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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
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

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 electrical panels — QO and QOB miniature circuit breakers for overcurrent protection in load centers and panelboards.
HVACR equipment — 8910 Series Type DPA definite purpose contactors for switching compressor and fan motor loads.
Industrial power distribution — J-Frame molded case circuit breakers for main and feeder protection in switchboards.
Residential ground-fault protection — QO and QOB GFI circuit breakers for kitchens, bathrooms, and outdoor circuits.
Motor control centers — definite purpose contactors for controlling pumps, fans, and other moderate motor loads.
OEM machinery — Square D circuit breakers and contactors for integration into control panels and equipment.
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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

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