Siemens
Siemens 2KJ3407-5FN23-4FG1-Z 50A 400V Miniature Circuit Breaker
Siemens 2KJ3407-5FN23-4FG1-Z Miniature Circuit Breaker
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12-month warranty
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Same-day dispatch
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Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
3-pole configuration
50A current rating
400V operational voltage
10kA breaking capacity
Overload and short-circuit protection
DIN rail mountable
Product description
The Siemens 2KJ3407-5FN23-4FG1-Z is a 3-pole Miniature Circuit Breaker rated for 50A and 400V. It is designed for reliable overcurrent protection.
This breaker is suitable for main feeders, distribution circuits, and industrial machinery requiring 50A protection. It ensures safety and operational continuity in demanding environments.
As a veteran-owned surplus parts distributor, Stanlo Automation offers quality tested components like the Siemens 2KJ3407-5FN23-4FG1-Z. We provide fast shipping and expert support to meet your industrial needs.
Technical specifications
| Part Number | 2KJ3407-5FN23-4FG1-Z |
| Manufacturer | Siemens |
| Type | Miniature Circuit Breaker |
| Poles | 3 |
| Current Rating | 50A |
| Voltage Rating | 400V |
| Breaking Capacity | 10kA |
Common applications
Main Feeders
Industrial Power Distribution
Manufacturing Equipment
Large Appliances
Commercial Buildings
Electrical Panels
Motor Control
Compatible systems
Standard 35mm DIN rail
Industrial electrical distribution panels
Control systems
Also known as
Siemens 3-pole 50A MCB
2KJ3 Series Breaker
400V 10kA Circuit Breaker
Replaces / compatible with
This Siemens 2KJ3 series breaker is designed for specific electrical protection tasks. Consult Siemens technical documentation for exact replacement guidelines and compatible accessories.
Technical note
Expert tip
The 'FN23' designation may indicate specific trip curves or internal mechanisms; verify with Siemens data for precise application suitability.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
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 maximum voltage and current rating for the Siemens 2KJ3407-5FN23-4FG1-Z?
The Siemens 2KJ3407-5FN23-4FG1-Z is rated for a maximum voltage of 400V and a current of 50A. It is a 3-pole breaker designed to protect circuits within these parameters against overloads and short circuits.