Overview
The Square D 80270 is a Type DO-20 general purpose control relay from the Class 8501 series. This compact AC control relay delivers reliable switching performance in industrial automation, pilot duty applications, and light-load motor control circuits. With a 10A contact rating and standard 120VAC coil voltage, it integrates seamlessly into existing control panels and distributed automation systems.
Key Features
- Two normally-open (2NO) contacts for flexible control logic
- 10A rated contact capacity suitable for motors, heaters, solenoids, and pump controls
- 120VAC coil at 50/60 Hz for North American industrial applications
- Open-frame, Series C design for compact DIN-rail or socket mounting
- Fast pickup and dropout times (13ms typical pickup, 6ms max dropout)
- UL and CSA listed; suitable for continuous-duty operation
Technical Specifications
- Contact Configuration: DPST (Dual Pole Single Throw), 2NO contacts
- Coil Voltage: 120VAC, 50/60 Hz
- Contact Rating: 10A (at 250VAC nominal)
- Operating Temperature: -55°C to +45°C (-67°F to +113°F) AC-rated
- Pickup Time: 13ms typical
- Dropout Time: 6ms maximum
- Enclosure Type: Open Frame, Series C
- Connection: Screw-clamp terminals
- Duty Rating: Continuous
Typical Applications
Square D 80270 relays excel in:
- Electric motor starters and auxiliary circuits
- Heating element control and thermal management systems
- Conveyor and material-handling equipment control
- Pump and compressor motor switching
- Pilot lights, audible signals, and alarm circuits
- Light-load and low-inrush-current applications
Compatibility & Replacements
Compatible With
- Square D Class 8501 relay sockets (8501NR51, 8501NR61, and compatible bases)
- Standard industrial control cabinets and distribution panels
- DIN-rail mounting systems with appropriate adapters
- NEMA starter and contactor circuits requiring auxiliary logic
- 50/60 Hz, 120VAC power supplies
Replaces / Drop-In Replacement For
- Other Square D Type DO-20 relays in the same voltage class
- Legacy 8501 general-purpose relays where direct socket compatibility exists
- Note: Always verify socket type (NR51, NR61, etc.) before ordering replacement units
Works With
- Square D Class 8501 plug-in relay sockets and bases
- Electromechanical starter and soft-starter auxiliary circuits
- Hardwired logic and relay-based control systems
- Industrial instrumentation and timing circuits
- Open-frame or panel-mounted control architectures
