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1SAM451000R1015

The ABB MS165‑42 (1SAM451000R1015) is a manual motor starter with built‑in motor protection designed to protect three‑phase and single‑phase motors from overload, short circuit, and phase failure. It combines switching, disconnect and protective functions in one compact unit and is ideal for use in control panels, industrial machinery, and motor circuits.

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Key Specifications General Manufacturer: ABB Model / Part Number: MS165‑42 / 1SAM451000R1015 Product Type: Manual Motor Starter / Motor Protection Circuit Breaker Series: MS165 series Mounting: DIN rail (standard TH35) Electrical Ratings Rated Operational Current (Ie): 42 A Adjustable Overload Setting Range: 30 – 42 A Rated Operating Voltage: 208 – 690 V AC Rated Insulation Voltage (Ui): 1000 V Short‑Circuit Release Setting (Ii): 630 A Rated Service Short‑Circuit Breaking Capacity (Ics): 50 kA @ 230 V AC 50 kA @ 400 V AC 30 kA @ 500 V AC 10 kA @ 690 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu): same as Ics for most voltages Rated Operational Power (AC‑3): ~22 kW @ 400 V AC Protection & Function Motor Protection: Thermal and short‑circuit protection with trip class 10 Phase Failure Sensitivity: Yes Disconnect Function: Built‑in (acts as manual disconnect) Trip‑Free Mechanism and Temperature Compensation included Handle Lockable: Yes (can be padlocked in OFF position) Mechanical & Physical Number of Poles: 3 Terminal Type: Screw terminals Degree of Protection: IP20 (housing) Mechanical Endurance: ~50,000 operations Electrical Endurance: ~25,000 operations Mounting Position: Any (DIN rail) Approx. Dimensions: ~55 mm (W) × ~142.6 mm (H) × ~122.1 mm (D) Approx. Weight: ~0.97 kg Applications Motor control and protection in industrial systems Protection of pumps, fans, compressors, conveyors Manual switching and motor overload protection