Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens SJL63B400G 400A 3-Pole 600 V Circuit Breaker
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens SJL63B400G 400A 3-Pole 600 V Circuit Breaker
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Meet the Siemens SJL63B400G, a rugged 400 A, 3-pole circuit breaker designed for demanding three‑phase electrical distributions. With a 600 V rating and the part number SJL63B400G, this device delivers reliable protection for large commercial, industrial, and multi‑unit installations where uptime and safety matter most.
Key specifications
- Current rating: 400 A
- Poles: 3
- Voltage rating: 600 V
- Part number: SJL63B400G
Why this breaker stands out
The SJL63B400G is built to handle substantial three‑phase loads while delivering precise, dependable interruption when faults occur. Its three‑pole design consolidates protection for all phases in a single device, simplifying panel layouts and reducing wiring complexity. This Siemens circuit breaker is engineered to meet rigorous electrical standards, helping you maintain safe operation in demanding environments.
Ideal applications
- Main service disconnects in commercial or industrial panels that require protection for three‑phase feeders up to 400 A
- Protection for large branch circuits and machinery in manufacturing facilities
- Upgrades or replacements in Siemens SJL‑series panels where a 400 A, 3‑pole solution is needed
Performance and protection you can rely on
Designed for stability under heavy loads, the SJL63B400G provides robust protection against overloads and faults in three‑phase systems up to 600 V. Its solid construction supports long service life in environments where electrical reliability is essential. By consolidating tri‑phase protection into one device, it helps reduce panel clutter and simplifies maintenance checks.
Installation and safety considerations
- Install by a qualified electrician following local electrical codes and Siemens installation guidelines
- Verify panel compatibility with SJL‑series breakers to ensure proper fit and safe operation
- Respect torque specifications and connection practices to maintain reliable electrical contact
Why choose Siemens for your high‑current protection
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
Verified
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
