Square D | FAB34040 | Circuit Breaker | 3-Pole | Bolt-On

Discover the Square D FAB34040, a rugged 3-pole bolt-on circuit breaker engineered for demanding electrical environments. Designed for maintenance, retrofit, and replacement projects, this unit ensures reliable protection for three-phase circuits where exact specifications matter.

Key specifications at a glance

• Pole configuration: 3-Pole (three-phase protection)
• Mounting: Bolt-On for a secure, vibration-resistant installation
• Reference: Part number FAB34040—your best guide to compatibility

Why the FAB34040 stands out

• Secure, durable mounting: The bolt-on design anchors the breaker firmly in place, reducing the risk of connections loosening over time in operational environments.
• Precise compatibility cue: Rely on the FAB34040 as the definitive reference when matching breakers to your panel’s specifications and three-phase requirements.
• Designed for real-world tasks: Ideal for routine maintenance, panel retrofits, and replacement projects where exact specs and reliable interrupt protection are essential.

Ideal use cases

• Maintenance: swap out aging or failed breakers without a full panel redesign.
• Retrofit projects: upgrade aging systems with a bolt-on solution that preserves panel integrity and trip reliability.
• New installations in three-phase facilities: ensure robust circuit protection tailored to 3-phase loads.

Compatibility and installation tips

• Always confirm fit and ratings before ordering—the part number FAB34040 is your most reliable compatibility reference.
• Verify that your panel accepts bolt-on 3-pole breakers with matching interrupting ratings and trip characteristics.
• Follow standard safety practices: de-energize equipment and use appropriate personal protective equipment during installation or replacement.

With the reliability of Square D engineering, the FAB34040 delivers dependable three-phase protection in a compact, easy-to-install bolt-on package. It’s a practical choice for professionals handling maintenance, retrofit, or replacement tasks in commercial and industrial settings, where exact specs and secure mounting truly matter.