LS Electric America

Recent Articles
Understanding ETM Trip Unit (Current and Power Ranges)
The ETM trip unit requires an external 24V DC control power supply to power the display and enable Modbus communication. Without this control power, neither the LCD nor the communications will function. With control power applied, the trip unit will ...
User Jack Circuit Assembly (Part Numbers by Application)
Below are the circuit assembly part numbers and their respective applications. Please note that connector specifications vary depending on the VCB model, so it is necessary to check the exact VCB type before applying. 1. Part Numbers and Applications ...
Connector Types for Susol VCB
This article summarizes the different connector types used in Susol VCB products, with images, characteristics, and application notes.
TE Connectivity AMP 172773-1 Terminal – Specifications & Application Guide
Manufacturer Information Manufacturer: TE Connectivity (AMP Brand) Part Number: 172773-1 Category: Crimp Terminal / Contact Application: Used in connector housings for signal and low-current power transmission
VCB Front Cover Paint Information
This article provides reference for the paint color and finish used on the front cover of the VCB (Vacuum Circuit Breaker) installed in medium voltage switchgear. Specification Overview Application Area: VCB front metal cover Color: Custom grey ...

Popular Articles
3 pole MCCB on a single phase system
LS UL489 Molded Case Circuit Breakers (MCCB’s) are suitable for use in single phase systems. LS Susol UTE/UTS 3 pole MCCBs may be applied to single phase systems provided that the MCCB is sized appropriately per the given load. Furthermore, the MCCB ...
What is the difference between differential and non-differential overloads?
For overloads, differential and non-differential types differ in how they trip (release). Differential is considered to be a higher sensitivity relay as it has phase failure detection. When a difference between two or more of the phases exceeds the ...
What is the difference between LTB-32 and TB-32?
LTB-32 and TB-32 are both terminal block accessories for MMS-32AF's. The LTB-32 Item # 62671941111, can be used with a phase bus setup for connecting multiple MMSs to the same power source. LTB Type Phase Bus Setup The TB-32 cannot be used with a ...
What is a mechanical latch (ML) option for contactors?
A mechanical latch allows a normally open (NO) contactor to remain closed without continuously energizing the coil. To open the contactor the mechanical latch is energized with a short pulse. See below reference on available voltages and various MC ...
How do I order a reversing contactor?
A reversing contactor is simply two contactors interlocked. One contactor runs the motor in the forward direction while the other runs the motor in the reverse direction. The contactors are mechanically and sometimes electrically interlocked. ...

LS Electric America | Home

Recent Articles

Understanding ETM Trip Unit (Current and Power Ranges)

User Jack Circuit Assembly (Part Numbers by Application)

Connector Types for Susol VCB

TE Connectivity AMP 172773-1 Terminal – Specifications & Application Guide

VCB Front Cover Paint Information

Popular Articles

3 pole MCCB on a single phase system

What is the difference between differential and non-differential overloads?

What is the difference between LTB-32 and TB-32?

What is a mechanical latch (ML) option for contactors?

How do I order a reversing contactor?