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

Main Brand:
ABB Allen-Bradley Alstom Bently GE MOOG
Schneider Woodward HIMA Honeywell Emerson Foxboro
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FAQ
Q:What is the earliest time when you can make delivery?
A:We will make delivery once received your payment.
Q:If the product can’t work, can it be returned?
A:We provide one year warranty.
Q:How easy is it to obtain items?
A:New are no longer continuously manufactured, and therefore supply is scarce.
However, at SAUL we specialize in sourcing hard-to-find products, and although
the lead time varies, the average is between 5-7 business days.
Q:What is the typical price for the items?
A:SAUL ELECTRIC always gives customers excellent service and prices that
are highly competitive.Requirements for delivery and availability do affect pricing.
Introduction to SAUL ELECTRIC:
SAUL ELECTRIC is a leading supplier specializing in industrial automation PLC modules and control systems. Committed to helping customers improve productivity, reduce downtime, and provide high-quality services and diversified projects.
Main advantages:
- Integrating multiple renowned brands: SAUL ELECTRIC integrates multiple renowned brands in the field of industrial automation, providing customers with a wide range of product choices and high-quality solutions.
- Excellent Service: SAUL ELECTRIC is committed to providing customers with excellent service, including professional technical support, fast response, and reliable delivery.
- Diversified projects: SAUL ELECTRIC has rich project experience and can provide customized solutions to meet the needs of different customers.
- Professional service team: SAUL ELECTRIC has an experienced professional team that can provide customers with the most effective solutions.
The mission of SAUL ELECTRIC is to help customers improve productivity, reduce downtime, and provide high-quality services and diversified projects. SAUL ELECTRIC is your trusted partner !















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