Square D | 997218 | Circuit Breaker | 150A | 2-Pole | 600V | Bolt-On

The Square D 997218 Circuit Breaker is engineered to deliver dependable overcurrent protection for demanding electrical systems. This 150-amp, 2-pole unit is designed for 600-volt service and uses a bolt-on mounting style for a secure, vibration-resistant installation in compatible panels and switchgear.

• Amperage: 150 A
• Poles: 2-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Compatibility reference: Part number 997218 is the best indicator for fit

Best used for maintenance, retrofit, and replacement projects where the exact specifications match. When upgrading or servicing electrical distribution, this breaker provides reliable protection for branch circuits and feeders up to 150 amps, interrupting power to both poles to ensure safe disconnection.

Why choose this Square D bolt-on breaker? The bolt-on design offers a robust mechanical connection that stays secure under vibration and heat, reducing the likelihood of loose connections over time. This is especially important in commercial and industrial environments where equipment runs continuously and safety margins are critical.

Use cases and scenarios

• Retrofits in service panels or load centers where a 150 A, 2-pole, 600 V bolt-on breaker is required.
• Spare replacement in maintenance closets or field service where quick, reliable replacement minimizes downtime.
• New equipment installations that demand a bolted connection for long-term stability and code-compliant protection.

Practical guidance

• Confirm fit and ratings before ordering. The part number 997218 is the primary compatibility reference, and panel labeling should align with a 600 V, 2-pole configuration.
• When installing, follow standard bolt-on torque specs and ensure clean, corrosion-free mounting surfaces for optimal electrical contact.