Overview
The Eaton Cutler-Hammer D3PR33T /A2 is a general-purpose 3PDT relay designed for industrial control and automation applications. This 24VAC coil model features a built-in test button and indicator light for convenient operator diagnostics and control. The D3 series represents decades of proven reliability in motor control centers, panel builds, and distributed control systems where stable switching performance and long service life are essential.
Key Features
- 3PDT (triple-pole double-throw) contact configuration for flexible switching logic
- 24VAC operating coil voltage
- Integral test button allows manual coil energization without external circuit triggers
- Indicator light provides visual confirmation of relay state
- 11-pin octal terminal base for standard D3-series sockets
- Silver alloy contacts rated 10 amps at rated load
- IP40 enclosure protection rating
- Plug-in design simplifies replacement and troubleshooting
Technical Specifications
- Manufacturer: Eaton Cutler-Hammer
- Model Number: D3PR33T /A2
- Contact Configuration: 3PDT (3 poles, double-throw)
- Coil Voltage: 24VAC
- Coil Frequency: 50/60 Hz
- Contact Rating: 10 amps at rated load
- Pin Configuration: 11-pin octal base
- Features: Test button, indicator light
- Contact Material: Silver alloy
- Enclosure Rating: IP40
- Series: D3 General-Purpose Relay
- Condition: New in Box
Typical Applications
- Motor control centers and starter panels
- Programmable logic controller (PLC) discrete output expansion
- Interlocking and permissive logic circuits
- Sequence control and automation systems
- Industrial machinery control (pumps, compressors, conveyors)
- HVAC and facility automation
- Panel-mounted control logic for batch and continuous processes
Compatibility & Replacements
Compatible With
- Eaton D3 series relay sockets (D3PA-series)
- Standard octal-base 11-pin relay enclosures
- Industrial automation systems requiring 24VAC coil relays
- Motor control centers with D3-series slots
- Distributed control and PLC discrete output modules
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering, as relay replacement requires matching coil voltage, contact configuration, and pin layout with existing circuit requirements.
Works With
- 24VAC power supplies and transformers
- Eaton PLC and industrial control systems
- Discrete I/O modules requiring relay expansion
- Standard motor control and automation platforms
- Allen-Bradley, Siemens, Omron, and other third-party controllers via standard relay protocols
