The Schneider Electric Merlin Gerin STR55UP is a trip unit designed for integration into circuit breakers within the Compact Family series. This unit provides advanced, adjustable tripping functions and is specifically engineered for compatibility with Schneider Electric CK and CKAX model circuit breakers. Its robust design supports high current loads, making it suitable for demanding industrial power distribution applications.

Technical details

• Series: Compact Family
• Manufacturer: Schneider Electric
• Model: STR55UP
• Compatible Circuit Breaker Models: CK, CKAX
• Maximum Amperage Rating: 1200 A
• Trip Unit Type: Electronic, adjustable
• Functions: Provides adjustable overcurrent protection (e.g., long-time delay, short-time delay, instantaneous trip) - specific settings should be verified against the manufacturer's datasheet.

Applications & compatibility

This trip unit is commonly employed in medium to heavy-duty industrial electrical distribution systems. Applications include motor control centers, main distribution panels, and power feeders for machinery in sectors such as manufacturing, material handling, and process control. Its compatibility with CK and CKAX breakers ensures straightforward integration into existing Schneider Electric installations.

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 Electric Merlin Gerin STR55UP or contact our technical team for cross-reference assistance with compatible Compact Family components.