FCT18-BD Industrial Double Interval Time Relay
Dual Timing Control with Control Signal Functionality
Product Overview
The FCT18-BD is a sophisticated double interval time relay with control signal functionality, engineered for complex industrial timing applications. This relay provides two precise timing intervals triggered by the application and removal of the control signal. With its compact 18mm DIN rail design, universal voltage input (12-240V AC/DC), and exceptional accuracy (±0.1%), the FCT18-BD delivers reliable dual-timing control for demanding industrial automation systems.
Key Technical Advantages
Universal Voltage Input
Operates with 12-240V AC/DC, compatible with global industrial power standards.
Dual Timing Intervals
Provides two independent timing sequences controlled by signal application and removal.
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.
High-Capacity Output
16A C/O contacts (1 or 2 sets) for industrial loads.
Button Setting & Locking
Precision time setting via tactile buttons with locking protection to prevent accidental changes.
Industrial Application Scenarios
The FCT18-BD double interval relay excels in scenarios requiring two distinct timing sequences triggered by control signal application and removal. Below are key applications where its dual-timing functionality delivers superior performance:
Equipment Cooling Systems
Applies cooling immediately after shutdown (T1) and activates secondary cooling phase (T2) after equipment cools to safe levels.
Key Benefits:
- Optimizes cooling efficiency with dual-phase approach
- Prevents thermal shock by staging cooling intensity
- Reduces energy consumption by 25%
Automated Assembly Lines
Controls primary assembly sequence (T1) when activated and secondary inspection sequence (T2) when deactivated.
Key Benefits:
- Coordinates complex multi-stage processes
- Ensures quality control after assembly
- Reduces cycle time by 15%
Safety Lockout Systems
Activates primary safety lock (T1) immediately and secondary verification lock (T2) after personnel clearance.
Key Benefits:
- Two-stage safety confirmation
- Prevents accidental reactivation during maintenance
- Complies with ISO 13849 safety standards
Chemical Dosing Systems
Controls primary chemical injection (T1) when activated and neutralizing agent (T2) when deactivated.
Key Benefits:
- Precise chemical reaction control
- Automated neutralization for safety
- Reduces waste by 30%
Water Treatment Systems
Activates primary filtration (T1) when enabled and backwash cycle (T2) when disabled.
Key Benefits:
- Automated filter maintenance cycle
- Optimized water treatment efficiency
- Extended filter lifespan
Conveyor Sequencing
Starts primary transport (T1) when activated and secondary positioning (T2) when deactivated.
Key Benefits:
- Precise material positioning
- Reduced product damage
- Throughput increase of 20%
Timing Sequence
Dual-Timing Operation:
Wiring Diagram
Connection Guide:
Standard DIN rail mounting with screw terminals for secure industrial connections:
- A1/A2: Power supply terminals (12-240V AC/DC)
- S: Control signal input
- 11/12/14 & 21/22/24: Output contacts (C/O)
- T1/T2: Timing interval adjustment
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-BD1 | FCT18-BD2 |
|---|---|---|
| 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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