Key Features
3‑pole switch disconnector for three‑phase circuits.
Rated current: 32 A — supports moderate current loads.
Manual operation via a toggle or handle actuator.
DIN‑rail mountable for easy integration into control panels.
Screw terminal connections for secure wiring.
Compact design suited for System Pro M Compact installations.
Contact position indicator showing ON/OFF condition.
Electrical Ratings
Rated operational voltage: Up to 440 V AC in three‑phase systems.
Rated current: 32 A continuous load capacity.
Designed to interrupt load currents when opening under rated conditions.
Operating frequency compatible with 50 / 60 Hz systems.
Suitable transient withstand and insulation levels for typical low‑voltage power circuits.
Mechanical & Endurance
Poles: 3 poles with associated contacts.
Electrical endurance: Built for substantial cycling in switching applications.
Mechanical endurance: Designed for long service life with numerous make/break operations.
Terminal type: Screw clamp style for solid and stranded wiring.
Environmental & Protection
Operating temperature range: Typical industrial ambient range.
Storage temperature range: Broad range to withstand transport and storage conditions.
Protection rating (front and body): Basic IP20 touch protection at terminals when installed inside an enclosure.
Contact state indicator: Clear ON/OFF position marking for operator safety.
Physical & Installation
Mounting type: DIN‑rail mountable (TH35 rail) for quick panel installation.
Compact footprint: Saves space in distribution boards and control cabinets.
Handle/Actuator: Manual control for disconnecting and reconnecting the circuit.
Dimensions: Designed to fit standard industrial panel layouts.
Typical Applications
Main disconnect switch in motor control centers and control panels.
Isolation device for three‑phase power circuits during maintenance.
Safety disconnect in industrial and commercial electrical distribution.
Integration with other System Pro M components for compact panel design.
The ABB SD203/32 is a 3‑pole switch disconnector (load‑break switch) designed for industrial control panels and power distribution applications. It provides a manual means of isolating three‑phase circuits and is suitable for use as a main isolator or safety disconnect in electrical systems that require a visible break and reliable switching for maintenance or emergency purposes.