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3G Electric
SQUARE D MJA36300 M-Frame Molded Case Circuit Breaker - M-Frame Square D Molded Case Circuit Breakers
SQUARE DM-Frame Square D Molded Case Circuit Breakers

SQUARE D MJA36300 M-Frame Molded Case Circuit Breaker

<p>The SQUARE D MJA36300 is a 3-pole M-Frame molded case circuit breaker rated at 300A and 600V AC, with a maximum interrupting rating of 25kA at 600V AC. It features an adjustable instantaneous trip and box lug…

SKU 3G-OTH-609492

Also listed as: MJA 36300 · MJA-36300

Brand
SQUARE D
Item
MJA36300 M-Frame Molded Case Circuit Breaker
Part Number
MJA36300
Category
M-Frame Square D Molded Case Circuit Breakers
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE D
Manufacturer Part Number
MJA36300
Series
MJ
Type
25kA at 600V AC, Adj, Box Lug, ABC, MJ
AC
600V
Poles
3
Max. AIR Rating
25kA at 600V AC
Phase Connection
ABC
Instantaneous Trip
Adjustable
Terminal Connection
Box Lug

Technical Documents

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

Product Description

<p>The SQUARE D MJA36300 is a 3-pole M-Frame molded case circuit breaker rated at 300A and 600V AC, with a maximum interrupting rating of 25kA at 600V AC. It features an adjustable instantaneous trip and box lug terminals, making it suitable for a range of industrial applications. This breaker is part of the MJ series and is designed for ABC phase connection.</p><p>For procurement in Singapore, 3G Electric offers this unit with quotes in SGD, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia. Worldwide shipping is also available.</p>

Frequently Asked Questions

What is the interrupting rating of the SQUARE D MJA36300?

The maximum interrupting rating is 25kA at 600V AC.

Does the MJA36300 have adjustable trip settings?

Yes, the instantaneous trip is adjustable.

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
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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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Three-pole molded case circuit breaker rated 800 A at 600 V AC with a maximum interrupting rating of 25 kA at 600 V AC. Features adjustable instantaneous trip, box lug terminals, and ABC phase connection. Suitable for overcurrent protection in power distribution, motor control centers, and switchboards
SQUARE D
Three-pole molded case circuit breaker rated 800 A at 600 V AC with a maximum interrupting rating of 25 kA at 600 V AC. Features adjustable instantaneous trip, box lug terminals, and ABC phase connection. Suitable for overcurrent protection in power distribution, motor control centers, and switchboards

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