SSAC PLS Series Catalog Page
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
Reverse Phase RelayReverse Phase Relay
Reverse Phase Relay
Reverse Phase RelayReverse Phase Relay
PLS Series
Motor Protector
DescriptionDescription
Description
DescriptionDescription
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.
OperationOperation
Operation
OperationOperation
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.
Approvals:
AccessoriesAccessories
Accessories
AccessoriesAccessories
Panel mount kit
BZ1 BZ1
P/N:
BZ1
BZ1 BZ1
Octal
8 pin socket
OT08PC OT08PC
P/N:
OT08PC
OT08PC OT08PC
3-phase fuse
block/disconnect
P0700-241P0700-241
P/N:
P0700-241
P0700-241P0700-241
2 AMP fuse
P0600-11 P0600-11
P/N:
P0600-11
P0600-11 P0600-11
DIN rail P/Ns:
017322005 017322005
017322005 (Steel)
017322005 017322005
C103PM C103PM
C103PM (Al)
C103PM C103PM
ConnectionConnection
Connection
ConnectionConnection
2 Amp
Fast Acting
Fuses
Recommended
For Safety
(Not Required)
F = Fuses
OA = Phase A = L1
OB = Phase B = L2
OC = Phase C = L3
NO = Normally Open
NC = Normally Closed
Relay contacts are isolated. Dashed lines are
internal connections.
OrOr
dering Tdering T
Or
dering T
OrOr
dering Tdering T
VV
V
VV
120 V AC
208/240 V AC
380/415 V AC
440/480 V AC
oltageoltage
oltage
oltageoltage
ableable
able
ableable
Part NumberPart Number
Part Number
Part NumberPart Number
PLS120A
PLS240A
PLS380A
PLS480A
See accessory pages for
specifications.
PLS02B01 06.09.04
Low Voltage Products & Systems7.24
Reverse Phase RelayReverse Phase Relay
Reverse Phase Relay
Reverse Phase RelayReverse Phase Relay
PLS Series
Motor Protector
Technical Data Technical Data
Technical Data
Technical Data Technical Data
Line VLine V
oltageoltage
Line V
oltage
Line VLine V
oltageoltage
Type 3-phase Delta or Wye with no connection to neutral
Frequency 50 ... 60 Hz
Phase Sequence ABC
Response TimesResponse Times
Response Times
Response TimesResponse Times
Pull-in ≤ 300 ms
Drop-out ≤ 50 ms
OutputOutput
Output
OutputOutput
Type Electromechanical relay, energized when the phase sequence is correct
Form Isolated SPDT
Rating 120 & 240 V AC 10 A resistive at 240 V AC
380 & 480 V AC 8 A resistive at 240 V AC
Maximum Voltage 250 V AC
ProtectionProtection
Protection
ProtectionProtection
Isolation Voltage 120 & 240 V AC ≥ 1500 V RMS input to output
380 & 480 V AC ≥ 2500 V RMS input to output
MechanicalMechanical
Mechanical
MechanicalMechanical
Mounting Plug-in socket
Termination 8 pin, octal plug
EnvironmentalEnvironmental
Environmental
EnvironmentalEnvironmental
Operating Temperature -40°C ... +55°C
Storage Temperature -40°C ... +85°C
Weight ≅ 6 oz (170 g)
Nominal VNominal V
Nominal V
Nominal VNominal V
120 V AC 95 V AC 135 V AC
208/240 V AC 175 V AC 255 V AC
380/415 V AC 310 V AC 430 V AC
440/480 V AC 380 V AC 500 V AC
oltageoltage
oltage
oltageoltage
Minimum V Minimum V
Minimum V
Minimum V Minimum V
oltage Maximum Voltage Maximum V
oltage Maximum V
oltage Maximum Voltage Maximum V
oltageoltage
oltage
oltageoltage
PLS02B01 06.09.04
Mechanical View Mechanical View
Mechanical View
Mechanical View Mechanical View
Inches (Millimeters)
Low Voltage Products & Systems 7.25
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