
Eaton Cutler-Hammer MST02SN Starter
The Eaton Cutler-Hammer MST02SN is a heavy-duty manual motor starter designed for dependable single-phase motor control in commercial and industrial HVACR applications. Built to NEMA 1 standards, this 2-pole, toggle-operated starter provides local ON/OFF switching and reliable overload protection for small motors up to 1 horsepower at 115V or 2 horsepower at 230V. This Type MST starter utilizes a compact, open-frame design that integrates easily into standard junction boxes or existing control panels. The MST02SN starter is engineered with high-quality contacts and a rugged mechanism to handle high inrush currents, ensuring longevity in high-cycle environments. To ensure proper circuit protection, a Type MS heater element must be installed separately, sized to the motor's full load amps (FLA). This NEMA 1 enclosed starter offers a cost-effective solution for protecting fractional horsepower motors against burnout caused by sustained overloads.
Technical Specifications and Benefits
- 2-Pole Configuration suitable for interrupting both lines of a single-phase circuit.
- NEMA 1 Enclosure protects internal components against dust and light physical contact.
- Toggle Switch Control provides a clear visual indication of the motor’s status for field technicians.
- Type MS Compatibility allows for precise overload protection when paired with the correct heater.
- UL and CSA Listed ensuring compliance with standard electrical safety codes.
Field Support & Common Questions
How do I select the correct heater for the MST02SN?
Heater selection is based on the motor's nameplate Full Load Amps (FLA). Always consult the Eaton heater selection table and apply a 1.15 to 1.25 service factor if required by the manufacturer.
Can this starter be used for DC motor applications?
The MST02SN is primarily rated for AC single-phase applications. Verify the specific DC voltage and amperage requirements against the Eaton technical datasheet before installation.
Does this unit come with an integrated pilot light?
The standard MST02SN is non-illuminated. If visual feedback is required at the station, an optional pilot light kit must be field-installed or a different MST model should be selected.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $145.71
-65%$145.71
$51.00Eaton Cutler-Hammer MST02SN Starter
The Eaton Cutler-Hammer MST02SN is a heavy-duty manual motor starter designed for dependable single-phase motor control in commercial and industrial HVACR applications. Built to NEMA 1 standards, this 2-pole, toggle-operated starter provides local ON/OFF switching and reliable overload protection for small motors up to 1 horsepower at 115V or 2 horsepower at 230V. This Type MST starter utilizes a compact, open-frame design that integrates easily into standard junction boxes or existing control panels. The MST02SN starter is engineered with high-quality contacts and a rugged mechanism to handle high inrush currents, ensuring longevity in high-cycle environments. To ensure proper circuit protection, a Type MS heater element must be installed separately, sized to the motor's full load amps (FLA). This NEMA 1 enclosed starter offers a cost-effective solution for protecting fractional horsepower motors against burnout caused by sustained overloads.
Technical Specifications and Benefits
- 2-Pole Configuration suitable for interrupting both lines of a single-phase circuit.
- NEMA 1 Enclosure protects internal components against dust and light physical contact.
- Toggle Switch Control provides a clear visual indication of the motor’s status for field technicians.
- Type MS Compatibility allows for precise overload protection when paired with the correct heater.
- UL and CSA Listed ensuring compliance with standard electrical safety codes.
Field Support & Common Questions
How do I select the correct heater for the MST02SN?
Heater selection is based on the motor's nameplate Full Load Amps (FLA). Always consult the Eaton heater selection table and apply a 1.15 to 1.25 service factor if required by the manufacturer.
Can this starter be used for DC motor applications?
The MST02SN is primarily rated for AC single-phase applications. Verify the specific DC voltage and amperage requirements against the Eaton technical datasheet before installation.
Does this unit come with an integrated pilot light?
The standard MST02SN is non-illuminated. If visual feedback is required at the station, an optional pilot light kit must be field-installed or a different MST model should be selected.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Eaton Cutler-Hammer MST02SN is a heavy-duty manual motor starter designed for dependable single-phase motor control in commercial and industrial HVACR applications. Built to NEMA 1 standards, this 2-pole, toggle-operated starter provides local ON/OFF switching and reliable overload protection for small motors up to 1 horsepower at 115V or 2 horsepower at 230V. This Type MST starter utilizes a compact, open-frame design that integrates easily into standard junction boxes or existing control panels. The MST02SN starter is engineered with high-quality contacts and a rugged mechanism to handle high inrush currents, ensuring longevity in high-cycle environments. To ensure proper circuit protection, a Type MS heater element must be installed separately, sized to the motor's full load amps (FLA). This NEMA 1 enclosed starter offers a cost-effective solution for protecting fractional horsepower motors against burnout caused by sustained overloads.
Technical Specifications and Benefits
- 2-Pole Configuration suitable for interrupting both lines of a single-phase circuit.
- NEMA 1 Enclosure protects internal components against dust and light physical contact.
- Toggle Switch Control provides a clear visual indication of the motor’s status for field technicians.
- Type MS Compatibility allows for precise overload protection when paired with the correct heater.
- UL and CSA Listed ensuring compliance with standard electrical safety codes.
Field Support & Common Questions
How do I select the correct heater for the MST02SN?
Heater selection is based on the motor's nameplate Full Load Amps (FLA). Always consult the Eaton heater selection table and apply a 1.15 to 1.25 service factor if required by the manufacturer.
Can this starter be used for DC motor applications?
The MST02SN is primarily rated for AC single-phase applications. Verify the specific DC voltage and amperage requirements against the Eaton technical datasheet before installation.
Does this unit come with an integrated pilot light?
The standard MST02SN is non-illuminated. If visual feedback is required at the station, an optional pilot light kit must be field-installed or a different MST model should be selected.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












