Overview
The Square D 9050JCK23V20 /D is a Class 9050 plug-in off-delay timing relay designed for general-purpose control in industrial automation, manufacturing, and commercial HVAC systems. Manufactured by Schneider Electric (Square D), this relay delivers accurate time-delay switching with minimal cost and footprint. Off-delay timing begins when the input voltage is removed, and contacts return to their shelf state when the preset delay elapses. The unit is compatible with standard 8501NR relay sockets for 35 mm DIN rail or panel mounting.
Key Features
- Off-delay timing function with adjustable range of 0.6 to 60 seconds
- 10 ampere DPDT contacts (2 NO, 2 NC) rated for resistive and inductive loads
- Plug-in design for quick installation and replacement
- Low-cost operation ideal for lighting disconnects, HVAC cycling, and appliance control
- Transient-protected circuitry for noise immunity
- UL Listed, CSA Certified, RoHS Compliant when used with proper 8501NR sockets
Technical Specifications
- Timing Function: Off-Delay
- Timing Range: 0.6 to 60 seconds (adjustable via knob)
- Input Voltage: 120 VAC / 110 VDC
- Output Contact Rating: 10 A resistive @ 120 VAC, 240 VAC, 30 VDC
- Output Contact Rating (Inductive): 3 A @ 120 VAC, 240 VAC, 30 VDC
- Horsepower Rated: 1/3 HP (NC contacts), 1/2 HP (NO contacts) @ 120 VAC and 240 VAC
- Contact Configuration: DPDT (2 NO, 2 NC)
- Repeat Accuracy: ±1% (Class 9050 Type JCK11–59)
- Socket Compatibility: 8501NR61 or 8501NR62 relay socket
- Mounting: DIN 3 rail (35 mm) or direct panel mounting
- Certifications: UL Listed, UL Component Recognized, CSA, CE
- Condition: Used, tested and fully functional
Typical Applications
- Lighting control and disconnect functions in commercial buildings
- HVAC system sequencing and fan delay
- Air conditioning and appliance cycling
- Manufacturing equipment startup/shutdown timing
- Crane and hoist control logic
- Material handling equipment timing
Compatibility & Replacements
Compatible With
- 8501NR61 and 8501NR62 plug-in relay sockets
- 35 mm DIN 3 rail mounting systems
- Direct panel-mount installations
- 12–240 VAC/VDC control circuits (relay socket powered)
Replaces / Drop-In Replacement For
- Legacy Square D Class 9050 Type JCK23 timing relays (suffix V20 indicates 120 VAC/110 VDC coil voltage)
- Other 8 and 11-pin octal base timers in the same footprint
- Verify compatibility with your system integrator before ordering.
Works With
- Square D 8501 control relay line and general-purpose relays
- EtherNet/IP networks (when networked through compatible gateways)
- Standard industrial control panels and HVAC control boards
- Mechanical and solid-state control circuits
