Square D MA36400 3 Pole 400 Amp 600V Circuit Breaker

The Square D MA36400 is a 400A, 3-pole, 600V PowerPact M-Frame circuit breaker with thermal-magnetic LI trip. I-Line plug-in mounting for Square D I-Line panelboards and switchboards. Rated 25kA at 600V, 65kA at 480V, and 100kA at 240V. UL 489 listed and CSA certified. AllBreakerSales.com stocks new surplus and reconditioned MA36400 units with same-day quotes and nationwide shipping.

MA36400 Specifications

Specification	Value
Amperage	400A
Poles	3
Voltage	600VAC
Interrupt Rating	25kA @ 600V / 65kA @ 480V / 100kA @ 240V
Frame Size	M-Frame (400A Frame)
Mounting Type	I-Line Plug-In
Trip Type	Thermal Magnetic
Trip Function	LI — Long-Time, Instantaneous
Wire Size	3/0 AWG–350 kcmil (Al/Cu)
Phase	3-Phase
Standards	UL 489, CSA C22.2 No.5, NEMA AB 1
Temperature Rating	-25°C to 70°C

Key Features

• 400A continuous current rating
• 3-pole, 600V AC operation
• Thermal-magnetic LI trip (long-time, instantaneous)
• I-Line plug-in mounting for fast installation
• 25kA interrupting capacity @ 600V; 65kA @ 480V; 100kA @ 240V
• Visual trip indicator

Applications

• Commercial power distribution
• Industrial feeder protection
• Motor branch circuit protection
• Manufacturing facility electrical systems

Buy MA36400 Circuit Breaker

Square D PowerPact M-Frame 400A 3-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.

Brand: Square D | Series: PowerPact M-Frame | Catalog Number: MA36400

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