الوصف
MS116-20 Manual Motor Starter
The MS116-20 manual motor starter (also known as motor protection circuit breaker or manual motor protector) is a compact 4.5 cm width device with a rated operational current of Ie = 20.0 A. This device is used to manually switch on and off motors and to protect them reliably and without the need for a fuse from short-circuits, overload and phase failures. The manual motor starter offers a rated service short-circuit breaking capacity Ics = 10 kA at 400 VAC and trip class 10A. Further features are the built-in disconnect function, temperature compensation, trip-free mechanism and a rotary handle with a clear switch position indication. The manual motor starter is suitable for three- and single-phase applications.
Auxiliary contacts, signaling contacts, undervoltage releases, shunt trips, 3-phase bus bars, power in-feed blocks and locking devices for protection against unauthorized changes are available as accessory.
Technical Specifications:
Rated operational power AC-3 (400 V) three-phase: 7.5 kW. Rated ultimate short-circuit breaking capacity Icu (400 V AC): 16 kA. Rated operational voltage main circuit: 690 V AC. Rated insulation voltage: 690 V. Rated impulse withstand voltage: 6 kV. Number of poles: 3. Conventional free-air thermal current Ith: 20 A. Degree of protection: Housing IP20, main circuit terminals IP10. Pollution degree: 3. Rated frequency: 50/60 Hz. Electrical durability: 50000 cycles. Mechanical durability: 100000 operations. Terminal type: Screw terminals. Connecting capacity main circuit: flexible with ferrule 0.75 … 6 mm², flexible 1 … 6 mm², rigid 1 … 6 mm². Tightening torque main circuit: 2 N·m. Wire stripping length main circuit: 10 mm. Mounting on DIN rail TH35-15 and TH35-7.5 acc. to IEC 60715. Minimum mounting distance electrical conductive board horizontal up to 690 V: 0 – 1.5 mm; vertical 7.5 cm; other device same type horizontal 0 mm, vertical 15 cm.
Environmental ratings include ambient air temperature around the enclosure 0 to +40 °C, operation -25 to +70 °C, compensated operation -25 to +55 °C and storage -50 to +80 °C. Maximum operating altitude permissible is 2000 m. The device conforms to standards IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1 and IEC 60335-2-40 A2L.
