Phoenix ETD Series Timer Relays: Industrial-Grade Timing Control Solutions - Application & Selection Guide

Core Positioning

The Phoenix ETD Series is a family of high-reliability industrial timer relays designed for precise timing sequence control in complex automation scenarios. Covering three functional sub-series (SL/FL/BL), these relays support multi-mode timing (on-delay, off-delay, pulse output, cyclic operation), wide voltage supply (24~240V AC/DC), and flexible connection options (push-in PT terminal/screw terminal). With timing ranges from 50ms to 300min, basic accuracy of ±1% and repeat accuracy of ≤0.5%±5ms, they excel in stability, anti-interference, and environmental adaptability. Widely used in mechanical engineering, chemical industry, power plants, and automated production lines, the ETD series serves as the "timing core" for process control, equipment interlocking, and sequential activation, ensuring safe and efficient operation of industrial systems.

Model Classification & Function Interpretation

1. ETD-SL Series: Multi-Functional Universal Timer Relays

Focused on versatile timing control with rich output modes, suitable for general industrial scenarios requiring multi-functional timing.

Model No. Core Functions Technical Highlights Application Scenarios
2866174 ETD-SL-2T-I 2-channel timing, pulse encoder integration, 8 operating modes 50ms~100h adjustable range, 2 floating PDT outputs, overvoltage category III Complex sequential control in automotive assembly lines (e.g., welding process timing + part feeding interlock)
2867924 ETD-SL-1T-S 1-channel timing, single-function optimization ±1% basic accuracy, 5A fast-blow output fuse, IP40 housing protection Simple on-delay control for packaging machinery (e.g., film sealing time regulation)
2866161 ETD-SL-1T-DTF 1-channel timing, 8 integrated functions 2 floating PDT outputs, 24~240V AC/DC wide supply, pollution degree 2 Process timing in chemical mixing equipment (e.g., additive injection delay + stirring cycle control)

2. ETD-FL Series: Specialized Dual-Channel Timer Relays

Engineered for dual-channel synchronous control, ideal for scenarios requiring coordinated timing of two independent processes.

Model No. Core Functions Technical Highlights Application Scenarios
2866187 ETD-FL-2T-DTI 2-channel independent timing, DTI trigger mode Dual PDT output channels, 3kV insulation test voltage, -25℃~55℃ operating temperature Coordinated control in logistics sorting systems (e.g., two-way conveyor belt start/stop delay)

3. ETD-BL Series: Voltage-Specific Timing Relays

Optimized for fixed-voltage (230V AC) applications, offering diverse timing modes and long-duration timing options, with push-in terminal convenience.

Model Category Key Models Core Functions Technical Highlights Application Scenarios
On-Delay Relays 2917586, 2901477, 2901476 1-channel on-delay, CC control mode 10S/300S timing ranges, PT push-in connection, SP special protection version Equipment warm-up control in power plants (e.g., boiler preheating 300S delay startup)
Off-Delay Relays 2917625, 2901486, 2917641 1-channel off-delay, CC control mode 10S/30MIN/300MIN long timing, 1 changeover contact Process hold control in chemical reactors (e.g., 30MIN post-reaction cooling delay)
Standard Voltage Relays 2905814, 2905813 1-channel universal timing (4 functions) 230V AC fixed voltage, 50ms~1h range, mechanical service life 15×10⁶ cycles General timing in building automation (e.g., ventilation system run-on delay)

Core Application Value

  • Precision Timing Assurance: With basic accuracy of ±1% and repeat accuracy ≤0.5%±5ms, the series ensures consistent process execution, critical for high-precision manufacturing (e.g., electronic component mounting timing).
  • Multi-Scenario Adaptability: 8 integrated functions (on-delay, off-delay, pulse output, cyclic operation, etc.) cover 90% of industrial timing needs, eliminating the need for multiple specialized modules.
  • Rugged Industrial Design: IP40 housing protection, overvoltage category III, and -25℃~55℃ operating temperature range enable stable operation in harsh environments (e.g., metallurgical plant high-temperature workshops, outdoor control cabinets).
  • Easy Installation & Maintenance: PT push-in terminals reduce wiring time by 50% (stripping length 8mm, conductor cross-section 0.14~2.5mm²), while green/yellow LED indicators enable quick status monitoring (power on/relay active).
  • High Safety & Reliability: 4kV insulation test voltage, 5A fast-blow output fuses, and UL 508 certification ensure protection against electrical faults, extending system service life.

Selection Guide

  1. Determine Timing Requirements:
    • Short-duration (50ms~1h): Choose ETD-SL/BL standard models (e.g., ETD-SL-1T-DTF for multi-function, ETD-BL-1T-230 for fixed 230V)
    • Long-duration (30MIN~300MIN): Select ETD-BL off-delay models (e.g., 2917641 ETD-BL-1T-OFF-CC-300MIN-SP)
  2. Confirm Channel Needs: 1-channel for single-process control (most BL/SL models); 2-channel for synchronous control (ETD-SL-2T-I, ETD-FL-2T-DTI)
  3. Voltage Matching: 24~240V AC/DC wide supply (SL/FL series); 230V AC fixed supply (BL series)
  4. Connection Type: PT push-in terminals (models with "-PT" suffix) for fast maintenance; standard terminals for vibration-prone environments
  5. Special Functions: CC control mode for current-triggered timing; SP suffix models for enhanced protection in high-interference scenarios

Installation & Usage Notes

  • Power Supply: Ensure voltage matches the model (230V AC for BL series; 24~240V AC/DC for SL/FL series), avoiding overvoltage damage (tolerance: ±10% AC, -15%~+10% DC).
  • Wiring Specifications: For PT push-in terminals, strip wires to 8mm; use 0.14~2.5mm² rigid/flexible conductors and tighten to recommended torque (0.5~0.8Nm).
  • Environmental Control: Install in IP20 control cabinets, avoiding direct exposure to moisture, dust, or corrosive gases; ensure ambient temperature within -25℃~55℃.
  • Status Monitoring: Green LED = power on; yellow LED = relay active. If LEDs fail to illuminate, check power supply and wiring connections.
  • Maintenance: Regularly inspect terminal tightness and output fuse integrity; replace relays if mechanical service life (15×10⁶ cycles) or electrical service life (1×10⁵ cycles) is exceeded.

Phoenix ETD Series Timer Relays: Industrial-Grade Timing Control Solutions - Application & Selection Guide

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Created on：2025-11-26 11:50

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