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NOARK: Ex9SN25B1A Thermal-Magnetic Manual Motor Starter (MMS)

Oct 9, 2025 - NOARK Ex9SN25B1A Thermal-Magnetic Manual Motor Starter (MMS)

October 9, 2025

Ex9SN25B1A Thermal-Magnetic Manual Motor Starter: Saves Costs‚ Space & Ensures a Quick Reaction Under Short-Circuit Conditions

Ex9SN25B1A Manual motor starters are electromechanical protection devices for the main circuit and are used mainly to switch motors manually ON/OFF and protect them, as well as offering protection against short circuit and loss-phase. None-fuss protection with a manual motor starter saves costs‚ space and ensures a quick reaction under short-circuit condition‚ by switching off the motor within milliseconds. Manual motor starter combinations are setup together with contactors and overload relays.

Features

  • Available with enclosed coils for protection against particle contamination
  • Short-circuit protection
  • Disconnect function
  • Overload protection
  • Loss-phase protection
  • Suitable for three and single-phase application
  • Trip-free mechanism
  • Clear switch position indication ON/OFF/TRIP
  • Lockable handle

Specifications

  • Network Frequency: 50/60 Hz
  • Functions: Thermal-magnetic Manual Motor Starter (MMS) / Branch protector
  • Poles: 3-poles (3P)
  • Rated Current: 0.63A…1A current setting range
  • Frame Current Rating: 25 AF
  • Rated Power (HP): 1/2HP (480Vac; 3-phase; UL); 1/2HP (600Vac; 3-phase; UL)
  • Rated Operating Voltage (Ue): (AC) 230/240 V; (AC) 400/415 V; (AC) 460/480 V; (AC) 575/600 V
  • Rated Impulse Voltage (Uimp): 6 kV
  • Rated Insulation Voltage (Ui): (CSA/UL) 600 V; (IEC) 690 V
  • Ultimate Short Circuit Current Breaking Capacity (Icu): 100kA (400/415Vac); 100kA (690Vac)
  • Service Short Circuit Current Breaking Capacity (Ics): 100kA (400/415Vac); 100kA (690Vac)
  • Trip Unit Type: Technology = Thermal-Magnetic (adjustable)
  • Protection Functions: Adjustable thermal protection (Overload) Class 10A; Fixed threshold magnetic protection (Short-circuit)
  • Protection Settings: Protection against thermal overload — 0.63A…1A (adjustable); Magnetic instantaneous protection against short-circuit — 13A
  • Operating Mode: Push-btn. operation
  • Degree of Protection: IP20
  • Dimensions: H3.6″ x W1.75″ x D3.74″; H91.3mm x W44.5mm x D94.9mm
  • Ambient Air Temperature for Operation: -4…+131°F / -20…+55 °C
  • Ambient Air Temperature for Storage: -76…+176°F / -60…+80 °C

For more information on NOARK’s Contactors & Relays Manual Motor Starters HERE

Oct 9, 2025 - NOARK Ex9SN25B1A Thermal-Magnetic Manual Motor Starter (MMS)

Source

Ex9SN25B1A

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