Siemens | JD22B350H | Circuit Breaker | 350A | 2-Pole | 240V | Bolt-On

Siemens JD22B350H is a robust 350A, 2-pole, 240V circuit breaker engineered for demanding electrical environments. With its bolt-on mounting, this device delivers secure, vibration-resistant protection in maintenance, retrofit, and replacement scenarios where exact specifications are essential.

• Amperage: 350A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part number: JD22B350H (best reference for compatibility)
• Applications: Maintenance, retrofit, and replacement needs where matching specs are required

What makes this JD22B350H stand out is its combination of high-capacity protection and dependable, secure mounting. The 2-pole design ensures simultaneous disconnection of both live conductors on 240V circuits, helping to safeguard equipment and personnel during faults. The bolt-on configuration provides a solid, long-lasting installation well-suited to panels and enclosures that demand reliable retention under vibration or heavy load conditions.

Ideal use cases include upgrades or refreshes in commercial and industrial electrical distributions where you must match a specific 350A, 240V, 2-pole profile. It’s also a practical choice for retrofitting older systems that require the JD22B350H form factor and rating, or for replacing worn or failed breakers with a like-for-like part.

Compatibility and fit tip: always verify fit and ratings before ordering, and use the JD22B350H part number as the best reference for ensuring a correct match to your panel or control gear. When in doubt, cross-check the documentation for your equipment’s allowed interrupting capacity and mounting scheme to ensure seamless integration.

In real-world use, technicians turn to this Siemens bolt-on 350A 2-pole breaker to protect large feeders, motor circuits, and critical loads where precise 240V protection and a secure installation are non-negotiable. If you’re upgrading from a prior device or performing a targeted retrofit, the JD22B350H delivers the reliability and exact spec alignment you need for continued, safe operation.