RET615

Overview

• Model: RET615
• Type: Transformer Protection and Control Relay

Design & Dimensions

• Compact Unit: Part of ABB’s Relion® 615 series
• Width: 177 mm (Frame), 164 mm (Case)
• Height: 177 mm (Frame), 160 mm (Case)
• Depth: 201 mm (153 + 48 mm)
• Weight: 4.1 kg (Complete Relay), 2.1 kg (Plug-in Unit)

Electrical Specifications

• Auxiliary Voltage:
  • Type 1: 100-240 V AC, 50/60 Hz
  • Type 2: 24-250 V DC
• Power Consumption: 31.0-570.0 mW
• Start-Up Threshold: 19.2 V DC
• Voltage Range: ±20% of rated voltage

Current & Voltage Inputs

• Current Inputs: Rated at 1/5 A
  • Thermal Withstand: 20 A continuous, 500 A for 1 second
  • Dynamic Withstand: 1250 A (half-wave)
• Voltage Inputs: Rated at 60-210 V AC
  • Voltage Withstand: 240 V AC continuous, 360 V AC for 10s
  • Burden: <0.05 VA at rated voltage

Auxiliary Supply & Power Details

• Auxiliary Voltage Variation:
  • Type 1: 38-110% of Un
  • Type 2: 50-120% of Un (DC)
• Max Interruption: 50 ms (no reset)
• Operating Range: ±20% of rated voltage

Performance Characteristics

• Reaction Time: <3 ms
• Threshold Voltage: 16-176 V DC
• Current Drain: 1.6-1.9 mA

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