Gould EH3-B030 ( EH3B030 ) 30-AMP Circuit Breaker Edpac 041683

The Gould EH3-B030 (EH3B030) is a 30-amp, 3-pole, 480V thermal-magnetic molded case circuit breaker, originally manufactured by ITE/Gould and later Siemens. It is now considered obsolete but still available as refurbished or surplus stock.

🔌 Key Specifications

• Type: Molded Case Circuit Breaker (EH Series)
• Manufacturer: ITE / Gould (later Siemens after mergers)
• Amperage: 30A
• Poles: 3-pole (for 3-phase systems)
• Voltage Rating: 480 VAC
• Interrupting Capacity:
• 18 kA @ 240 VAC
• 14 kA @ 480 VAC
• Trip Unit: Thermal-Magnetic (long-time & instantaneous trip functions)
• Mounting: Bolt-On style
• Frame Size: EH Frame, dimensions approx. 4" W × 4.56" D × 6.35" H
• Wire Compatibility:

• Aluminum: 12–10 AWG
• Copper: 14–10 AWG

⚙️ Applications

• Designed for residential, commercial, and light industrial panelboards (fits older ITE panelboards such as FC-1).
• Provides overcurrent protection for 3-phase electrical systems.
• Commonly used in obsolete panels, making it a replacement part for legacy installations.