Siemens | SCJD69400G | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Siemens SCJD69400G circuit breaker is a robust, bolt-on 400A, 3-pole unit designed for 600V systems. Ideal for maintenance, retrofit, and replacement projects where exact specs matter.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage rating: 600V
• Mounting: Bolt-On

Why this Siemens breaker stands out

• Engineered for reliable performance in demanding commercial and industrial panels operating at 600V.
• Bolt-on design provides a secure, vibration-resistant connection, reducing the risk of loose connections during maintenance or retrofit.
• Part of Siemens' high-current protection line, built to handle heavy-load circuits typical of large equipment rooms.

Practical usage scenarios

• Upgrading service panels to support higher fault current or more demanding loads without replacing entire assemblies.
• Replacing worn or failing breakers in 3-phase, 600V distribution systems in manufacturing facilities or data centers.
• Retrofit projects where a 3-pole, 400A bolt-on breaker matches existing equipment and specifications.

Important compatibility notes

• Always confirm fit and ratings before ordering. The best compatibility reference is the part number SCJD69400G.
• Use in panels and enclosures designed to accept Siemens bolt-on 3-pole breakers at 600V and 400A ratings.

Installation and safety tips

• Disconnect power and lockout before servicing. Verify voltage with a calibrated meter before handling the breaker.
• Follow manufacturer torque and wiring guidelines for bolt-on mounting to ensure a secure, code-compliant connection.
• Keep spare units on hand for planned maintenance to minimize panel downtime.

With Siemens SCJD69400G, you get a purpose-built solution for heavy-current protection that aligns with established electrical codes and industry best practices. When the job demands a reliable 600V, 3-pole, 400A bolt-on breaker, this unit delivers predictable performance and straightforward retrofits—so you can protect equipment, personnel, and processes with confidence.