The ABB XT1N 125 TMF 40 500 3p F F UL/CSA (Catalog No. 1SDA074639R1) is a three-pole molded case circuit breaker (MCCB) from the SACE Tmax XT series. It is designed for power distribution and motor control in both commercial and industrial settings

Core Specifications

• Frame Size: XT1 (up to 125A).
• Trip Unit Type: TMF (Thermomagnetic Fixed). It features a fixed thermal threshold for overload protection and a fixed magnetic threshold for short-circuit protection.
• Current Ratings:
  • Rated Current : 40A.
  • Instantaneous Magnetic Trip: 500A
• Voltage Ratings: 600Y/347V AC (UL/CSA) and 500V DC.
• Interrupting Capacity: 25kA at 480V AC (N-level performance).
• Configuration: 3-Pole (3p) with fixed (F) mounting and front flat (F) terminals.

Physical & Technical Features

• Durability: Rated for 25,000 mechanical operations and 8,000 electrical cycles.
• Installation: Panel or frame mountable with bolt-on terminal connections.
• Dimensions: Approximately 130mm height x 76.2mm width x 70mm depth.