Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 091219
1 of 2
Pre-Engineered Solution Datasheet
LPS SERIES SHUNT TRIP DISCONNECT SWITCH
Description
The Littelfuse
®
LPS Series provides a simple and economical
solution for applications that require selective coordination
and shunt trip capabilities.
Utilizes Class J time-delay fuses that are easily coordinated
with other system overcurrent devices. The shunt trip
capability allows the LPS Series to meet the ANSI/
ASME standard that requires power to be automatically
disconnected before water is turned on by the fire safety
system.
Applications
Elevator circuits
Data processing rooms
Building emergency systems
Web Resources
Download technical information: Littelfuse.com/lps
Specifications (Disconnect Switch)
Supply Voltage Rating* 208 V, 240 V, 480 V
Ampere Range 30 A, 60 A, 100 A, 200 A, 400 A
Enclosures NEMA 1 (standard)
NEMA 3R, NEMA 4, NEMA 12 (optional)
Approvals UL Listed (File: E219511)
*Contact factory for 600 V options.
Specifications (Shunt Trip)
Voltage Rating 120 V, 60 Hz
Max Inrush 4 A
Max On time 1.5 cycles
Momentary Inrush 140 VA
SCCR 200 kA
Features/Benefits
Pre-engineered single unit, which makes procurement
easier than systems with multiple components
Reduces labor costs up to 66 % and total installation
costs by over 30 %
Pre-installed UL Listed Class J fuse holder – unique
Class J size eliminates the need for any rejection type
fuse clips
Optional features offer flexibility for a variety of
applications
Color coded control power terminal blocks
UL Listed package
Cu and AI wire rated
Pre-wired control circuits lower installation time
Lockable operating handle meets all code and safety
requirements (accepts up to 3 locks)
Every unit is fully tested before delivery
Options
Control power transformer with fuses and blocks
Fire safety interface relay
Key to test switch
Pilot light ”On”
Isolated neutral lug
Mechanical interlock auxiliary contact for hydraulic
elevators with automatic recall (5 amp 120 V ac rated)
Fire alarm voltage monitoring relay
Option to bypass alarm when performing maintenance
(-AZ option)
XPress-Ship™ service offers 48 hours direct shipment
service on select fully loaded LPS Series Shunt Trip
Disconnect Switches
Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse
products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.
Littelfuse.com/psr
© 2019 Littelfuse, Inc.
Rev: 091219
2 of 2
Pre-Engineered Solution Datasheet
LPS SERIES SHUNT TRIP DISCONNECT SWITCH
LITTELFUSE
SWITCH
CATALOG
NUMBER
CONTROL
POWER
TRANSFORMER
STD. 100VA WITH
PRI & SEC FUSE
(120 V SEC.)
FIRE SAFETY
INTERFACE RELAY
(3 PDT, 10 A, 120 V)
KEY TO
TEST SWITCH
PILOT LIGHT
“ON”
ISOLATED
NEUTRAL
LUG
MECHANICAL
INTERLOCK AUX.
CONTACT FOR
HYDRAULIC
ELEVATORS W/
AUTOMATIC RECALL
(5 A ,120 VAC)
FIRE ALARM
SHUNT TRIP
VOLTAGE
MONITORING
RELAY
OPTIONAL
ENCLOSURES
—
AZ OPTION
(BYPASS
FIRE
ALARM
DURING
MAINT.
TEST)
REQUIRED REQUIRED REQUIRED OPTIONAL OPTIONAL OPTIONAL REQUIRED REQUIRED OPTIONAL OPTIONAL
BASE
CATALOG #
RATING
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
RATING
OPTION
CODE
OPTION
CODE
LPS3* 30 A 208 V T20 24 VDC Coil R2 120 V K Red R 30–60 A N6 1 NO & 1 NC A 1-Pole F1 NEMA 3R U – AZ
LPS6* 60 A 240 V T24 120 VAC Coil R1 Green G 2 NO & 2 NC B 3-Pole F3 NEMA 4 Y –
LPS1* 100 A 480 V T48 White W 100 A N1 NEMA 12 Z –
LPS2* 200 A 200 A N2 –
LPS4* 400 A 400 A N4 –
*Part Numbers: Any voltage can be paired with any amperage. Options can be any combination but the ratings must match the option code. Not all options are required.
Contact factory for 600 V control power transformer option.
Note: When ordering - desired options must be listed in the order shown above. Typical options include Control Power Transformer, Fire Safety Interface Relay,
Mechanical Interlock Auxiliary Contact and Fire Alarm Voltage Monitoring Relay.
Example Catalog Number from Desired Options
Dimensions of Enclosure
CATALOG
SERIES
AMPERE
RATING
NEMA 1
DIMENSIONS
NEMA 3R
DIMENSIONS
NEMA 4, 12
DIMENSIONS
LUG SIZE
SHIPPING
WEIGHT (LBS)
LPS3 30 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #14 - #8 AL or CU 75
LPS6 60 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #14 - #2 AL or CU 75
LPS1 100 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #8 - 1/0 AL or CU 75
LPS2 200 30”H x 20”W x 9”D 30”H x 24”W x 8”D 30”H x 20”W x 10”D #6 - 250 kcmil AL or CU 85, 115*, 120**
LPS4 400 48”H x 36”W x 10”D 48”H x 36”W x 12”D 48”H x 36”W x 10”D (2) 250 kcmil - 3/0 AL or CU 225
* NEMA 3R
** NEMA 4 & NEMA 12
Note: Over-size enclosures used to accommodate control power transformer, interface relay and terminal blocks.
Ordering Information
Complete catalog numbers consist of switch catalog numbers and the desired options. See example below.
Littelfuse XPress-Ship
™
service offers 48 hours** direct-shipment
service on select fully-loaded LPS Series Shunt Trip Disconnect
Switches to meet your urgent system requirements on time.
XPress-Ship
™
switches include three JTD_ID Series
fuses rated at the device’s maximum ampacity.
AMPERE
RATING
VOLTAGE
RATING
CATALOG NUMBER
XPress-Ship
™
ORDERING NUMBER
60 A 208 V LPS6T20R1KGN6BF3-AZ XPS6T20R1KGN6F3-AZ*
60 A 480 V LPS6T48R1KGN6BF3-AZ XPS6T48R1KGN6F3-AZ*
100 A 208 V LPS1T20R1KGN1BF3-AZ XPS1T20R1KGN1F3-AZ*
100 A 480 V LPS1T48R1KGN1BF3-AZ XPS1T48R1KGN1F3-AZ*
100 A 480 V LPS1T48R1KGN1BF3 XPS1T48R1KGN1BF3
200 A 208 V LPS2T20R1KGN2BF3-AZ XPS2T20R1KGN2F3-AZ*
200 A 480 V LPS2T48R1KGN2BF3 XPS2T48R1KGN2BF3
*AZ option includes B & F3 options.
XPress-Ship
™
US Only
**XPress-Ship
™
48 hour service requires ordering from XPress-Ship
™
Ordering Numbers shown above and is subject to a maximum of any combination of three switches per customer order.
XPress-Ship
™
service offers 48 hour shipment from the factory through standard ground transportation. For expedited delivery, contact your local Littelfuse Representative.
LPS1 T20 R1 K G N1 B F3 U – AZ =
Littelfuse Catalog Number
LPS1T20R1KGN1BF3U-AZ