Image colors may not be accurate.
Please see details, or call (800) 462-7733 for more information.

LW903QR

SKU: LW903QR

MPN: LW903QR

Purchase options

$256.94 / EA

manufacturer discounts
learn about discounts

$230.36 for $1,500.00+
$221.50 for $2,500.00+
$212.64 for $3,500.00+

In stock (1)

Lead time: over 7 working days

Lead time: over 7 working days
Secure checkout with protected order handling.
Single-unit ordering available.

Dale Electric Supply ships electrical products across the U.S. and supports international orders through customer service. Local delivery may be available in defined regional delivery zones, and larger same-manufacturer orders may qualify for factory-direct shipping. Shipping and fulfillment can vary by product, vendor, manufacturer program, stock state, destination, quantity, and quote workflow.

Customer Service International Sales Factory Direct Shipping

Buying confidence

Established 1948
Secure checkout and protected order handling
Phone support for compatibility and stock questions

Need cross-reference help?

Send us the SKU, manufacturer, photo, or catalog reference. We can cross-reference, confirm availability, and help source hard-to-find electrical supplies.

Contact support Browse catalog Search products

Request a quote

Key specs

View all

Amperage Rating: 451A
Type: LiquidCooled
Voltage Rating: 120/208 V

Description

Product overview

Siemens Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - Enclosed Circuit Breakers are Circuit Protection Molded Case Circuit Breakers. Type QJ Std UL F. Rating 50/60Hz Frame QJ No. Of Poles 3P Enclosure TYPE3R L 27.4 W 11.6 H 7.3 Operating Temperature (-25C -- 75C) AMBIENT TEMPERATURE Environmental Conditions OUTDOOR

Manufacturer highlights

Additional manufacturer notes

Short name: S-A
Feed description: S-A LW903QR BREAKER MQJ 3P ENCLOSUR
Invoice description: BREAKER MQJ 3P ENCLOSURE TYP 3R-MURRAY

Specifications

UPC: 040892524864

UNSPSC: 39121601

Country of Origin: US

Amperage Rating: 451A

Type: LiquidCooled

Voltage Rating: 120/208 V

Amperage Rating: 451A

Control: Type N Nexus Controller

Enclosure: Aluminum

Frequency Rating: 60 Hz

Fuel Consumption: LP

Height [in]: 116 in

Length: 37 in

Noise Level: 75dB

Phase: 3P

Rating: 130kW

Special product feature: Catalyst

Speed Rating: 3600RPM

Standard: UL

Type: LiquidCooled

Voltage / between phase and phase / rated value: 120/208 V

Voltage Rating: 120/208 V

Width: 55 in

BREAKER 20A 2P 120/240V 10K QP 10 KAIC SIEMENS

$17.50 / EA

142 available

View details

Specification comparison

Scan the attributes that differ across these alternatives.

Q120 View key specs

SKU: Q120
Price: $7.10 / EA
Availability: 77 available
Conductor Size: 14-12AWG(CU)/12-10AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 20 A
Frame: QP(125A)
Height [in]: 2.87 in
Length: 3 in

View full product details

Q230 View key specs

SKU: Q230
Price: $14.95 / EA
Availability: 77 available
Conductor Size: 14-6AWG(CU)/12-6AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 30 A
Frame: QP(125A)
Height [in]: 2.87 in
Length: 3 in

View full product details

Q115 View key specs

SKU: Q115
Price: $7.10 / EA
Availability: 97 available
Conductor Size: 14-12AWG(CU)/12-10AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 15 A
Frame: QP(125A)
Height [in]: 2.87 in
Length: 3 in

View full product details

Q250 View key specs

SKU: Q250
Price: $14.95 / EA
Availability: 66 available
Conductor Size: 8-6AWG(CU)/8-4AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 50 A
Frame: QP(125A)
Height [in]: 2.87 in
Length: 3 in

View full product details

Q2100 View key specs

SKU: Q2100
Price: $49.50 / EA
Availability: 21 available
Conductor Size: 4-1/0AWG(CU)/2-1/0AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 100 A
Frame: QP(125A)
Height [in]: 3.12 in
Length: 3 in

View full product details

Q220 View key specs

SKU: Q220
Price: $17.50 / EA
Availability: 142 available
Conductor Size: 14-12AWG(CU)/12-10AWG(AL)
Connection: PLUG-IN
Continuous current / rated value: 20 A
Frame: QP(125A)
Height [in]: 2.87 in
Length: 3 in

View full product details

Attribute	Q120 BREAKER 20A 1P 120V 10K QP SINGL POLE 20 AMP BREAKER 10 KAIC SIEMENS	Q230 Siemens Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit B...	Q115 BREAKER 15A 1P 120V 10K QP 10 KAIC SIEMENS	Q250 BREAKER 50A 2P 120/240V 10K QP 10 KAIC	Q2100 Siemens Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit B...	Q220 BREAKER 20A 2P 120/240V 10K QP 10 KAIC SIEMENS
Price	$7.10 / EA	$14.95 / EA	$7.10 / EA	$14.95 / EA	$49.50 / EA	$17.50 / EA
Availability	77 available	77 available	97 available	66 available	21 available	142 available
Conductor Size	14-12AWG(CU)/12-10AWG(AL)	14-6AWG(CU)/12-6AWG(AL)	14-12AWG(CU)/12-10AWG(AL)	8-6AWG(CU)/8-4AWG(AL)	4-1/0AWG(CU)/2-1/0AWG(AL)	14-12AWG(CU)/12-10AWG(AL)
Connection	PLUG-IN	PLUG-IN	PLUG-IN	PLUG-IN	PLUG-IN	PLUG-IN
Continuous current / rated value	20 A	30 A	15 A	50 A	100 A	20 A
Frame	QP(125A)	QP(125A)	QP(125A)	QP(125A)	QP(125A)	QP(125A)
Height [in]	2.87 in	2.87 in	2.87 in	2.87 in	3.12 in	2.87 in
Length	3 in	3 in	3 in	3 in	3 in	3 in
Number Of Poles	1	2	1	2	2	2
Standard	ULLISTED/CSA/NOMCERTIFIED	ULLISTED/CSA/NOMCERTIFIED	ULLISTED/CSA/NOMCERTIFIED	ULLISTED/CSA/NOMCERTIFIED	ULLISTED/CSA/NOMCERTIFIED	ULLISTED/CSA/NOMCERTIFIED
Supply voltage frequency / rated value / 50/60 Hz	TRUE	TRUE	TRUE	TRUE	TRUE	TRUE
Trip Type	THERMAL-MAGNETIC	THERMAL-MAGNETIC	THERMAL-MAGNETIC	THERMAL-MAGNETIC	THERMAL-MAGNETIC	THERMAL-MAGNETIC
Type	QP	QP	QP	QP	QP	QP
Type of mounting panel	LOADCENTER	LOADCENTER	LOADCENTER	LOADCENTER	LOADCENTER	LOADCENTER
Voltage / between phase and phase / rated value	—	240 V	—	240 V	240 V	240 V
Voltage Rating	120 V	120 V	120 V	120 V	120 V	120 V
Width	1 in	2 in	1 in	2 in	2 in	2 in

Ways to Shop

Need help finding a part?

LW903QR

Key specs

Description

Product overview

Manufacturer highlights

Additional manufacturer notes

Specifications

Similar items

Q120

Q230

Q115

Q250

Q2100

Q220

Specification comparison