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SQUARE D Molded Case Circuit Breaker: 300 A Amps, 18kA at 600V AC, Adj, Box Lug - M-Frame Square D Molded Case Circuit Breakers
SQUARE DM-Frame Square D Molded Case Circuit Breakers

SQUARE D Molded Case Circuit Breaker: 300 A Amps, 18kA at 600V AC, Adj, Box Lug

The Square D MGL36300 is a 3-pole M-Frame Molded Case Circuit Breaker rated for 300 A at 600 V AC with a maximum AIR rating of 18 kA at 600 V AC. It features an adjustable instantaneous trip, box lug terminals, and…

SKU 3G-OTH-609491

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 300 A Amps, 18kA at 600V AC, Adj, Box Lug
Category
M-Frame Square D Molded Case Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
MGL36300
Series
MG
Type
18kA at 600V AC, Adj, Box Lug, CBA, MG
AC
600V
Poles
3
Max. AIR Rating
18kA at 600V AC
Phase Connection
CBA
Instantaneous Trip
Adjustable
Terminal Connection
Box Lug
View Full Spec Sheet

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D MGL36300 is a 3-pole M-Frame Molded Case Circuit Breaker rated for 300 A at 600 V AC with a maximum AIR rating of 18 kA at 600 V AC. It features an adjustable instantaneous trip, box lug terminals, and CBA phase connection, part of the MG series.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Square D MGL36300 molded case circuit breaker used for?

The Square D MGL36300 is a 3-pole M-Frame molded case circuit breaker rated for 300 A at 600 V AC. It protects industrial electrical circuits from overloads and short circuits, with an adjustable instantaneous trip and 18 kA interrupting rating at 600 V AC.

What are the specifications of the Square D MGL36300?

The Square D MGL36300 is a 3-pole MG series breaker rated 300 A at 600 V AC, with a maximum AIR rating of 18 kA at 600 V AC. It features adjustable instantaneous trip, box lug terminals, and CBA phase connection.

Where to buy the Square D MGL36300 worldwide?

3G Electric supplies the Square D MGL36300 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this MG series breaker to your facility. Contact us for availability and lead time.

How to select the Square D MGL36300 for an application?

Select the Square D MGL36300 based on your system voltage (600 V AC), continuous load (300 A), and available fault current (18 kA). Ensure the adjustable instantaneous trip setting matches your circuit protection coordination requirements.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D m-frame square d molded case circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Molded Case Circuit Breaker: 800 A Amps, 18kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MG (MPN MGL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
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Molded Case Circuit Breaker: 800 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
Molded Case Circuit Breaker: 350 A Amps, 18kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MG (MPN MGL36350). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
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Molded Case Circuit Breaker: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
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Molded Case Circuit Breaker: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
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Molded Case Circuit Breaker: 300 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJA36300). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
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Molded Case Circuit Breaker: 300 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJA36300). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.