Spec Sheet
Copyright © Liberty Pumps, Inc. 2019 All rights reserved. LLIT000600-R08/19
Specifications subject to change without notice.
SX-Series Simplex Pump Controls
Standard Features
Enclosure: 8" x 8" x 4"; NEMA 4X – ultraviolet stabilized
thermoplastic for outdoor use; NEMA 1 – metal for indoor use.
Certain options may increase enclosure size. 3-phase panels
measure 12" x 10" x 6".
Magnetic Motor Contactor: Controls pump by switching hot
electrical lines.
HOA Switch: Offers manual operation of pump (on circuit
board).
Green Pump Run Indicator: On circuit board
Float Switch Terminal Block: On circuit board
Control/Alarm Fuses: On circuit board
Control/Alarm Power Indicator: On circuit board
Circuit Breaker: 1-phase panels include appropriately - sized
circuit breakers to provide pump disconnect and branch
circuit protection. 3-phase breakers sized to application and
provide additional overload protection for the pump.
Pump Input Power and Pump Connection Terminal Block
Auxiliary Contacts
Ground Lug
Alarm Package: NEMA 4X = red beacon and horn (83 to
85 dB), exterior test/normal/silence switch. NEMA 1 = door
mounted red indicator and internally mounted buzzer (83 to
85 dB), exterior test/normal/silence switch.
3-Phase*
SX34=3-131 208/240/480 3 1.6–2.5A NEMA 4X
SX34=3-141 208/240/480 3 2.5–4.0A NEMA 4X
SX34=3-171 208/240/480 3 4.0–6.3A NEMA 4X
SX34=3-191 208/240/480 3 6–10A NEMA 4X
SX34=3-511 208/240/480 3 9–14A NEMA 4X
SX54=3-121 575 3 1.6–2.5A NEMA 4X
SX54=3-151 575 3 2.5–4.0A NEMA 4X
SX54=3-161 575 3 4.0–6.3A NEMA 4X
MODEL VOLTS PHASE FULL LOAD AMPS
(Must match pumps)
ENCLOSURE
1-Phase
SXL21=3 120/208/240 1 0–14.9A NEMA 1
SXL24=3 120/208/240 1 0–14.9A NEMA 4X
SXH21=3 120/208/240 1 15–20A NEMA 1
SXH24=3 120/208/240 1 15–20A NEMA 4X
**SXHC24=3-3 120/208/240 1 15–20A NEMA 4X
35' and 50' cord length options available. Add “-3” or “-5” sux to model number. Example: SXL21=3-5 for 50' cords.
*3-phase panels come equipped with thermal overload protection that must be properly sized to the pump’s full load run amps.
Multi-tap transformer (208/240/480 VAC primary) provides 120V control voltage. Motor protective switch provides adjustable overload,
branch circuit protection and pump disconnect. Please consult factory for proper panel selection.
** SXHC24=3-3 includes start/run capacitors and start relay for use with LSG202M-C and LSGX202M-C models.
Switch Specifications
All standard simplex panels include (3) pilot-duty float switches
for OFF, ON and Alarm. 20' cord standard. Optional lengths
available. External weights or pipe clamp mounts required.
Cable: Flexible 18 gauge, 2 conductor
Electrical: 5A, 120/230 VAC, 50/60 Hz
Float Switch: High-impact PVC
Maximum fluid temperature: 140°F
Weight: NEMA 1 Panels: 24 lbs (approx.)
NEMA 4X Panels: 19 lbs (approx.)
Liberty Pumps can customize a panel to your specific
pump needs. Please contact us for available options
and ordering information.
Liberty Pumps - 7000 Apple Tree Avenue - Bergen, New York 14416
Phone 800-543-2550 - Fax 585-494-1839 - www.LibertyPumps.com