Description
📌 Product Overview
The GE Multilin 139 (Model: 139-H51AB01110100D-GF8YA with FLC-120 ohm configuration) is a compact, microprocessor-based motor protection relay designed by General Electric to deliver dependable thermal overload protection, monitoring, and diagnostic control for low-voltage AC induction motors.
📋 Technical Specifications Datasheet
- Brand: GE Multilin (General Electric)
- Model: 139-H51AB01110100D-GF8YA (FLC-120 Ohm)
- Series: Multilin 139 Motor Protection Series
- Product Name: Motor Protection Relay
- Manufacturing Origin: United States
- Product Status: Industrial Protection Standard
- Dimensions: Compact panel-mount or DIN-rail enclosure form factor
- Weight: Approximately 1.5 kg
- Original Equipment Manufacturer: GE Multilin
- Power Supply Rating: Standard low-voltage industrial control power input
⚙️ Operating Norms and Usage
- Observe strict electrostatic discharge (ESD) safety protocols, utilizing a grounded wrist strap when handling the relay.
- Mount the relay securely within a protective motor control center (MCC) cabinet or enclosure panel.
- Verify all current transformer (CT) leads, auxiliary control power wiring, and trip circuit connections against the specific wiring diagram prior to system startup.
⚡ Power-On / Power-Off Sequence
- Power-On Sequence: Confirm that external CT shorting blocks are removed, energize the auxiliary control power feed, and verify that the relay display and indicators initialize normally without active fault codes.
- Power-Off Sequence: Disable motor control circuits, disconnect the auxiliary control power supply source, and engage CT shorting links before performing physical maintenance or relay extraction.
📖 Product Usage Instructions
- Monitor real-time motor operational data, status indicators, and trip logs directly via the front-panel interface and LED indicators.
- Utilize GE Multilin setup and configuration software via the communication port to tailor thermal models, overload curves, and trip parameters to the specific motor.
- Routinely test digital inputs, trip relay outputs, and sensor connections as part of your scheduled facility maintenance program.
❓ Common Questions & Answers Q&A
- Q: What does a thermal overload trip indication signify?
A: It indicates that the motor has accumulated excessive thermal capacity based on its running current profile; allow the motor to cool fully before attempting a reset.
- Q: Can the relay settings be modified while the motor is running?
A: Certain monitoring parameters can be viewed, but core protection setpoints generally require authorized offline configuration to ensure operational safety.
Recommended Alternative Series & Models
- GE Multilin Relay: 369-LO-R-0-0-0-0
- GE Multilin Relay: SR239-1-0-0-0
- GE Multilin Relay: SR350-P1-HI-A20
- GE Multilin Relay: SR469-P1-HI-A20
- GE Multilin Relay: SR750-P1-G1-S1-HI-A20-R-E-H
- GE Mark VIe Module: IS420UCSCH1A
- GE Drive Board: 531X301DCCAFG2
- GE Terminal Board: 531X305NTBAPG1
- GE Voltage Board: DS200NATOG1A
- GE Auxiliary Board: DS200ADGIH1AAA
