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ABB SD202/16

The ABB SD202/16 is a high-tier 2-pole switch disconnector from the renowned System pro M compact SD200 series, specifically engineered for robust circuit isolation in residential and light commercial panels. Rated at 16A with a 400V capacity, this Italian-made component is designed for those who prioritize mechanical longevity and safety, offering a dedicated AC-23A utilization category for handling demanding motor loads and frequent switching cycles.

Quick Answer

The ABB SD202/16 is a 16A, 2-pole (1-Phase + Neutral) DIN-rail mounted main switch used for manual isolation of electrical circuits. It is ideal for HVAC isolators, sub-panel disconnects, and water heater circuits where reliable 10kA-rated disconnection is required.

✓AC-23A Utilization Category: Optimized for switching high inductive loads and motors.
✓10kA Breaking Capacity: High-performance safety rating for robust fault endurance.
✓2-Pole Configuration: Provides simultaneous isolation for both phase and neutral lines.
✓Italian Engineering: Manufactured in Italy under strict System pro M compact quality standards.
✓Compact DIN Rail Design: Easy integration into standard 35mm modular distribution boards.

Choose the ABB SD202/16 if you are looking for a professional-grade, 16A isolation solution that exceeds basic residential standards. Its AC-23A rating and Italian manufacturing make it the preferred choice for reliable HVAC and water heater isolation where safety and longevity are non-negotiable.

✓ Who Should Buy

  • •Electrical contractors installing premium HVAC or water heater isolation points.
  • •Panel builders requiring high-spec 10kA 2-pole disconnectors for modular boards.
  • •Facility managers upgrading to ABB's System pro M compact series for standardized safety.

✕ Who Should Avoid

  • •Users requiring automatic trip protection against overloads (Use an MCB instead).
  • •Industrial applications requiring more than 16A or three-phase (3P/4P) switching.
Product Overview
The ABB SD202/16 serves as a critical manual interface within electrical distribution systems. Unlike standard breakers, this switch disconnector focuses purely on the safe 'on-off' control of a circuit without integrated overload or short-circuit protection. Its 16A rating makes it the perfect fit for localized equipment isolation, ensuring maintenance personnel can work safely by providing clear, visible disconnection via the manual toggle mechanism. Its thermoplastic housing is built to withstand the rigors of continuous operation within an IP40-rated environment. Technically, the SD202/16 excels in its contact efficiency. Part of the pro M compact range, it ensures low contact resistance and minimal thermal dissipation. The 2nd pole acts as a dedicated neutral disconnect, which is vital for modern safety standards in single-phase applications, preventing potential back-feeds and ensuring a completely de-energized state during maintenance.

BrandABB
Model NameSD202/16
TypeMain Switch Disconnector
SeriesSystem pro M compact SD200
Housing MaterialThermoplastic
Country Of OriginItaly
Release Year2005

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Engineering Analysis
The engineering core of the SD202/16 lies in its 'Switch Disconnector' functionality, which requires specific creepage and clearance distances to ensure true isolation. The device utilizes a high-torque screw terminal system that prevents wire loosening over time—a leading cause of electrical fires. With a 400V rated voltage and 10kA breaking capacity, the internal mechanical bridge is designed for high-speed separation to quench arcs effectively, even under full load conditions.

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