401 - 450 of 870 listings
400 Amps, Square D, MA36400, #1421732
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MA36400
400 Amps, Square D, MA36400, 600 Volts, #1215102
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MA36400
Square D Circuit Breaker, Molded Case type, Catalog Number MA36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MAL36400, #1358775
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAL36400
Square D Circuit Breaker, Molded Case type, Catalog Number MAL36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MAL36400, adjustable taps, 600 Volts
Row Electrical Equipment | Toledo, OH
Seller: Row Electrical Equipment
Location: Toledo, OH
Mfr: Square D
Model: MAL36400
400 Amps, Square D, MAP36400, #1385308
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAP36400
Get email updates for newly added Insulated Case and Molded Case Circuit Breakers
Insulated Case and Molded Case Circuit Breakers (also known as MCCBs or compact circuit breakers) are protective devices designed to interrupt electrical flow during overcurrent or short circuit conditions. Insulated case breakers are typically larger and used in industrial settings, while molded case breakers are compact and widely used in residential, commercial, and industrial applications. Both types offer reliable circuit protection, ease of installation, and durability for various electrical systems.
400 Amps, Square D, ME36400LSG, #946544
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: ME36400LSG
400 Amps, Square D, MEL36400, removable trip, magna trip adjustment
Row Electrical Equipment | Toledo, OH
Seller: Row Electrical Equipment
Location: Toledo, OH
Mfr: Square D
Model: MEL36400
400 Amps, Square D, MEL36400LSG, #1321312
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MEL36400LSG
Square D Circuit Breaker, Molded Case type, Catalog Number MEL36400LSG, 400 amp frame current, 600 volts.
400 Amps, Square D, MGA36400, 3 Phase, 35kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: MGA36400
Square D MGA36400 Molded Case Circuit Breaker. Family Powerpact; Type MGA; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 35kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, MHF36400, #1347054
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MHF36400
Square D Circuit Breaker, Molded Case type, Catalog Number MHF36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MHL36400, #1344922
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MHL36400
Square D Circuit Breaker, Molded Case type, Catalog Number MHL36400, 400 amp frame current, 600 volts.
JUST ADDED!
400 Amps, Square D, MHL3640025DC679, Molded Case Circuit Breaker, 3-pole, 600 VAC/500 VDC, 3PH
Powerhouse Systems Llc | Niota, TN
Seller: Powerhouse Systems Llc
Location: Niota, TN
Mfr: Square D
Model: MHL3640025DC679
Amperage: 400APoles: 3Voltage: 600 VAC / ~500 VDCFrame Type: M-Frame (MHL Series)Trip Type: Thermal-Magnetic (LI)Interrupting Rating: ~25–35kA @ 480V AC, ~20kA @ 500VDCPhase: 3-Phase.
400 Amps, Square D, MJA36400, New out of Box, #1326684
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MJA36400
Square D Circuit Breaker, Molded Case type, Catalog Number MJA36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MJA36400, #1387392
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MJA36400
Square D Circuit Breaker, Molded Case type, Catalog Number MJA36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MJA36400, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: MJA36400
Square D MJA36400 Molded Case Circuit Breaker. Family Powerpact; Type MJA; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 65kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, MJL36400, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: MJL36400
Square D MJL36400 Molded Case Circuit Breaker. Family Powerpact; Type MJL; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 65kA@480V AIC; Feed-Through Mounting.
400 Amps, Square D, MX36400, 600 Volts, #504703
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MX36400
Square D Circuit Breaker, Molded Case type, Catalog Number MX36400, 400 amp frame current, 600 volts.
400 Amps, Square D, MX36400G, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: MX36400G
Square D MX36400G Molded Case Circuit Breaker. Family I-Line; Type MX; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 65kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, MX36400G, #659315
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MX36400G
Square D Circuit Breaker, Molded Case type, Catalog Number MX36400G, 400 amp frame current, 600 volts.
