FCT18-Ap Power On-Delay Time Relay
Simplified Timing Control Triggered by Power Application
Product Overview
The FCT18-Ap is a streamlined power on-delay relay that initiates timing sequences upon power application. Engineered for industrial automation systems where simplicity is key, 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-Ap is the ideal solution for applications requiring automatic delayed activation after power-up.
Key Technical Advantages
Power-Triggered Operation
Simplified design with timing activated by power application, no control signal required.
Extended Timing Range
Precise timing from 0.1 seconds to 100 days for diverse industrial needs.
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.
Simplified Wiring
No control signal input needed – only power and output connections.
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-Ap power on-delay relay excels in scenarios where delayed activation after power application is required. Below are key applications where its simplicity and reliability deliver superior performance:
Equipment Startup Sequencing
Delays activation of secondary systems after primary equipment power-up, preventing power surges and ensuring proper startup sequences.
Key Benefits:
- Prevents electrical overload during startup
- Ensures proper equipment initialization
- Reduces stress on power systems
Backup Power Systems
Delays activation of non-critical loads during power restoration, preventing overload on generators or UPS systems.
Key Benefits:
- Stabilizes power systems during restoration
- Prioritizes critical equipment startup
- Prevents generator overload
Ventilation Systems
Delays fan activation after power application, allowing dust and contaminants to settle before ventilation begins.
Key Benefits:
- Improves air quality in sensitive environments
- Reduces equipment contamination
- Extends filter life
Timing Sequence
Timing Operation:
- Power (Un) applied – timing starts
- After preset time (T) – output (R) closes
- Output (R) remains closed while power is present
- Output (R) opens immediately when power is removed
Wiring Diagram
Connection Guide:
Simplified wiring with no control signal input required:
- A1/A2: Power supply terminals
- 11/12/14 & 21/22/24: Output contacts (C/O)
- LED Indicator: Shows relay status
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-Ap1 | FCT18-Ap2 |
|---|---|---|
| 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 | |
Get Technical Support
Contact our engineering team for application assistance
