Eaton Magnum SB Series Technical Product Manual page 44

Magnum trip units and communication devices
Digitrip 520MC
Digitrip 520MC includes all
the features of the Digitrip
520M plus an ampere-based
communications capability
and the Arc-flash Reduction
Maintenance System (ARMS) .
The additional features are the
following:
Communications functions
•
and data:
Transmit LED (Red)
•
indicates trip unit
7
transmitting INCOM signal
Device Settable INCOM
•
1
communication Address
from 001 to 999
1 hexadecimal
Bkr Status (Open, Closed,
•
Tripped)
1
PH1 Phase 1 (A) Current
•
1
PH2 Phase 2 (B) Current
•
PH3 Phase 3 (C) Current
•
1
PH4 Neutral Current
•
PH5 Ground Current
•
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
44
MaGnuM PRoDuct GuiDe CA013002EN—April 2017
Courtesy of NationalSwitchgear.com
LDPU Long Delay Pick-up
•
SDT Short Delay Trip
•
INST Instantaneous Trip
•
GNDT Ground Fault Trip
•
PLUG Plug Trip
•
MCR Making Current
•
Release
OTEMP Over Temperature
•
HL High Load (LSI only)
•
Arc-flash Reduction
•
Maintenance System
(ARMS) Functionality- On/
Off Pickup Levels
N otee: Ground (Earth) Alarm/Power
Supply Module is supplied as
standard to power trip unit
communications functions .
The 520MC is designed for
applications where some
communication capability of
load and status is required .
The 520MC trip unit
communicates current-based
information and breaker status .
The 520MC is ideally suited for
application on feeder breakers
and can be used in tandem
with mains and tie breakers
that are equipped with the
full metering and monitoring
capability of the 1150+ trip
unit . The communication
feature requires customer
supplied auxiliary power and
the Ground (Earth) Alarm/
Power Supply Module in order
to function .
N otee: Refer to pictures and/or
graphics in this section for
additional information and/or
assistance .
Click here or search
for '70C1037' on
www .eaton .com,
for more detailed
information on Magnum
Digitrip 520, 520M, and
520MC Digitrip trip units
www.eaton.com
Digitrip 520MC