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NEMA Motor Starters
Non-Reversing Starters with Thermal Overloads
These non-reversing NEMA motor starters with thermal overload relays connect and disconnect power to motors and other high-current equipment and machinery in a single direction. Thermal overloads, also known as heaters, prompt motor starters to break electrical connections with downstream equipment once a set temperature is reached to protect connected loads from overheating and causing damage. They contain either bimetallic strips or melting alloy solder materials. When the current exceeds a predetermined threshold and temperatures rise, the material bends or liquefies, causing the thermal unit to break the circuit and cause the motor starter to break its power contacts. As the materials cool down, they will return to their normally closed position and the circuit can be reset automatically or manually.
2 Pole / Single Phase Starters
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2 Pole / Three Phase Starters
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3 Pole / Three Phase Starters
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Non-Reversing Starters with Electronic Overloads
These non-reversing NEMA motor starters with electronic overload relays connect and disconnect power to motors and other high-current equipment and machinery in a single direction. Electronic overload relays trigger motor starters to break electrical connections with downstream equipment once the current reaches a pre-determined range of full-load amperage. They have adjustable current settings and use semiconductors to monitor for overload conditions and trip once the current exceeds that set point. Electronic overload relays turn circuits on and off faster, are more accurate, and have longer service lives than thermal overload relays.
3 Pole / Three Phase Starters
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Enclosed Non-Reversing Starters with Thermal Overloads
These non-reversing NEMA motor starters with thermal overloads have enclosures that protect their internal components from impacts, debris, and dust. Non-reversing motor starters connect and disconnect power to motors and other high-current equipment and machinery in a single direction. Thermal overloads, also known as heaters, prompt motor starters to break electrical connections with downstream equipment once a set temperature is reached to protect connected loads from overheating and causing damage. They contain either bimetallic strips or melting alloy solder materials. When the current exceeds a predetermined threshold and temperatures rise, the material bends or liquefies, causing the thermal unit to break the circuit and cause the motor starter to break its power contacts. As the materials cool down, they will return to their normally closed position and the circuit can be reset automatically or manually.
2 Pole / Single Phase Starters
NEMA Enclosure Rating: 1
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2 Pole / Three Phase Starters
NEMA Enclosure Rating: 1
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3 Pole / Three Phase Starters
NEMA Enclosure Rating: 1
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NEMA Enclosure Rating: 12
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NEMA Enclosure Rating: 4X
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Enclosed Non-Reversing Starters with Electronic Overloads
These non-reversing NEMA motor starters with electronic overloads have enclosures that protect their internal components from impacts, debris, and dust. Non-reversing motor starters connect and disconnect power to motors and other high-current equipment and machinery in a single direction. Electronic overload relays trigger motor starters to break electrical connections with downstream equipment once the current reaches a pre-determined range of full-load amperage. They have adjustable current settings and use semiconductors to monitor for overload conditions and trip once the current exceeds that set point. Electronic overload relays turn circuits on and off faster, are more accurate, and have longer service lives than thermal overload relays.
3 Pole / Three Phase Motor Starters
NEMA Enclosure Rating: 1
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NEMA Enclosure Rating: 12
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NEMA Enclosure Rating: 3R
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NEMA Enclosure Rating: 4X
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Enclosed Reversing Starters with Thermal Overloads
These reversing NEMA motor starters with thermal overloads have enclosures that protect their internal components from impacts, debris, and dust. Reversing motor starters invert current flow to allow motors to operate in forward and reverse directions. Thermal overloads, also known as heaters, prompt motor starters to break electrical connections with downstream equipment once a set temperature is reached to protect connected loads from overheating and causing damage. They contain either bimetallic strips or melting alloy solder materials. When the current exceeds a predetermined threshold and temperatures rise, the material bends or liquefies, causing the thermal unit to break the circuit and cause the motor starter to break its power contacts. As the materials cool down, they will return to their normally closed position and the circuit can be reset automatically or manually.
3 Pole / Three Phase Starters
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