400 Amps, Square D, PGA36040CU33A, 3 Phase, 35kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: PGA36040CU33A
Square D PGA36040CU33A Molded Case Circuit Breaker. Family Powerpact; Type PGA; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 35kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, PGA36040CU44A, 600 Volts, #909976
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: PGA36040CU44A
Square D Circuit Breaker, Molded Case type, Catalog Number PGA36040CU44A, 400 amp frame current, 600 volts.
400 Amps, Square D, PGA36040U31A, PowerPact PG400, I-Line Circuit Breaker, 3P, 600 Volts 3 phase
OK Sales Inc | Burlington, NC
Seller: OK Sales Inc
Location: Burlington, NC
Mfr: Square D
Model: PGA36040U31A
Square D PGA36040U31A I-Line Circuit Breaker 400A 3P 600V 3PH PowerPact PG400, Brand: Square D Model: PGA36040U31A Type: I-Line Circuit Breaker 400 Amp 3 Pole 600V 3 Phase Power Pact PG400LI- Long Time and Instantaneous 3 screws in mounting bracket, Condition Notes: No box included, New old stock. May show signs of ...more
400 Amps, Square D, PGA36040U33A, 3 Phase, 35kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: PGA36040U33A
Square D PGA36040U33A Molded Case Circuit Breaker. Family Powerpact; Type PGA; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 35kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, PGA36040U44A, #942950
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: PGA36040U44A
Square D Circuit Breaker, Molded Case type, Catalog Number PGA36040U44A, 400 amp frame current, 600 volts.
400 Amps, Square D, PGA36040U63BE1YV, #725981
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: PGA36040U63BE1YV
Square D Circuit Breaker, Molded Case type, Catalog Number PGA36040U63BE1YV, 400 amp frame current, 600 volts.
400 Amps, Square D, PGA36040U63BE1YV, New out of Box, #699623
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: PGA36040U63BE1YV
Square D Circuit Breaker, Molded Case type, Catalog Number PGA36040U63BE1YV, 400 amp frame current, 600 volts.
400 Amps, Square D, PGA36040U63BEYV, #725288
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: PGA36040U63BEYV
Square D Circuit Breaker, Molded Case type, Catalog Number PGA36040U63B, 400 amp frame current, 600 volts.
400 Amps, Square D, PJA36040CU43BE1ABBC, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: PJA36040CU43BE1ABBC
Square D PJA36040CU43BE1ABBC Molded Case Circuit Breaker. Family Powerpact; Type PJA; 600 Voltage; 3 Pole; 3 Phase; 400 Amp; 65kA@480V AIC; I-Line Style Plug-In Mounting.
400 Amps, Square D, PJA36040CU44A, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: PJA36040CU44A
400 Amps, Square D, Q4L3400, #982710
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: Q4L3400
Square D Circuit Breaker, Molded Case type, Catalog Number Q4L3400, 400 amp frame current, 240 volts.
450 Amp, Square D #MH36450, Circuit Breaker, 3P, 600 Volts, 22K Series 2, AS IS
OK Sales Inc | Burlington, NC
Seller: OK Sales Inc
Location: Burlington, NC
Mfr: Square D
Model: CIRCUIT BREAKER
450 Amps, Square D, LC36450, #1295196
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: LC36450
Square D Circuit Breaker, Molded Case type, Catalog Number LC36450, 450 amp frame current, 600 volts.
450 Amps, Square D, LCL36450, manually operated, Fixed, #MC3667
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: LCL36450
Square D Circuit Breaker, Molded Case type, Catalog Number LCL36450, 450 amp frame current, 600 volts, Manual operation, Fixed mounting.
450 Amps, Square D, LX36450, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: LX36450
Square D LX36450 Molded Case Circuit Breaker. Family Micrologic; Type LX; 600 Voltage; 3 Pole; 3 Phase; 450 Amp; 65kA@480V AIC; I-Line Style Plug-In Mounting.
450 Amps, Square D, MA36450, 600 Volts, AS IS
OK Sales Inc | Burlington, NC
Seller: OK Sales Inc
Location: Burlington, NC
Mfr: Square D
Model: MA36450
450 Amps, Square D, MA36450, 600 Volts, #1215074
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MA36450
Square D Circuit Breaker, Molded Case type, Catalog Number MA36450, 450 amp frame current, 600 volts.
