Schneider C1642D160 Disconnector unit MicroLogic 2.2 ComPacT NSX160/250 4P 160A

The Schneider Electric C1642D160 is a MicroLogic 2.2 electronic protection unit for ComPacT NSX160/250 new-generation 4-pole circuit breakers, rated at 160A. It delivers LSoI protection - covering long-time overload, short-time short-circuit with fixed delay, and instantaneous short-circuit - for AC networks up to 690V.

Technical specifications:

• Commercial reference: C1642D160
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation (NSX160 / NSX250)
• Product type: Electronic protection unit (MicroLogic 2.2)
• Number of poles: 4P (configurations: 3d + N/2, 4d, 3d)
• Neutral conductor position: Left
• Protection function: LSoI (long-time, short-time, instantaneous)
• Trip unit rating: 160A at 40°C
• Rated voltage [Ue]: 690V AC 50/60 Hz
• Long-time pick-up [Ir]: Adjustable, 9 settings, 63-160A
• Long-time delay [tr]: Fixed (400s at 1.5xIr, 16s at 6xIr, 11s at 7.2xIr)
• Neutral protection: 0.5xIr (3d+N/2), 1xIr (4d), none (3d)
• Short-time pick-up [Isd]: Adjustable, 9 settings, 1.5-10xIr
• Short-time delay [tsd]: Fixed
• Instantaneous pick-up [Ii]: Fixed, 2400A
• Thermal memory: 20 minutes before and after tripping
• Mounting: Fixed
• IP protection rating: IP40 (IEC 60529)
• Electrical shock protection class: Class II
• Pollution degree: 3 (IEC 60947-1)
• Operating temperature: -25 to 70°C
• Storage temperature: -50 to 85°C
• Package weight: 561 g
• Standard: EN/IEC 60947-2

Features and benefits:

• LSoI electronic protection covers long-time overload, short-time short-circuit with fixed delay, and instantaneous short-circuit in a single unit
• Adjustable Ir across 9 settings (63-160A) and adjustable Isd across 9 settings (1.5-10xIr) for precise selective coordination
• Thermal memory retains tripping state for 20 minutes before and after operation, preventing nuisance re-energisation
• Three-colour LED local signalling: flashing green (device ready), orange at 90% Ir (pre-alarm), red at 105% Ir (overload)
• Compatible with both ComPacT NSX160 and NSX250 new-generation frames for retrofit and new-build flexibility

Applications:

• Industrial power distribution switchboards requiring selective short-circuit protection
• 4-pole feeders in TN-S or TT networks up to 690V AC where neutral conductor protection is required
• Retrofit or replacement trip unit for existing ComPacT NSX160/250 circuit breakers
• Commercial building sub-distribution panels with tiered overload coordination

Compliant with EN/IEC 60947-2. Part of the Schneider Electric ComPacT NSX new generation range.

Also known as: Schneider C1642D160, Schneider Electric C1642D160, MicroLogic 2.2 trip unit, NSX160 protection unit.