FCT18-At Dual Output Time Relay
On-Delay Timing + Instantaneous Output in a Single Compact Unit
Product Overview
The FCT18-At is an advanced dual-output time relay featuring both on-delay timing and instantaneous output functionality. Engineered for industrial automation and control systems, it provides two independent 16A relay outputs – one with precise timing control and one with immediate response. With its compact 18mm DIN rail design and wide operating voltage range (12-240V AC/DC), the FCT18-At is the optimal solution for applications requiring both immediate and delayed control signals.
Dual Independent Output Design
The FCT18-At features two completely independent 16A relay outputs, providing both instantaneous and delayed control signals from a single device.
On-Delay Output
Provides precise timing control with adjustable delay from 0.1 seconds to 100 days after power-on.
Instantaneous Output
Immediately energizes upon power application and de-energizes immediately upon power removal.
Key Technical Advantages
Universal Voltage Input
Operates with 12-240V AC/DC, compatible with global industrial power standards.
Extensive Timing Range
Precise timing from 0.1 seconds to 100 days for diverse industrial applications.
Ultra-Compact Design
Space-saving 18mm width (90×18×64mm) for high-density control panels.
Exceptional Accuracy
Repeat accuracy ∆< ±0.5% and Time setting accuracy ∆< ±0.1%.
Industrial Robustness
Designed for -20°C to +60°C environments with EMI resistance.
Flexible Triggering
Supports NPN or PNP input options for versatile integration.
Dual High-Capacity Output
2×16A C/O contacts (1 delayed + 1 instantaneous) for industrial loads.
Button Setting & Locking
Precision time setting via tactile buttons with locking protection to prevent accidental changes.
Industrial Application Scenarios
The FCT18-At dual-output timer excels in scenarios where both immediate and delayed control actions are required. Below are key applications where its dual functionality delivers superior performance:
Motor Control Systems
Instant output controls main motor contactor while delayed output manages cooling fan operation after motor shutdown.
Key Benefits:
- Immediate motor start with delayed cooling
- Single device replaces two separate relays
- Reduces panel space and wiring complexity
Lighting Control Systems
Instant output controls primary lighting while delayed output manages emergency or safety lighting after power loss.
Key Benefits:
- Immediate illumination with delayed safety lighting
- Simplifies lighting control circuits
- Compliant with safety standards
Conveyor System Sequencing
Instant output starts primary conveyor while delayed output activates downstream equipment after precise time interval.
Key Benefits:
- Eliminates multiple timing devices
- Ensures proper material flow sequencing
- Reduces jams and improves efficiency
Pump Control Systems
Instant output controls main pump operation while delayed output manages purge or drain cycles after pump shutdown.
Key Benefits:
- Immediate pumping action with delayed purging
- Prevents system blockages and corrosion
- Reduces maintenance requirements
Heating Systems
Instant output activates heating elements while delayed output controls cooling fans after heating cycle completion.
Key Benefits:
- Precise temperature control with safety cooling
- Prevents overheating damage
- Improves system longevity
Automated Machinery
Instant output controls primary machine functions while delayed output manages safety interlocks or indicator lights.
Key Benefits:
- Enhanced machine safety with delayed indicators
- Simplifies control cabinet wiring
- Reduces component count and costs
Timing Sequence
Dual Output Operation:
Instantaneous Output(R1) : Closes immediately upon power application and opens immediately upon power removal.
Delayed Output(R2) : The timing period T starts on power-on. At the end of the timing period T, the output closes.
Closing of the S contact makes the delayed output open. Opening of S restarts timing period T.
Wiring Diagram
Connection Guide:
Standard DIN rail mounting with screw terminals for secure industrial connections:
- A1/A2: Power supply terminals
- S: Control signal input
- 11/12/14: Instantaneous output contacts (C/O)
- 21/22/24: Delayed output contacts (C/O)
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-At |
|---|---|
| Input terminal | A1-A2 |
| Voltage range | AC230V / DC24V / ACDC12-240V |
| Voltage tolerance | -15% ~ +10% |
| Output type | 2 C/O contacts (1 instantaneous + 1 delayed) |
| Rated current | 2×16A (each contact) |
| Power consumption | AC 3.5VA / DC 2.0W |
| Time delay setting accuracy | ±0.1% of full-scale value |
| Repeat accuracy | Δt < ±0.5% |
| Mechanical life | 10 million operations |
| Electrical life | 100,000 operations |
| Ambient temperature | -20°C to +60°C |
| Mounting | DIN rail EN/IEC 60715 |
| IP rating | IP20 |
| Dimensions | 90×18×64mm |
| Standards | IEC60947-5-1, EN6812-1 |
Get Technical Support
Contact our engineering team for application assistance
