Siemens | SJD69400G | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Meet the Siemens SJD69400G, a genuine, heavy‑duty circuit breaker engineered for reliability in demanding electrical systems. With a 400A rating, 3 poles, and a 600V capability, this bolt‑on device is built to protect and sustain industrial and commercial panels where precise protection and solid mounting matter most.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Part number: SJD69400G
• Intended use: maintenance, retrofit, and replacement in compatible panels

Why this Siemens breaker stands out

Designed for dependable protection across three electrical phases, the SJD69400G delivers consistent performance in systems that demand robust interruption and secure mounting. The bolt‑on construction provides a solid, vibration‑resistant fit inside compatible enclosures, helping to reduce service interruptions caused by loose fittings. By choosing a genuine Siemens part, you benefit from alignment with Siemens protection device families, ensuring predictable trip characteristics and long‑term compatibility with service and replacement interventions.

Ideal use cases

• Maintenance: keep critical distribution panels operating smoothly by replacing aging or failing protective devices with a like-for-like 3‑pole, 400A unit.
• Retrofit: upgrade legacy installations to a modern, reliable Siemens breaker that supports current electrical standards while preserving panel architecture.
• Replacement: field-ready spare for panels that require exact SJD69400G specifications to maintain system integrity and warranty compliance.

Compatibility and installation notes

To ensure seamless fitment, verify that your panel and bus arrangement align with a 3‑pole, 600V bolt‑on breaker. The part number is the best reference for compatibility, so cross‑check SJD69400G against your panel documentation before ordering. If you’re upgrading or replacing, confirm that the new device’s ratings match the circuit’s demand and that mounting provisions in the enclosure accommodate a bolt‑on style unit.

Practical guidance for best results

• Keep a spare SJD69400G on hand for proactive maintenance in facilities with heavy electrical loads.
• When replacing, follow standard safety procedures and de-energize the panel to ensure a safe bolt‑on installation.
• Document the exact part number in your maintenance logs to simplify future replacements and audits.