Part of the Schneider Electric NSF250H series, the 37661 is a three-pole compact circuit breaker engineered for robust electrical system protection. This breaker is designed to handle significant current loads, making it suitable for demanding industrial environments where reliable power distribution is critical.

Technical details

• Series: NSF250H
• Poles: 3
• Current Rating: 225 A
• Interrupting Rating: Confirm with manufacturer datasheet (often encoded in part number for specific series)
• Frame Size: Compact
• Mounting Type: DIN rail or panel mount (verify mounting details against manufacturer specifications)
• Terminal Type: Screw terminals (typical for this class of breaker, confirm with datasheet)
• Operating Voltage: Confirm with manufacturer datasheet (often encoded in part number for specific series)
• Trip Unit Type: Thermal-magnetic (typical for this series, confirm with datasheet)

Applications & compatibility

The Schneider Electric 37661 circuit breaker is commonly deployed in motor control centers, power distribution panels, and machinery control systems within manufacturing facilities. Its 225A rating makes it suitable for protecting circuits feeding large motors, heavy-duty equipment, and main power feeds in applications such as conveyor systems, pump stations, and industrial processing lines.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider 37661 or contact our technical team for cross-reference assistance with compatible NSF250H series components.