FCT18-Bta Industrial Off-Delay Time Relay
Precision Timing Control with Summation Control Signal Functionality
Product Overview
The FCT18-Bta is a high-precision off-delay relay with summation 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-Bta is the optimal solution for demanding industrial applications requiring precise timing control with accumulation.
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.
Summation Control
Accumulates time during signal presence with pausing capability.
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-Bta off-delay relay with summation control excels in scenarios where accumulated time delay after signal termination is critical. Below are key applications where its unique functionality delivers superior performance:
Intermittent Cooling Systems
Maintains cooling fans after equipment shutdown, accumulating cooling time during intermittent operation cycles for optimal thermal management.
Key Benefits:
- Accumulates cooling time during multiple cycles
- Pauses timing when equipment restarts
- Prevents overheating during complex operations
Accumulated Safety Lighting
Delays shutdown of pathway lighting after multiple short power interruptions, accumulating dark periods for safe evacuation.
Key Benefits:
- Accumulates time during intermittent power losses
- Ensures safe evacuation in complex scenarios
- Compliant with industrial safety standards
Production Line Cleanup
Activates post-production cleanup systems after accumulated operation time, ensuring thorough cleaning after complex processes.
Key Benefits:
- Accumulates cleaning time during production runs
- Pauses during short interruptions
- Maintains production line hygiene
Fluid System Purge Cycles
Maintains valve actuation for accumulated time after pump shutdown, purging residual fluids from pipes during intermittent operations.
Key Benefits:
- Accumulates purge time during multiple cycles
- Prevents fluid stagnation in complex systems
- Reduces maintenance costs from system fouling
Robotic Post-Processing
Delays robotic shutdown after accumulated operation time, completing post-processing tasks during intermittent production.
Key Benefits:
- Accumulates processing time across cycles
- Ensures complete finishing operations
- Optimizes robotic system efficiency
Furnace Cooldown Control
Manages cooling systems after accumulated heating time, ensuring safe temperature reduction during batch processing.
Key Benefits:
- Accumulates cooling time during heating cycles
- Prevents thermal shock to furnace components
- Extends equipment lifespan
Timing Sequence
Timing Operation:
Power applied – output(R) closes immediately
Control signal(S) applied – accumulation starts
Control signal(S) removed – accumulation pauses
When accumulated time reaches preset time (T) – output opens
Wiring
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-Bta1 | FCT18-Bta2 |
|---|---|---|
| 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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