1 4

GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay
SKU: SR489-P5-LO-A20-E

  • Manufacturer: GE Fanuc Multilin

  • Product No.: SR489-P5-LO-A20-E

  • Condition：In stock

  • Product Type: Generator Protection Relay

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 3600g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The GE Multilin SR489-P5-LO-A20-E is a compact, cost-effective draw-out protection system designed for small to medium-sized synchronous/induction generators (25–60 Hz). It integrates advanced protection, monitoring, and metering with a 5A phase CT input (P5), low-range control power (LO: 24–60V DC/20–48V AC), 4–20mA analog outputs (A20), and an enhanced display/keypad (E module). Ideal for primary/backup protection in cogeneration and industrial applications, it ensures reliable generator operation while minimizing downtime.

Features

  • Comprehensive Protection:
    • Stator differential (dual-slope CT saturation immune), 100% stator ground fault (third harmonic adaptive), loss of excitation (negative mho), reverse power, and breaker failure detection.
    • Backup phase distance protection with transformer compensation.
  • Advanced Monitoring:
    • 12 RTD inputs for stator/bearing temperature (voting feature for redundancy).
    • 4 analog inputs for vibration monitoring (0–20mA/4–20mA configurable).
    • Real-time metering: current, voltage, power, energy, frequency, and power factor.
  • Flexible Communications:
    • RS232, 2x RS485 (Modbus RTU/DNP 3.0), and optional 10BaseT Ethernet (Modbus TCP/IP).
    • IRIG-B time synchronization for event logging (1ms accuracy).
  • User-Friendly Interface:
    • 40-character sunlight-readable LCD with keypad for local configuration.
    • 22 LED indicators for relay status, generator health, and output relay states.
  • Rugged Design:
    • Draw-out construction for quick maintenance (minimized downtime).
    • Harsh environment conformal coating option for chemical resistance.

Technical Specifications

  • Current Inputs (P5):
    • 5A CT secondary, 0.02–20x CT range, ±0.5% accuracy at <2x CT, ±1% at >2x CT.
    • CT withstand: 80x rated current (1s), 40x (2s), 3x continuous.
  • Voltage Inputs:
    • VT ratio 1.00–240.00:1, 200V AC (phase), 100V AC (neutral), ±0.5% accuracy.
    • Max continuous voltage: 280V AC.
  • Power Supply (LO):
    • 24–60V DC / 20–48V AC (48–62Hz), 25VA typical, 45VA max.
  • Analog Outputs (A20):
    • 4–20mA, ±1% accuracy, 1200Ω max load.
  • Output Relays:
    • 6 Form C contacts (10A/30VDC resistive, 10A/120VAC resistive), 10ms operate time.
  • Communications:
    • RS485: 300–19,200 baud, isolated at 36Vpk.
    • Ethernet (optional): 10Mbps copper, Modbus TCP/IP.
  • Environmental:
    • Operating temp: -40°C to +60°C.
    • Humidity: 95% non-condensing.
    • Altitude: ≤2000m.
  • Certifications:
    • UL508, UL1053, CE, CSA, ISO9001 compliant.
Order and Warranty Information

Terms of Purchase and Returns

Detailed guidelines on minimum order quantity, delivery times, payment options, warranty, and return policies.

Check now

We gladly accept bulk orders, with a minimum order quantity of just one unit.

Upon request, we can provide all necessary documents, including Certificates of Origin/Conformance and other required export paperwork.

We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% payable before shipment. For RMB transfers, please contact us if you have an agent in China.

All new and original items come with a standard one-year warranty. For extended warranty options, feel free to contact us for pricing details.

We prioritize your satisfaction. If you need to return an item, it must be done within 30 days of purchase. The product must be unused, unopened, and in its original packaging, including all accessories. Refunds will be processed within 5-7 business days of receiving the return. Please note, shipping and handling charges are non-refundable.
Check now

Product comparison

GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay
GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay
GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay
GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay
Current product Current
GE Fanuc Multilin

GE Multilin|SR489-P5-LO-A20-E|Generator Protection Relay

Options
In stock
Descriptions

Description

The GE Multilin SR489-P5-LO-A20-E is a compact, cost-effective draw-out protection system designed for small to medium-sized synchronous/induction generators (25–60 Hz). It integrates advanced protection, monitoring, and metering with a 5A phase CT input (P5), low-range control power (LO: 24–60V DC/20–48V AC), 4–20mA analog outputs (A20), and an enhanced display/keypad (E module). Ideal for primary/backup protection in cogeneration and industrial applications, it ensures reliable generator operation while minimizing downtime.

Features

  • Comprehensive Protection:
    • Stator differential (dual-slope CT saturation immune), 100% stator ground fault (third harmonic adaptive), loss of excitation (negative mho), reverse power, and breaker failure detection.
    • Backup phase distance protection with transformer compensation.
  • Advanced Monitoring:
    • 12 RTD inputs for stator/bearing temperature (voting feature for redundancy).
    • 4 analog inputs for vibration monitoring (0–20mA/4–20mA configurable).
    • Real-time metering: current, voltage, power, energy, frequency, and power factor.
  • Flexible Communications:
    • RS232, 2x RS485 (Modbus RTU/DNP 3.0), and optional 10BaseT Ethernet (Modbus TCP/IP).
    • IRIG-B time synchronization for event logging (1ms accuracy).
  • User-Friendly Interface:
    • 40-character sunlight-readable LCD with keypad for local configuration.
    • 22 LED indicators for relay status, generator health, and output relay states.
  • Rugged Design:
    • Draw-out construction for quick maintenance (minimized downtime).
    • Harsh environment conformal coating option for chemical resistance.

Technical Specifications

  • Current Inputs (P5):
    • 5A CT secondary, 0.02–20x CT range, ±0.5% accuracy at <2x CT, ±1% at >2x CT.
    • CT withstand: 80x rated current (1s), 40x (2s), 3x continuous.
  • Voltage Inputs:
    • VT ratio 1.00–240.00:1, 200V AC (phase), 100V AC (neutral), ±0.5% accuracy.
    • Max continuous voltage: 280V AC.
  • Power Supply (LO):
    • 24–60V DC / 20–48V AC (48–62Hz), 25VA typical, 45VA max.
  • Analog Outputs (A20):
    • 4–20mA, ±1% accuracy, 1200Ω max load.
  • Output Relays:
    • 6 Form C contacts (10A/30VDC resistive, 10A/120VAC resistive), 10ms operate time.
  • Communications:
    • RS485: 300–19,200 baud, isolated at 36Vpk.
    • Ethernet (optional): 10Mbps copper, Modbus TCP/IP.
  • Environmental:
    • Operating temp: -40°C to +60°C.
    • Humidity: 95% non-condensing.
    • Altitude: ≤2000m.
  • Certifications:
    • UL508, UL1053, CE, CSA, ISO9001 compliant.