Overview
The Square D 9050JCK23V20 is a general-purpose timing relay from the industry-trusted JCK series. Designed for low-cost, reliable timing in plug-in octal socket housings, this off-delay relay delivers precision timing control for residential, commercial, and light industrial applications. The unit features DPDT (double-pole double-throw) contacts rated at 10 A and operates on 120 VAC / 110 VDC coil voltage.
Key Features
- Off-delay timing mode — relay contacts delay before returning to shelf state after input voltage is removed
- ±0.1% repeat accuracy — high precision timing suitable for demanding control circuits
- Timing range: 0.05 seconds to 999 hours — easily adjustable via top-mounted controls
- DPDT configuration: 2 normally open (N.O.) and 2 normally closed (N.C.) contacts
- 10 A contact rating — resistive load capacity at 120 VAC, 240 VAC, and 30 VDC
- Octal socket mount — directly interchangeable with 8-pin and 11-pin octal base timers
- RoHS compliant — meets environmental and hazardous substance restrictions
Technical Specifications
- Control Voltage (Coil): 120 VAC / 110 VDC
- Contact Configuration: DPDT (2 N.O. + 2 N.C.)
- Contact Rating: 10 A resistive (at 120/240 VAC and 30 VDC)
- Timing Function: Off-Delay
- Timing Range: 0.05 seconds to 999 hours
- Repeat Accuracy: ±0.1%
- Base Type: 8-pin octal socketable
- Operating Temperature: −28 °C to +65 °C
- Mounting: Plug-in socket (8501NR61 or 8501NR62 compatible)
Typical Applications
The 9050JCK23V20 is ideal for control circuits requiring precise off-delay timing, including:
- Lighting load disconnection and fade-out sequences
- HVAC system fan coil motor soft-off and cooling cycles
- Appliance and equipment shutdown delays
- Industrial automation and machinery control circuits
- Panel-mounted and DIN-track installations in control enclosures
Compatibility & Replacements
Compatible With
- 8501NR61 and 8501NR62 relay sockets
- 35 mm DIN 3 mounting track and direct panel mounting
- 120 VAC / 110 VDC control circuits
- Standard octal socket-base relay installations
- Residential, commercial, and light industrial control panels
Replaces / Drop-In Replacement For
The 9050JCK23V20 directly replaces other off-delay timing relays in the Square D 9050JCK series with equivalent specifications. Verify your existing socket type (8501NR61/NR62) and coil voltage (120 VAC / 110 VDC) before ordering. Consult your system integrator if replacing relays from other manufacturers.
Works With
- Square D control relay sockets and timing accessories
- Schneider Electric / Square D enclosure systems
- Standard industrial control circuits and ladder logic designs
- Pneumatic and electromechanical timer attachments (where socket compatibility exists)
