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Protects Against Phase
Reversal
Low Cost Protection, One
Unit for All Sized Motors
3 Wire Connection for
Delta or Wye Systems
Octal Base Connection--
Industry Standard Wiring
SPDT Isolated Relay
Contacts
Factory Calibrated--No
Adjustments Required
Approvals:
Accessories
Panel mount kit
P/N: BZ1
Octal
8 pin socket
P/N: OT08PC
3-phase fuse
block/disconnect
P/N: P0700-241
2 AMP fuse
P/N: P0600-11
DIN rail P/Ns:
017322005 (Steel)
C103PM (Al)
See accessory pages for
specifications.
7.20
1TRC 001 009 C0202
Reverse Phase Relay
PLS Series
Motor Protector
Description
The PLS Series is a low cost phase sensitive control that provides an isolated contact closure when the proper
A-B-C phase sequence is applied. Protects sensitive 3 phase equipment and equipment operators from
reverse rotation. Designed to be compatible with motor overloads or other 3 phase equipment protection
devices.
Protection for equipment control centers where frequent reconnection or electrical code makes
reverse rotation protection essential. Examples include, mobile refrigerated containers, construction equipment,
hoists, pumps, conveyors, elevators and escalators.
Operation
The internal relay and LED are energized when the
phase sequence is correct. The output relay will not
energize if the phases are reversed. Reset is automatic
upon correction of the fault.
Connection
Relay contacts are isolated. Dashed lines are
internal connections.
Ordering Table
Voltage
120
V AC
208/240 V AC
380/415 V AC
440/480 V AC
2 Amp
Fast Acting
Fuses
Recommended
For Safety
(Not Required)
F = Fuses
ØA = Phase A = L1
ØB = Phase B = L2
ØC = Phase C = L3
NO = Normally Open
NC = Normally Closed
Part Number
PLS120A
PLS240A
PLS380A
PLS480A
ABB Inc. • 888-385-1221 • Technical assistance 800-377-7722 • www.ssac.com
Low Voltage Products & Systems
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