LPS Series POWR-SWITCH
STANDARD FEATURES
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600V 3-pole fuse power switch
200,000 RMS interrupting rating
Shunt trip 120V
Control power terminal block
Ground lug per NEC
Class J fuse block
NEMA 1 enclosures
NEW
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OPTIONAL FEATURES
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Control power transformer with fuses and blocks
Fire safety interface relay
Key to test switch
Pilot light ”On”
Isolated neutral lug
Mechanical interlock auxilliary contact for hydraulic eleva-
tors with automatic recall (5 amp 120 VAC rated)
Fire alarm voltage monitoring relay
NEMA 3R, 4, and 12 enclosures
The Littelfuse POWR-Switch provides a simple and econom-
ical solution for applications that require selective coordina-
tion and shunt trip capabilities. Common applications include
elevator circuits, data processing rooms, and building emer-
gency systems.
By utilizing Class J time delay fuses, the POWR-Switch is
easily coordinated with other system overcurrent devices.
The shunt trip capability allows the POWR-Switch to meet
the ANSI/ASME standard that requires power to be automat-
ically disconnected before water is turned on by the fire safe-
ty system. The POWR-Switch also features pre-wired control
circuits that can help reduce installation costs.
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BENEFITS
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Optional features offer flexibility for a variety of applica-
tions
UL Listed package
Lower installation costs than systems with many separate
components
Pre-wired control circuits lower installation time
Lockable Operating handle meets all code and safety
requirements
No confusion over which building trade is supplying the
components
POWR-Switch is a single unit...which makes procurement
easier than systems with multiple components
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148
LPS Series POWR-SWITCH
ORDERING INFORMATION
Complete catalog numbers consist of switch catalog numbers and the desired options. See example below.
Example Catalog Number:
LPS
T8
R1
K
N1
U = Littelfuse Catalog Number LPS1T48R1KN1U
Littelfuse
Switch Catalog
Number
Control Power
Transformer
Std. 100VA with
PRI & SEC
Fuse (120V
Sec.)
Option
Fire Safety
Interface Relay
(3PDT, 10amp,
120V)
Key to Test
Switch
Pilot Light
“ON”
Isolated Neutral
Lug
Mechanical Interlock
Auxilliary Contact
forHydraulic
Elevators w/
Automatic Recall (5
amp 120 VAC rated)
Option
Rating
1 NO & 1 NC
2 NO & 2 NC
Code
A
B
Fire Alarm
Voltage
Monitoring Relay
(Tp Monitor
Shunt Trip
Voltage)
Option
Rating
Single Pole
Three Pole
Code
F1
F3
Optional
Enclosures
Catalog
No
LPS3
LPS6
LPS1
LPS2
LPS4
Rating
30A
60A
100A
200A
400A
Rating
208V
240V
480V
600V
Option
Rating
24 VDC Coil
120 VAC Coil
Code
R2
R1
Rating
120V
Option
Code
K
Rating
Red
Green
White
Option
Code
R
G
W
Rating
30–60A
100A
200A
400A
Option
Code
N6
N1
N2
N4
Option
Rating
NEMA 3R
NEMA 4
NEMA 12
Code
U
Y
Z
Code
T20
T24
T48
T60
Note:
Desired options must appear 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.
SPECIFICATIONS
Approvals:
UL Listed and CSA Certified
Rating:
30A, 60A, 100A, 200A, 400A
Shunt Trip Ratings:
Amp
Rating
30–400
Voltage
Rating
120V, 60Hz
Max
Inrush
4A
Max
Ontime
1.5 cycles
Momentary
Inrush
140VA
ENCLOSURE DIMENSIONS
Catalog
Series
LPS3
LPS6
LPS1
LPS2
LPS4
Amp
Rating
30
60
100
200
400
NEMA 1
Dimensions
24”H x 20”W x 9”D
24”H x 20”W x 9”D
24”H x 20”W x 9”D
30”H x 20”W x 9”D
48”H x 36”W x 12”D
NEMA 3R
Dimensions
24”H* x 20”W x 8”D
24”H* x 20”W x 8”D
24”H* x 20”W x 8”D
30”H* x 20”W x 8”D
Contact Factory
NEMA 4, 12
Dimensions
24”H x 20”W x 10”D
24”H x 20”W x 10”D
24”H x 20”W x 10”D
24”H x 20”W x 10”D
Contact Factory
Lug
Size
#14 - #8 AL or CU
#14 - #8 AL or CU
#8 - 1/0 AL or CU
#6 - 250kcmil AL or CU
Contact Factory
Note: Over-size enclosures used to accomodate control power transformer, interface relay and terminal blocks.
*For NEMA 3R enclosures add 2 inches to height for mounting tabs.
149
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