Littelfuse EL3100 User Manual

Protection Relays & Controls

(Ground-Fault &
Phase-Voltage
Indicator)

EL3100

Remote
LEDs

AHGAL BH BL CH CL

DN

DR
DG
DA
DB

DC

Output

Relay

A

B

C

Ground-Fault Protection – Grounded/Ungrounded AC Systems

EL3100 SERIES

Ground-Fault & Phase-Voltage Indicator

Description

The EL3100 is a self-powered ground-fault and phase­voltage indication system for 3-phase systems. The EL3100
meets the National Electrical Code (NEC) and the Canadian
Electrical Code (CEC) requirements for ground detectors
for ungrounded alternating-current systems. Voltage
connections are provided on the EL3100 for 208, 240, 480,
and 600-V systems. Three green LED’s on the EL3100
indicate the presence of phase-to-ground voltage and one
red LED indicates a ground fault. The EL3100 can operate
stand-alone or with up to five remote LED indicators. A
solid-state relay output provides indication of a ground fault.
The output relay is closed when the 3-phase neutral voltage
shifts as the result of ground leakage.

Simplified Circuit Diagram

Features & Benefits

FEATURES BENEFITS

®

NEC® and CEC Code
compliant

Low-voltage
remote LEDs

Phase-voltage
indication

A

Output relay Allows for remote ground-fault indication

Meets National Electrical Code (NEC

250.21 and Canadian Electrical Code Part 1, Section
10-106 (2) requirements for ungrounded systems

System voltage is not present at the remote
LED location

Indicates the presence of voltage on both
grounded and ungrounded systems

) Article

Accessories

A

Remote LEDs

High-intensity 16-mm IP67 LED lamps
available in red and green colors.

Ordering Information

ORDERING NUMBER MOUNTING

EL3100-00 DIN, Surface

ACCESSORIES REQUIREMENT

RK-310X-0Y Optional

Note: X= R for red LED and G for green LED

Y=0 for no label and 1 for a g round-fault label

Littelfuse reser ves the right t o make produc t changes, without no tice. Material in this document is as accurate as known at the time of public ation. Visit L ittelfus e.com for the m ost up-to-da te infor mation.

© 2013 Littelfuse Protection Relays & Controls

© 2013 Littelfuse Protection Relays & Controls
Littelfuse.com/EL3100

Specifications

Input Voltage Input L: 208/240 Vac
Input H: 480/600 Vac

Dimensions H 87.0 mm (3.43”)

W 112.5 mm (4.43”)
D 56.0 mm (2.2”)

Approvals
Conformally Coated Standard feature
Warranty 5 years
Mounting DIN, Surface

CSA certified, UL Listed

(E340889)

Rev: 4-B-050213

Based on Manual Rev 1