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Technical specification Manual 3D drawing

Automation

Phase Failure Phase Reversal Three-Phase Protection Relay DFF

CÓD: DFF3-460

Description

Three-phase protection relay for monitoring phase loss and phase reversal, as well as undervoltage and overvoltage. Ensures safety and stability in industrial electrical systems. Features configurable settings and visual operation indication. Ideal for 220/460VAC networks.

  • Protection against phase loss and phase reversal
  • Application in three-phase systems
  • Status indication via LEDs
  • Standard DIN rail installation

General specifications
ModelDFF3-460
Phase sequence●
Phase loss●
StandardsIEC / EN60255-6, IEC / EN61010-1
FunctionMonitor of voltage tripolar
Monitoring terminalsL1 - L2 - L3
Power terminalsL1 - L2
Power supply176 ~ 552V (F-F / P-P)
Frequency45 ~ 65Hz
Overvoltage adjustment limitsNot included
Undervoltage adjustment limitsNot included
AssimetriaNot included
Hysteresis2%
Delay timeNot included
Erro≤1%
Accuracy in the button of adjustment1% of full scale
Start-up delay0.5s
Power-on indicationGreen LED
Output indicationRed LED
Reset time1s
Output1 changeover (SPDT) relay
Current ratings10A - AC1
Switching voltage (max.)250VAC / 24VDC
Temperature coefficient0.05% / °C, ta = 20°C
Mechanical life10 x 10⁶ operations
Electrical life (AC1)10⁶ operations
Operating temperature-20 ~ 55°C
Storage temperature-35 ~ 75°C
MountingDIN rail mounting
Degree of protectionIP44 (front) / IP20 (terminals)
Overvoltage categoryIII
Pollution degree2
Dimensions90 x 18 x 64mm