Eaton LES3600LS User Manual

Instructions for the Digitrip RMS 310 3 - Pole and 4 - Pole Trip Unit Installation
and Operation with L
- Frame and MDL - Frame Series C Circuit Breakers
Table of Contents
Description Page
1 .O General Information ............................................... 1
1.1
Protection .............................................................. 1
2.0
UL Listed Devices .................................................. 2
3.0
Installation ............................................................. 2
3.1
Preparation (All Trip Units) ..................................... 2
3.2
4 - Pole Trip Unit Installation ..................................... 2
3.3
Ground Fault Trip Unit Installation .......................... 3
3.3.1
General .................................................................. 3
3.3.2
Installation ............................................................. 3
3.4
3.5
4.0
4.1
4.2
4.3
4.4
5.0
5.1
5.2
5.3
5.4
5.5
5.6
6.0
6.1
6.2
3 - Pole (Non - Ground Fault) Trip Unit Installation ..... 5
Final Installation Instructions (All Trip Units) ........... 6
Principle of Operation ............................................ 6
General .................................................................. 7
Overload Trip ......................................................... 7
Short Delay/lnstantaneous Trip .............................. 7
Ground Fault Protection ......................................... 7
Protection Settings ................................................. 7
General .................................................................. 7
Short Delay Pick - up Settings ................................. 7
Short Delay Time Settings ..................................... 7
Instantaneous Pickup Setting ................................ 7
Ground Fault Pick - up Setting ................................. 7
Ground Fault Time Settings ................................... 8
Testing ................................................................... 8
Functional Field Testing ......................................... 8
Performance Testing for Ground Fault Trip Units .... 8
-
6.2.1 Code Requirements ............................................... 8
6.2.2
Standards Requirements ....................................... 9
6.2.3 General Test Instructions ....................................... 9
7.0 Rating Plug .......................................................... 12
8.0
References .......................................................... 12
8.1
Series C L - Frame Molded Case
Circuit Breakers
................................................... 12
8.2
Internal Accessories ............................................ 12
PRESENT BEFORE PROCEEDING WITHTHETASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES.
MISAPPLICATION
OR MISINSTALLATION OF ITS
PRODUCTS.
CUTLER
- HAMMER IS NOT LIABLE FORTHE
The user is cautioned to observe all recommendations,
warnings, and cautions relating to the safety of personnel
and equipment as well as all general and local health and
safety laws, codes, and procedures.
The recommendations and information contained herein
are based on Cutler
- Hammer experience and judgement,
but should not be considered to be all
- inclusive or cover -
ing every application or circumstance which may arise. If
any questions arise, contact Cutler
- Hammer for further
information or instructions.
Fig. 1 Digitrip RMS 310 Trip Unit for 3 - Pole L - Frame &
MDL Frame Series C Circuit Breaker
1 .O GENERAL INFORMATION
A
A WARNING
DEATH, SEVERE PERSONAL INJURY, OR
SUBSTANTIAL PROPERTY DAMAGE CAN RESULT
FROM CONTACT WITH ENERGIZED EQUIPMENT. DO
NOT ATTEMPT INSTALL
OR PERFORM
MAINTENANCE ON EQUIPMENT WHILE IT
IS
ENERGIZED. ALWAYS VERIFY THAT NO VOLTAGE IS
1.1 Protection
The Digitrip RMS 31 0, illustrated in Figure 1, is an elec -
tronic trip unit that incorporates a microprocessor - based
custom application specific integrated circuit design for
use with Series C L
- Frame and MDL Frame Molded Case
Circuit Breakers.
The Digitrip RMS
310 provides true RMS current sensing
for proper correlation with thermal characteristics of
conductors and equipment. Interchangeable rating plugs
Effective March 2003 Supersedes I.L. 29C615D dated July 1998 EATON
I.L. 29C615E
Courtesy of NationalSwitchgear.com

Eaton LES3600LS Specifications

General

Number of Poles	3
Frequency	50/60 Hz
Humidity	5% to 95% non-condensing
Cooling	Natural Convection
Voltage	600V
Input Voltage	600V
Operating Temperature	-40°C to 70°C
Storage Temperature	-40°C to 85°C
Certifications	UL

Summary

General Information and Safety

Product Overview and Safety Guidelines

Introduces the Digitrip RMS 310 trip unit, emphasizing safety procedures and liability.

Installation Procedures

Preparation for Trip Unit Installation

Procedure for inspecting and installing the trip unit and rating plug.

4-Pole Trip Unit Installation

Steps for installing a 4-pole trip unit, including screw torque and secondary winding connector.

Ground Fault Trip Unit Installation

General Information for Ground Fault Units

Ground Fault Trip Unit Installation Steps

Critical Installation Torque Warning

Warns against exceeding torque limits for trip unit retaining screws to prevent damage and nuisance tripping.

3-Pole Non-Ground Fault Trip Unit Installation

Trip Unit Installation Torque Limits

Final Installation Instructions

Rating Plug Installation

Status Light Interpretation Warning

Detailed Protection Settings

Testing and Code Requirements

Functional Field Testing

Ground Fault Performance Testing and Code

Ground Fault Testing Standards and Instructions

Standards Requirements for Ground Fault

General Test Instructions for Ground Fault

Electrical Shock Hazard Warning

Field Testing Limitations