450 Amps, Square D, MA364501021, #1331768
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MA364501021
Square D Circuit Breaker, Molded Case type, Catalog Number MA364501021, 450 amp frame current, 600 volts.
450 Amps, Square D, MAL26450, 600 Volts, #1118980
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAL26450
Square D Circuit Breaker, Molded Case type, Catalog Number MAL26450, 450 amp frame current, 600 volts.
450 Amps, Square D, MAL36450, #1290681
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAL36450
Square D Circuit Breaker, Molded Case type, Catalog Number MAL36450, 450 amp frame current, 600 volts.
450 Amps, Square D, MAL36450, #699904
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAL36450
Square D Circuit Breaker, Molded Case type, Catalog Number MAL36450, 450 amp frame current, 600 volts.
450 Amps, Square D, MAL36450I386, 600 Volts, #1105968
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MAL36450I386
Square D Circuit Breaker, Molded Case type, Catalog Number MAL36450I386, 450 amp frame current, 600 volts.
450 Amps, Square D, MGP36450, Bolt-On Circuit Breaker, 600 Volts 3P 3 phase
OK Sales Inc | Burlington, NC
Seller: OK Sales Inc
Location: Burlington, NC
Mfr: Square D
Model: MGP36450
Square D MGP36450 Bolt-On Circuit Breaker 450A 600V 3P 3PH MGP 450 AMP 600 Volt, Condition Notes: Good Working Condition, Used working condition. Removed from working service environment. Industrial surplus., Most items ship same day or next day of payment received from North Carolina., UPS Next Day Air orders will ...more
450 Amps, Square D, MH36450, 600 Volts, #965615
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MH36450
Square D Circuit Breaker, Molded Case type, Catalog Number MH36450, 450 amp frame current, 600 volts.
450 Amps, Square D, MH36450, I-line, adjustable trips, 600 Volts
Row Electrical Equipment | Toledo, OH
Seller: Row Electrical Equipment
Location: Toledo, OH
Mfr: Square D
Model: MH36450
JUST ADDED!
450 Amps, Square D #MH450A, Molded Case Circuit Breaker, 3-pole, 600 Volt, 3PH
Powerhouse Systems Llc | Niota, TN
Seller: Powerhouse Systems Llc
Location: Niota, TN
Mfr: Square D
Model: CIRCUIT BREAKER
Amperage: 450A, Poles: 3, Voltage: 600 VAC, Frame Type: MH Frame, Trip Type: Thermal-Magnetic (LI), Interrupting Rating: ~35kA @ 480V, 65kA @ 240V, ~18–22kA @ 600V, Phase: 3-Phase.
450 Amps, Square D, MHL36450, #541390
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: MHL36450
Square D Circuit Breaker, Molded Case type, Catalog Number MHL36450, 450 amp frame current, 600 volts.
450 Amps, Square D, MJL36450, 3 Phase, 65kA @ 480V AIC, 600 Volts
Quality Switchgear Inc | Valley View, TX
Seller: Quality Switchgear Inc
Location: Valley View, TX
Mfr: Square D
Model: MJL36450
Square D MJL36450 Molded Case Circuit Breaker. Family Powerpact; Type MJL; 600 Voltage; 3 Pole; 3 Phase; 450 Amp; 65kA@480V AIC; Feed-Through Mounting.
500 Amps, Square D, LC365001253, I-Line circuit breaker with bell alarm
Industrial Control & Supply | Santa Fe Springs, CA
Seller: Industrial Control & Supply
Location: Santa Fe Springs, CA
Mfr: Square D
Model: LC365001253
500 Amps, Square D, LCP36500, #1389769
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: LCP36500
500 Amps, Square D, LX36500, #1312084
RESA Power Solutions | Cerritos, CA
Seller: RESA Power Solutions
Location: Cerritos, CA
Mfr: Square D
Model: LX36500
Square D Circuit Breaker, Molded Case type, Catalog Number LX36500, 500 amp frame current, 600 volts.
