Deskripsi
Phase Sequence Detection Module
• Type: Phase sequence detection module
• Model: XXJC‑1702
• Brand : Changzhou Power Plant Auxiliary Equipment Factory Co., Ltd.
Product Overview:
The XXJC‑1702 is a phase sequence and phase loss detection module designed for three‑phase electric actuator systems. It ensures that the incoming three‑phase power supply is in the correct sequence and that no phase is missing before allowing the actuator motor to operate. This prevents reverse rotation, mechanical damage, and operational faults in critical valve control applications.
Specifications (typical for this module class from Changzhou):
| Parameter | Specification |
|---|---|
| Rated Voltage | 3‑phase AC 380V (±10%) |
| Frequency | 50 Hz (±5%) |
| Detection Functions | Phase sequence detection, phase loss detection |
| Output | Relay contact output (SPDT), typically 5A @ 250VAC |
| Response Time | <200 ms |
| Indication | LED indicators for correct/incorrect phase sequence |
| Operating Temp | −25 °C to +55 °C |
| Humidity | ≤95% RH (non‑condensing) |
| Insulation Resistance | ≥100 MΩ |
| Dielectric Strength | 2 kV for 1 min between input and output |
Dimensions & Weight:
- Dimensions: Approx. 90 × 70 × 40 mm (PCB + enclosure)
- Weight: ~150–250 g
Applications:
- Electric actuator control boxes (multi‑turn and quarter‑turn)
- Power plant valve automation
- Water treatment and pumping stations
- Petrochemical process control
- HVAC and industrial ventilation systems
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