NEF421030 - 30Amp Circuit Breaker

NEF421030 - 30Amp Circuit Breaker

The NEF421030 30 Amp circuit breaker is designed to provide dependable overcurrent protection for existing electrical distribution systems. Rated at 30 amps and built in a two-pole configuration, this molded case circuit breaker helps safeguard wiring and connected equipment from overloads and short circuits. Its thermal magnetic trip unit reacts to prolonged overcurrent conditions as well as instantaneous faults, helping reduce the risk of damage and downtime. The bolt-on mounting style creates a tight, secure connection to the panelboard, which is especially important in commercial and industrial environments where consistent performance matters.

Built for use in NEF frame panelboards, the NEF421030 offers solid interrupting capacity and reliable operation in 240VAC and 480VAC applications. Whether you’re replacing an existing breaker or performing routine electrical maintenance, this 30A bolt-on breaker is a practical solution for keeping your system protected and up to code.

Key Features and Benefits

• 30 Amp Rating – Designed for branch circuits requiring 30A overcurrent protection.
• Two Poles – Provides protection across two conductors for 240V and select 480V applications.
• Thermal Magnetic Protection – Combines overload and short-circuit protection in one unit.
• Bolt-On Design – Secures directly to the panelboard bus for a stable, reliable connection.
• Molded Case Housing – Made with durable insulating materials suited for demanding electrical settings.
• High Interrupting Rating – 14kA at 480VAC and 18kA at 240VAC for handling fault conditions.

Technical Specifications

• Model: NEF421030
  
• Amperage: 30 Amps
  
• Poles: 2
  
• Voltage: Up to 480VAC
  
• A.I.C. Rating: 14kA @ 480VAC; 18kA @ 240VAC
  
• Frame Type: NEF
  
• Mounting: Bolt-On
  
• Dimensions: 2.75” W x 6.19” L x 3.38” D
  
• Weight: 4.5 lbs
  

Material Compliance and Certifications

• Manufactured with industry-standard materials, the NEF421030 molded case circuit breaker is built to meet applicable electrical performance requirements.
• It is designed for proper installation in compatible NEF panelboards and for operation within its rated voltage and interrupting capacities, supporting safe and code-compliant use.

Where It Works Best

• This 30 amp two-pole bolt-on circuit breaker is commonly used in commercial buildings, light industrial facilities, and institutional settings.
• It works well for protecting HVAC equipment, lighting systems, motor loads, and other branch circuits operating at 240V or 480V.
• For electricians and maintenance teams looking for a straightforward, dependable replacement breaker, the NEF421030 is a reliable choice for maintaining system protection and continuity.