Overview
The Cutler Hammer D2PR4A1 is a D2 Series general purpose plug-in relay manufactured by Eaton. This 4PDT (four-pole double-throw) relay features a 110/125VDC coil and is rated for 10A contact switching, making it suitable for a wide range of industrial control applications including PLC outputs, motor control circuits, and logic-based automation systems. Though discontinued by the manufacturer, this surplus unit remains fully functional and compatible with legacy control systems.
Key Features
- 4PDT (four-pole double-throw) contact configuration for multiple circuit switching
- 110/125VDC coil voltage with 11,000 Ohms coil resistance
- 10A contact rating at 240VAC / 28VDC—suitable for most industrial loads
- Silver alloy contacts for corrosion resistance and reliable switching
- Plug-in terminal design for quick installation and field replacement
- IP40 enclosure rating for indoor industrial environments
- Plain cover construction—compact form factor fits standard relay sockets
Technical Specifications
- Relay Series: D2 General Purpose
- Contact Configuration: 4PDT
- Coil Voltage: 110/125VDC
- Coil Resistance: 11,000 Ohms
- Contact Rating: 10A @ 240VAC, 28VDC
- Contact Material: Silver Alloy
- Terminal Type: Plug-in (DIN compatible socket)
- Enclosure Rating: IP40
- Manufacturer: Eaton (Cutler-Hammer Division)
- Status: Discontinued—available in surplus stock
Typical Applications
- PLC output modules and control logic circuits
- Motor starter interlocks and reversing contactors
- Industrial automation and process control systems
- Legacy control panel replacements and field repairs
- Solenoid and valve switching circuits in manufacturing equipment
Compatibility & Replacements
Compatible With
- Standard D2 Series relay sockets (4-pole configuration)
- DIN rail mount socket assemblies with spring-clip retention
- Legacy Eaton/Cutler-Hammer control panels and relay racks
- Any control circuit requiring 110VDC coil actuation and 4PDT switching
Replaces / Drop-In Replacement For
- Previous revisions of Eaton D2PR4A1 relays in the same D2 series
- Compatible as a direct swap in original Cutler-Hammer equipment using D2PR4A1 specification
- Verify coil voltage, contact configuration, and socket type with your equipment before ordering
Works With
- D2 Series relay sockets and DIN rail accessories (D2PA6, PMC-A1, PFP-M)
- Any standard 4-pole relay socket rated for general purpose switching
- Control systems using 110VDC logic and field-mounted relay banks
- Both pneumatic and solenoid output circuits in legacy automation platforms
