Siemens
Siemens NGG3B045L 45A 3-Pole Molded Case Circuit Breaker
Siemens NGG3B045L 45A 3-Pole Molded Case Circuit Breaker
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12-Mo Warranty
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
45A current rating
3-pole configuration
Thermal magnetic trip
25kA interrupting capacity
Feed-thru connection
UL Listed
Product description
The Siemens NGG3B045L is a 3-pole molded case circuit breaker designed for industrial applications, offering 45A of protection.
This circuit breaker features a thermal magnetic trip unit for reliable overload and short-circuit protection, with a 25kAIC at 480V interrupt rating. It is suitable for various mounting types, including DIN rail and screw mounting, and is designed for feed-thru applications.
Source your Siemens NGG3B045L from Stanlo Automation, a veteran-owned distributor offering a wide range of surplus industrial automation parts. Benefit from competitive pricing and fast shipping to keep your operations running smoothly.
Technical specifications
| Amperage | 45A |
| Voltage | 600V AC |
| Poles | 3 |
| Interrupt Rating | 25kA@480V |
| Frame Type | GG |
| Trip Type | Thermal Magnetic |
| Mounting | DIN Rail, Screw |
| Connection | Feed-Thru |
| Series | NGG |
Common applications
Industrial power distribution
Commercial electrical systems
Machine control
Panel building
Motor protection
Compatible systems
General industrial power distribution systems
Also known as
Siemens NGG3B045L circuit breaker, Siemens 45A 3P breaker, NGG3B045L MCCB
Replaces / compatible with
This circuit breaker is a direct replacement for older Siemens NGG series breakers of the same rating. Consult documentation for specific compatibility.
Technical note
Expert tip
The NGG3B045L is designed for feed-thru applications, ensuring proper installation in reverse-fed configurations.What happens next?
1
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2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the interrupt rating of the Siemens NGG3B045L circuit breaker?
The Siemens NGG3B045L circuit breaker has an interrupt rating of 25kA at 480V. This ensures it can safely interrupt fault currents in typical industrial and commercial applications.