NEF437020 | Circuit Breaker | 20A | 3-Pole | 480V | Bolt-On

Meet the NEF437020: a purpose-built, industrial-grade circuit breaker engineered for 3-phase 480V systems. With a precise 20A rating and bolt-on mounting, this unit is designed for quick, reliable maintenance, retrofit, and replacement across demanding electrical environments. When the goal is to protect your three-pole circuit without sacrificing downtime, this breaker delivers straightforward installation paired with dependable protection across all phases.

Key specifications

• Amperage: 20 A
• Poles: 3-Pole
• Voltage: 480 V
• Mounting: Bolt-On
• Part reference: NEF437020

Designed for fast, reliable installations

Thanks to its bolt-on design, this circuit breaker simplifies retrofits and replacements in existing enclosures. It provides the necessary protection for three-phase loads at 480V while allowing technicians to swing into action quickly during routine maintenance or after a panel upgrade. The 3-pole configuration ensures synchronized protection across all phases, helping to prevent unbalanced loading and potential equipment damage.

Ideal use scenarios

• Maintenance and routine replacements in industrial control panels and switchgear
• Retrofit projects where a precise 20A, 3-pole, 480V breaker is required
• Upgrading legacy systems to maintain coordinated protection across all three phases
• Replacement in environments where bolt-on mounting is specified for speed and reliability

Compatibility and buying tips

Important: confirm fit and ratings before ordering. The part number NEF437020 is the best reference for compatibility with your equipment. When selecting this breaker, ensure your panel is designed for bolt-on 3-pole devices and that the system voltage and current requirements align with 480V and 20A. If you’re refurbishing an industrial electrical setup, this unit offers a straightforward path to restoring full protection with minimal panel modification.

In practice, this NEF437020 circuit breaker helps reduce downtime during maintenance, supports scalable upgrades in multi-phase systems, and provides dependable overload protection for 480V circuits. If you’re planning a retrofit or replacement in a demanding industrial setting, this 20A, 3-pole, bolt-on breaker is a precise, reliable choice.