Description
GE SR489-P5-H1-A20
The GE SR489-P5-H1-A20 is a motor protection relay from the Multilin SR-400 series, designed to provide comprehensive protection, monitoring, and control for industrial motors. Below are its key technical parameters:
General Specifications:
- Model: SR489-P5-H1-A20
- Series: Multilin SR-400
- Type: Microprocessor-based motor protection relay
- Application: Medium to large AC motors
Electrical Ratings:
- Supply Voltage (Auxiliary):
- Standard: 85–265V AC/DC (wide range) or 20–60V DC (optional)
- Frequency: 50/60 Hz (±10%)
- Burden (Current Inputs): < 0.2 VA per phase
Current Inputs:
- Rated Current (Phase & Neutral): 1A or 5A (configurable)
- Continuous Current Withstand: 4 × rated current
- Short-Time Withstand (1 sec): 100 × rated current
Protection Features:
- Overload (Thermal Model):
- Adjustable pickup, curve, and reset settings
- Short Circuit (Instantaneous & Time-Delayed):
- Adjustable pickup & time delay
- Ground Fault Protection:
- Sensitive ground fault (50G/51G)
- Residual or zero-sequence CT input
- Phase Unbalance & Negative Sequence:
- Protects against motor overheating due to unbalance
- Locked Rotor / Stalled Motor:
- Adjustable start timer & stall protection
- Undercurrent / Underpower:
- Prevents running without load
- Restart Inhibit & Jam Protection
- RTD (Thermistor) Inputs (Optional):
- For direct motor temperature monitoring
Control & Monitoring:
- Digital Inputs: 6 programmable inputs (24–250V DC/AC)
- Relay Outputs: 6 programmable Form-C contacts (5A, 250V AC/30V DC)
- Communication:
- RS-485 Modbus RTU (Standard)
- Optional Profibus DP, DeviceNet, or Ethernet
- Metering & Diagnostics:
- Real-time current, voltage, power, energy, thermal capacity used, etc.
- Event recording & oscillography
Environmental & Mechanical:
- Operating Temperature: -20°C to +60°C (-4°F to +140°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 0–95% (non-condensing)
- Enclosure: DIN rail or panel mount (IP40 typical)
Certifications & Standards:
- UL 508 (Industrial Control Equipment)
- CE Marked (EU Compliance)
- IEC 60255 (Protection Relays)
Typical Applications:
- Industrial motors (pumps, fans, compressors)
- Mining, oil & gas, water/wastewater
- HVAC & critical infrastructure
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Main Brand:
ABB Allen-Bradley Alstom Bently Emerson Foxboro
GE Schneider MOOG HIMA Woodward Honeywell
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•Package: Original packing with cartons
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About Us
Xingchuang Ronghe (Fuzhou) Electrical Equipment Co., Ltd. is a professional company specializing in international trade. We have rich industry experience and extensive customer resources, and can provide personalized trade solutions for customers.
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