OT25F4N1 Isolator Switch — OT series, 25 A, 4P Key benefits - Safe isolation for maintenance: 4-pole isolator enables positive separation of all live conductors (three phases plus neutral) for safe servicing and lockout procedures. - Right-sized protection: 25 A current rating provides clear, reliable isolation for circuits and equipment designed for that load level. - Series compatibility: Part of the OT series (range 16–160 A), allowing easy replacement or coordination with other OT-series devices. - Clear identification for procurement and support: Supplied with model number 10136476 and manufacturer part number 1SCA105055R1001 to simplify ordering and maintenance records. Main features and function - Function: Manual isolator switch used to disconnect electrical circuits for safety, maintenance, or emergency isolation. - Current rating: 25 A nominal rating for use on circuits sized to that current. - Configuration: 4P (four-pole) design to isolate all poles in multi-conductor systems. - Series: OT series, which covers a broader current range of 16–160 A for system-level compatibility and planning. - Identification: Model 10136476; part number 1SCA105055R1001. Compatibility and performance notes - Use with systems and panels that accept OT-series isolators; it matches the OT family’s performance range and installation practices. - Rated for circuits where a 25 A isolator is specified; select a different OT-series rating if circuit current differs. - 4P configuration provides comprehensive pole isolation suitable for three-phase installations with a neutral conductor. Practical use scenarios - Commercial electrical distribution: Install as the dedicated isolator for a 25 A subcircuit feeding HVAC control panels or lighting banks, enabling safe service isolation. - Three-phase motor or equipment isolation: Use the 4-pole isolator to disconnect all phases and neutral before maintenance on three-phase equipment rated for 25 A. - Panel retrofits and replacements: Replace an existing OT-series isolator with this unit when a 25 A, 4-pole device is required; use the model and part numbers (10136476 / 1SCA105055R1001) to ensure correct ordering. Ordering and identification - Model: 10136476 - Part number: 1SCA105055R1001 - Product: OT25F4N1, OT series isolator, 25 A, 4P If you require a different current rating within the OT family, choose from the OT series range (16–160 A) to match your circuit requirements.