FCT18-AgR Industrial On-Delay Relay with Retrigger/Restart
Advanced Timing Control with Retrigger/Restart Signal Functionality
Product Overview
The FCT18-AgR is an advanced power on-delay relay with retrigger/restart control signal functionality. Engineered for industrial automation and control systems, it provides reliable timing control with exceptional accuracy (±0.1%) and durability. With its compact 18mm DIN rail design and wide operating voltage range (12-240V AC/DC), the FCT18-AgR is the optimal solution for demanding industrial applications requiring precise timing control with retrigger/restart capability.
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.
Advanced Retrigger/Restart
Flexible control with retrigger/restart functionality for dynamic applications.
High-Capacity Output
16A C/O contacts (1 or 2 sets) for industrial loads.
EMI Resistance
Strong resistance to electromagnetic interference for reliable operation in industrial environments.
Button Setting & Locking
Precision time setting via tactile buttons with locking protection to prevent accidental changes.
Industrial Application Scenarios
The FCT18-AgR relay with retrigger/restart functionality excels in scenarios where controlled delay after signal termination is critical, with the ability to restart the timing cycle upon receiving a new trigger signal. Below are key applications where its functionality delivers superior performance:
Equipment Cooling Systems
Maintains cooling fans or pumps for a preset period after machinery (e.g., motors, generators) shuts down, preventing overheating from residual heat.
Key Benefits:
- Extends equipment lifespan by managing residual heat
- Retrigger feature adapts to intermittent operation
- Reduces energy waste vs. continuous cooling
Safety Lighting Control
Delays shutdown of emergency or pathway lighting after main power cutoff, ensuring safe evacuation or equipment inspection in industrial facilities.
Key Benefits:
- Enhances workplace safety during power transitions
- Retrigger function resets delay if power fluctuates
- Compliant with industrial safety standards
Emergency Stop Sequences
Controls delayed deactivation of auxiliary systems (e.g., conveyors, valves) after an emergency stop, preventing sudden load drops or pressure spikes.
Key Benefits:
- Mitigates mechanical stress during emergency shutdowns
- Retriggering allows safe system restart without full reset
- Improves overall safety protocol compliance
Fluid System Purge Cycles
Maintains valve actuation for a set period after pump shutdown, purging residual fluids from pipes to prevent corrosion or contamination.
Key Benefits:
- Prevents fluid stagnation and system blockages
- Adapts to variable operation via retriggering
- Reduces maintenance costs from system fouling
Access Control Systems
Delays locking of industrial gates/doors after access authorization is revoked, ensuring personnel/vehicles clear the area safely.
Key Benefits:
- Prevents entrapment during access transitions
- Retrigger feature accommodates slow-moving equipment
- Integrates seamlessly with security systems
Automated Process Shutdown
Coordinates staged shutdown of production line components (e.g., heaters, mixers) after main process termination, preventing material waste or equipment damage.
Key Benefits:
- Ensures process integrity during shutdown
- Retrigger adapts to unexpected process resumptions
- Reduces scrap from abrupt stops
Retrigger/Restart Timing Sequence
Timing Operation:
The first control signal (S) applied: output (R) closes immediately, then opens after preset time (T).
When first control signal (S) is removed: output (R) closes immediately, then opens after preset time (T).
The following control signals applied: output closes immediately, then opens after 2T.
Control signal will be invalid during timing.
Wiring Configuration
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 & 21/22/24: Output contacts (C/O)
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-AgR1 | FCT18-AgR2 |
|---|---|---|
| Input terminal | A1-A2 | |
| Voltage range | AC230V / DC24V / ACDC12-240V | |
| Voltage tolerance | -15% ~ +10% | |
| Output type | 1 C/O contact | 2 C/O contacts |
| Rated current | 1×16A | 2×16A |
| 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 | |
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