operation
- Designed for high reliability in automotive, industrial, and automation applications
- New in box condition—factory sealed and unused
Technical Specifications
- Series: Square D Class 8501
- Maximum Voltage Rating: 120 or 240 VAC; 28 VDC maximum
- Pick-up Time: 13 ms typical
- Drop-out Time: 6 ms maximum
- Ambient Temperature Range: -45°C to +70°C (-49°F to +158°F)
- Terminal Type: Screw clamp
- Contact Configuration: Modular (varies by specific contact cartridge)
- Approvals: UL listed, CSA certified
Typical Applications
Square D 8501 control relays are specified for use in automotive manufacturing plants, industrial machinery controls, HVAC systems, bottling and packaging equipment, crane and hoist controls, car wash systems, food and beverage processing, oil and gas operations, and general industrial automation. Their modular design and rapid switching characteristics make them suitable for applications requiring frequent relay switching or time-sensitive control logic.
Compatibility & Replacements
Compatible With
- Square D relay sockets and mounting accessories
- Standard industrial control panels and enclosures
- NEMA-compliant electrical systems
- AC and DC control circuits (per voltage ratings)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Square D 8501 series includes multiple contact configurations and coil voltages; confirm exact model compatibility with your application requirements.
Works With
- Square D control relay sockets (NR series and equivalent)
- Standard industrial wiring practices and NEMA standards
- Manual and programmable logic controllers (PLC) using relay logic outputs
- Industrial control systems requiring standard electromechanical relays
