Siemens ND63B1200 3 Pole 1200 Amp 600V Sentron Molded Case Circuit Breaker

The Siemens ND63B1200 is a 1200-amp, 3-pole, 600V Sentron Series molded case circuit breaker. The ND frame (1200A frame) provides high-capacity overcurrent protection for large commercial and industrial power distribution systems. Features an interchangeable Sensitrip electronic trip unit with LSIG (Long-time, Short-time, Instantaneous, Ground fault) protection.

ND63B1200 Specifications

Specification	Value
Amperage	1200A
Poles	3
Voltage	600V AC / 500V DC
Interrupt Rating	65kA @ 480V / 25kA @ 600V
Frame Size	ND (1200A Frame)
Mounting Type	Bolt-On / Draw-out
Trip Type	Electronic (Sensitrip IV)
Trip Function	LSIG (Long-time, Short-time, Instantaneous, Ground fault)
Wire Size	Up to 1000 kcmil
Phase	3-Phase
Standards	UL 489, CSA C22.2 No. 5
Temperature Rating	40°C

Key Features

• 1200A continuous rating at 40°C
• 65kA interrupting capacity at 480V
• Sensitrip IV electronic trip unit with integrated DAS
• LSIG trip function with ground fault protection
• Maintenance mode versions available
• Bolt-on and draw-out mounting configurations

Applications

• Main breaker in large commercial switchboards
• Service entrance protection for industrial facilities
• Feeder protection in data centers and hospitals
• Motor control center main disconnect
• Utility substation secondary distribution

Replaces: ND63B1200, ND6B1200

Buy ND63B1200 Circuit Breaker

Siemens Sentron ND Frame 1200A 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: Siemens | Series: Sentron ND Frame | Catalog Number: ND63B1200

Related Circuit Breakers

ND63B1200 - Siemens ND N-Frame | ND63B1000 - Siemens ND N-Frame | ND63B800 - Siemens Sentron ND Frame | LMD63B800 - Siemens Sentron LMD Frame | MD63B800 - Siemens Sentron MD Frame