Cutler-Hammer 30/20 Amp Tandem Circuit Breaker BD3020 - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Cutler-Hammer BD3020, a compact tandem circuit breaker designed to maximize panel capacity without compromising safety. This 30/20 Amp tandem unit provides a 20A, 120V, 1-pole plug-in solution, ideal for increasing circuit density in panelboards and load centers that support tandem configurations.

Why the BD3020 stands out

• Fast plug-in connection: Quick installation and effortless replacement reduce on-site downtime and service interruptions.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by combining thermal delays with magnetic instantaneous tripping for reliable overcurrent and short-circuit defense.
• Space-efficient tandem design: Two circuits in a single 1-pole body to help you optimize panel space in restricted installations.
• OEM-compatible: Engineered to match the characteristics of matching Cutler-Hammer OEM load centers and panelboards for a secure, proven fit.
• Versatile across settings: Suitable for residential, commercial, and light industrial applications where dependable circuit protection and density matter.

Specifications at a glance

• Amperage rating: 20A
• Voltage rating: 120V
• Number of poles: 1
• Mounting style: Plug-in
• Type: Thermal-magnetic molded case circuit breaker
• Manufacturer: Cutler-Hammer
• Part number: BD3020

Ideal use cases and practical tips

Use the BD3020 when you need to pack more circuits into a panel without expanding its physical footprint. It’s particularly valuable in retrofits, home electrical upgrades, small commercial offices, and light industrial setups where space is at a premium but reliable protection is non-negotiable. Always verify your panelboard or load center accepts tandem breakers of this type and consult the panel’s labeling to ensure correct configuration. When replacing an existing device, confirm the replacement matches the original amperage, voltage, and mounting compatibility to maintain safe, compliant operation.

With the Cutler-Hammer BD3020, you gain a dependable, space-conscious solution that combines proven protection with practical usability—making it a smart choice for situations where circuit density meets reliable, long-term performance.