Overview
The NCC T3K-5-461 is a solid-state time delay relay manufactured by National Controls Corporation (AMETEK). This timer delivers reliable, adjustable timing delays from 0.5 to 5 seconds, suitable for machine sequencing, process control, and relay switching applications in industrial and commercial settings.
Key Features
- Adjustable time delay range: 0.5 to 5 seconds
- Solid-state design for noise-free, reliable operation
- 120VAC 50/60Hz input power
- 10A output contacts rated for 120/240VAC
- Compact form factor for easy panel mounting and integration
- Durable construction suitable for industrial and food service environments
Technical Specifications
- Input Voltage: 120VAC, 50/60Hz
- Output Contacts: 10A at 120/240VAC
- Horsepower Rating: 1/3 HP
- Time Delay Range: 0.5–5 seconds
- Mounting: Panel-mount with standard screw terminals
- Weight: Approximately 170 grams
- Certification: Industrial-grade solid-state construction
Typical Applications
- Machine startup sequencing and soft-start circuits
- Conveyor belt and motor control delays
- Solenoid and valve actuation timing
- Pump priming and fill-level control
- Food service equipment control (heating, cooling cycles)
- General industrial process automation and synchronization
Compatibility & Replacements
Compatible With
- 120VAC single-phase industrial control circuits
- Standard panel-mount relay bases and terminal strips
- Machinery and equipment requiring 0.5–5 second timing delays
- Manual and automatic process control systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or equipment manufacturer before ordering. The T3K-5-461 may replace other NCC T3K series timers with different time ranges if the circuit requirements match (verify input voltage and output contact rating).
Works With
- Electromechanical and solid-state control circuits
- AC power distribution systems (50/60Hz)
- Standard industrial relay logic and PLC input modules
- Manual panel-mounted automation systems






