GE DS3820LT4A1C1A LodTrak IV Model A Motor Protection Module

If you have other questions,please contact sales manager Frida

Mobile /WhatsApp: +86 15359408275
Email: sales5@mooreplc.com

Product Overview

The GE DS3820LT4A1C1A belongs to the LodTrak IV Model A motor protection family. It monitors AC motor current through current transformers and temperatures through RTDs, comparing those readings with programmed protection settings. When a monitored condition exceeds its setpoint, the module can issue an alarm or trip response. Model A combines overcurrent, ground-fault, current-unbalance and temperature protection with a front-panel display for motor readings.

Technical Specifications

Key Highlights

• Multifunction protection for AC motors.
• Current-transformer and RTD monitoring.
• Ten RTD inputs: six winding, two motor-bearing and two load-bearing.
• Adjustable alarm and trip points.
• 32-character alphanumeric display.

Model Benefits

• Broader motor coverage: Combines electrical-current and temperature monitoring in one module.
• Earlier fault visibility: Adjustable alarms can signal a developing condition before a selected trip point.
• Useful operating readouts: The display shows values including line current, RTD temperature and ground current.

Frequently Asked Questions

1. What does the DS3820LT4A Model A protect against?
GE lists time and instantaneous overcurrent, ground faults, current unbalance, load jam, load loss and current-based phase faults among its protective functions.
2. How many RTD inputs does Model A provide?
It provides ten: six for motor windings, two for motor bearings and two for load bearings.
3. Does Model A include RS-422 communication or voltage-input protection?
GE’s comparison table lists RS-422 communication for Models C and E, and voltage-input protection for Model E—not Model A.
4. What control power does the module accept?
The GE catalog lists nominal 120 V AC or 125 V DC control power, with operating ranges of 80–130 V AC and 90–150 V DC

Industries Served

• Manufacturing: Protects motors driving conveyors, compressors and production machinery.
• Water and wastewater: Applies to motor-driven pumps and other continuously operated equipment.
• Oil and gas: Supports protection of motors used in pumping and processing operations.
• Power generation: Provides motor protection for auxiliary plant equipment.

Company Profile