Overview
The Potter Brumfield SSRT-240D25 is a Hockey Puck solid state relay designed for industrial and commercial switching applications. With 25A capacity, 3-32VDC control input, and 24-280VAC output rating, this relay provides reliable on/off control for heating elements, motors, solenoids, and other industrial loads. The SSRT-240D25 features opto-electronic isolation, zero-crossing switching, and a snubberless TRIAC output architecture for cost-effective, maintenance-free operation.
Key Features
- SPST-NO (Single Pole Single Throw, Normally Open) contact configuration
- 25A continuous duty current rating at 280VAC maximum
- 3-32VDC control voltage range for logic-level triggering
- Zero-crossing switching to minimize RFI and extend load life
- Opto-electronic coupler isolation for enhanced noise immunity and safety
- Snubberless TRIAC output—no external surge protection required
- Panel-mount design with screw terminals for field installation
- Plastic hockey puck case for compact integration
Technical Specifications
- Load Current: 25A continuous duty
- Output Voltage Range: 24–280VAC (RMS)
- Control Voltage Range: 3–32VDC
- Control Voltage Minimum: 3VDC
- Control Voltage Maximum: 32VDC
- Switching Mode: Zero-crossing
- Output Configuration: Snubberless TRIAC
- Contact Type: SPST-NO
- Terminal Style: Screw terminals
- Mounting: Panel mount
- Isolation: Opto-electronic coupler
- RoHS Compliant: Yes
- Switching Rating: 0.1–25A RMS
- EMC Level: European EMC Directive Level 3 (enhanced noise immunity)
Typical Applications
The SSRT-240D25 is commonly used in:
- Industrial heating element control (furnaces, ovens, process heaters)
- Motor and pump starting circuits
- Solenoid and electromagnetic valve switching
- Fan and compressor duty cycles
- HVAC control systems
- Machine automation and PLC-driven control loops
- Lighting control and load switching in commercial buildings
Compatibility & Replacements
Compatible With
- PLC and automation controller outputs (5-32VDC logic levels)
- Industrial control systems and panel-mount assemblies
- 24VDC and 12VDC industrial power supplies
- Standard 120/240VAC industrial power distribution
- Screw-terminal control panels
Replaces / Drop-In Replacement For
- SSRT series relays with similar 25A 240VAC specifications
- Legacy Potter Brumfield and TE Connectivity SSR-240D25 units
- Direct replacement as TE Connectivity internal part number 2-1393030-2
Works With
- Studio 5000 (Logix platform) output modules and control logic
- Siemens SIMATIC S7 and S5 systems
- Mitsubishi MELSEC and QNANO programmable controllers
- Omron and Schneider Electric PLC platforms
- Standard screw-terminal industrial cabinets and DIN-rail enclosures
- EtherNet/IP and PROFIBUS gateways with relay control nodes
