GE DS3820LT4A Protective Module

The General Electric DS3820LT4A1C1A, also cataloged as the DS3820LT4A LoadTrak IV Protective Module, operates as a dedicated hardware component for motor monitoring and system protection within GE Mark IV Speedtronic control platforms.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Communication Velocity and Deterministic Networks

• The General Electric DS3820LT4A1C1A maintains real-time monitoring execution across industrial control buses to preserve communication velocity and fast fault reporting.
• Internal protective logic executes deterministic trip algorithms upon detection of phase imbalances, ground faults, or motor jamming conditions.
• Hardware-level signal conditioning ensures low-latency execution and reliable I/O density scaling across Mark IV protective loops.
• Module firmware flash compatibility allows synchronized alarm processing and status transmission back to primary Speedtronic controllers.

Frequently Asked Questions

Q: Can wiring connections be altered on the side-mounted terminal block while power is applied?

A: No, all auxiliary control and field sensor circuits connected to the 19 side-mounted terminals must be de-energized prior to wire termination or adjustment.

Q: How are protection parameters and threshold values configured on the DS3820LT4A1C1A?

A: Protection thresholds are set directly via the integrated front-panel display using the 5-key operator interface.

Field Installation Guidelines

Ensure that main power to the control cabinet and motor starter circuits is completely isolated before beginning installation. Cut or verify the panel cutout dimensions according to standard Mark IV mounting specifications and insert the DS3820LT4A1C1A unit securely. Fasten all mounting brackets to lock the frame against industrial vibration. Strip field leads to the correct length and secure them to the 19 side-mounted terminals using calibrated screwdriver torque to prevent loose connections. Ground all cable shields at a single chassis ground point to prevent stray electrical noise from interfering with protection logic.