GE Multilin LM10 Modular Device

Short Description:

The GE Multilin LM10 low-voltage motor protection system is a modular device dedicated to the protection of low-voltage motors. Featuring a compact and sophisticated design

FOB Price: US $0.5 - 9,999 / Piece

Min.Order Quantity: 100 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Month

Brand: GE

Manager: Jinny

E-mail: sales5@xrjdcs.com

Tel: + 86-15359273791

( WhatsApp )Wechat: + 86-15359273791

Warranty: one year

In stock: In stock

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GE Multilin LM10

1. Overview

The GE Multilin LM10 low-voltage motor protection system is a modular device dedicated to the protection of low-voltage motors. Featuring a compact and sophisticated design, it serves as an ideal protection solution for Low-Voltage Motor Control Centers (MCCs). In addition to MCC applications, the system can also be deployed independently for low-voltage motor protection. The LM10 is factory-equipped with the DeviceNet protocol, enabling users to remotely control and monitor motor operating status via network connections.

2. Product Features

Feature	Description
Modular Design	Users can select required components according to specific application scenarios and functional demands, supporting flexible configuration and personalized deployment.
Compact Size	The miniaturized structure allows seamless installation in standard Motor Control Center buckets, saving cabinet space and adapting to diverse on-site installation environments.
Easy Configuration	Professional configuration and parameter setting can be completed efficiently and conveniently via the EnerVista software, reducing debugging difficulty and shortening project commissioning time.
Pre-configured Settings	Preloaded standard motor protection setting values are available, supporting rapid on-site installation and commissioning to meet conventional motor protection operation requirements.
PLC Compatibility	Compatible with most mainstream PLC devices in the industry, supporting seamless integration with SCADA and DCS industrial control systems to realize centralized monitoring and automatic control.
Equipment Replacement Function	It can replace multiple traditional discrete devices, including PLC I/O modules, time relays, load detection relays, ground fault relays, ammeters, power meters, and operating time recorders, simplifying on-site equipment layout and reducing operation and maintenance costs.

3. Technical Parameters

3.1 Protection Function Parameters

Protection Function	Parameter Range / Description
Ground Fault [50G]	Trip current range: 0-4.2A; Real-time continuous monitoring of ground current is supported through PDU or network communication.
Overvoltage / Undervoltage [59, 27]	The maximum and minimum voltage trip thresholds are set to 117% of the nominal voltage; the trip response time is approximately 250ms; this function is non-cancellable and provides permanent voltage protection.
Overcurrent Protection	Supports real-time phase current monitoring and reliable overcurrent protection for motors to avoid equipment damage caused by excessive current.
Current Unbalance Protection	Accurately monitors three-phase current unbalance of motors and triggers protection actions to prevent motor burnout caused by unbalanced operation.
Mechanical Stall Protection	Effectively protects motors from mechanical stall faults and avoids equipment damage caused by locked rotor operation.
Stall Protection	Monitors motor operating status in real time and prevents continuous stall operation of motors under abnormal load conditions.
Load Loss Protection	Realizes real-time monitoring of motor load loss faults and triggers corresponding protection mechanisms to ensure safe equipment operation.
Power-off Restart Function	Supports automatic restart operation after accidental power failure, ensuring continuous and stable operation of the production system.
Historical Records	Able to record the latest 10 motor trip events, facilitating fault query, analysis and on-site maintenance.

3.2 Hardware Configuration

Item	Specification
Digital Input	6 digital input channels
Relay Output	4 relay output channels
Sampling Mode	6-channel simultaneous sampling A/D converter
Monitoring Parameters	Three-phase current, single-phase voltage, ground wire current, phase current, ground current, operating voltage, kilowatt power, power factor and other core operating parameters
Communication Ports	Built-in DeviceNet interface + auxiliary communication port (for PDU connection)
Indicator Lights	5 LED indicator lights, used to display module operating status, network connection status, overcurrent faults and other working conditions

4. Structure and Composition

4.1 Basic Unit Structure

4.1.1 Main Protection Unit

Equipped with a 6-channel simultaneous sampling A/D converter and on-board signal conditioning circuit, it realizes high-precision data acquisition of three-phase current, single-phase voltage and ground wire signals. Adopts non-volatile memory to stably store motor trip event data, ensuring no loss of fault records after power failure.

4.1.2 Programmable Display Unit (PDU)

The LM10 Programmable Display Unit (PDU) is an optional accessory. It can be connected to the main protection unit through an RJ11 connector, supporting on-site local programming, parameter configuration and real-time operating data monitoring. It can intuitively display all internal operating data and fault information of the relay.

4.1.3 Interface Module

Integrates a standard DeviceNet communication interface, which supports daisy-chain connection to facilitate multi-device networking deployment. Equipped with an independent auxiliary communication port, specially used for stable connection and data interaction with the PDU display unit.

4.1.4 Matching CT Components

Support customized matching three-phase current transformers (CTs) for three-phase current signal acquisition. A dedicated ground CT can be additionally purchased as a supporting component to realize accurate monitoring of ground fault current.