Solid State Motor Starters and Contactors
Description
Solid State Motor Starters and Contactors are devices used to control the starting and stopping of electric motors. They are designed to manage the electrical power supplied to the motor, ensuring efficient operation and protection against electrical faults.
Working Principle
Solid State Motor Starters operate by using a central processor unit that receives information from the starting circuit, line voltage, and line current. This allows the starter to efficiently manage the motor's operation by monitoring the line current, especially during the start-up sequence, to limit the current flow to about 300% of the full-load current. This monitoring helps protect the motor from overloading and overheating by taking necessary actions if any phase voltage deviates or disappears . Solid-state relays in these starters measure current or changes in resistance to trip a circuit without generating heat .
Applications
Solid State Motor Starters are used in various industrial applications where precise control of motor operation is required. They are particularly useful in environments where reducing or reversing motor starters are needed to avoid overload conditions and minimize wear and tear on equipment .
Advantages over other Motor Starters and Contactors
Solid State Motor Starters offer several advantages over traditional motor starters. They provide more precise control over the motor's start-up current, reducing the risk of electrical faults and mechanical stress on the motor. Unlike bimetallic or eutectic overload relays, solid-state relays do not rely on heat generation to trip circuits, which can lead to more reliable and efficient operation .
Limitations
One limitation of Solid State Motor Starters is the need for an operator to manually start and stop the motor, which may not be ideal for fully automated systems .
Considerations
When considering Solid State Motor Starters, it is important to evaluate the initial costs, which may be higher than traditional starters due to the advanced technology involved. However, the operating expenses can be lower due to increased efficiency and reduced maintenance needs. Durability and accuracy are generally high, but replacement and maintenance costs should be factored into the overall cost of ownership.
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Disconnect Type, NEMA 1, 240 Volts (A), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Disconnect Type, NEMA 1, 240/110/120 VAC - 50/60Hz (AD), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Disconnect Type, NEMA 1, 240 Volts (A), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 240
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Disconnect Type, NEMA 1, 480 Volts (B), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 480
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Circuit Breaker Type, NEMA 1, 480 Volts (B), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Circuit Breaker Type, NEMA 3, 480 Volts (B), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 480
from Allen-Bradley / Rockwell Automation
NEMA Pump Control Panel, Circuit Breaker Type, NEMA 1, 240 Volts (A), Type 3R - Enclosure Code N"- Pump Panel" [See More]
- Overload Protection: Solid State
- Control Voltage: 240
from Allen-Bradley / Rockwell Automation
Available from RCC, IEC Enclosed Metal QC Starters 9 A, Type 1 - IP42 Metal Enclosure, 220V 50Hz / 240V 60Hz / 220V 50HZ Transformed 110V 50HZ / 240V 60HZ Transformed 120V 60HZ, 0.1..0.5A [See More]
- Overload Protection: Solid State
- NEMA Size: 1
- Standard Rating: NEMA; IEC
from Allen-Bradley / Rockwell Automation
Available from RCC, 505 NEMA Enclosed Reversing Starter ,SIZE 1, Type 7 & 9 Unilock Hazardous Locations, Cast Aluminum, External Reset, V-Band with One Bolt Fastener, 115-120V 60Hz, 115-120V 60Hz , , [See More]
- Overload Protection: Solid State
from Allen-Bradley / Rockwell Automation
505 NEMA Full Voltage Reversing Starter ,SIZE 4, Open, 230-240V 60Hz, with E1 Plus Solid-State Overload Relay, , 230-240V 60Hz, , [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
from Allen-Bradley / Rockwell Automation
NEMA Combination Reversing Starter, Disconnect Type, NEMA 0, 240 Volts (A), Type 1 - Enclosure Code A"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Combination Reversing Starter, Disconnect Type, NEMA 1, 480 Volts (B), Type 1 - Enclosure Code A"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Combination Reversing Starter, Circuit Breaker Type, NEMA 0, 480 Volts (B), Type 4/4X - Enclosure Code C"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Combination Reversing Starter, Circuit Breaker Type, NEMA 0, 480 Volts (B), Type 3R, 7 & 9 Bolted - Enclosure Code H"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter, Disconnect Type, NEMA 0, 240 Volts (A), Type 1 - Enclosure Code A"" [See More]
- Overload Protection: Solid State
from Allen-Bradley / Rockwell Automation
Available from RCC, NEMA Combination Starter, Disconnect Type, NEMA 0, 480 Volts (B), Type 1 - Enclosure Code A"" [See More]
- Overload Protection: Solid State
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter with Extra Panel Space, Disconnect Type, NEMA 1, 480/24 VAC - 50/60Hz (BJ), Type 4/4X - Enclosure Code C"" [See More]
- Overload Protection: Solid State
- Control Voltage: 24
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter with Extra Panel Space, Disconnect Type, NEMA 1, 480 Volts (B), Type 3R/4/12 - Enclosure Code F"" [See More]
- Overload Protection: Solid State
- Control Voltage: 480
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter, Circuit Breaker Type, NEMA 0, 240 Volts (A), Type 1 - Enclosure Code A"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter with Extra Panel Space, Circuit Breaker Type, NEMA 1, 480 Volts (B), Type 4/4X - Enclosure Code C"" [See More]
- Overload Protection: Solid State
- Control Voltage: 120
from Allen-Bradley / Rockwell Automation
NEMA Full Voltage Non-Reversing Starter,SIZE 0,230-240V 60Hz,Open Type Without Enclosure, with E1 Plus Solid-State Overload Relay [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- Motor Voltage: 240
from Allen-Bradley / Rockwell Automation
NEMA Full Voltage Non-Reversing Starter,SIZE 0,115-120V 60Hz,Open Type Without Enclosure, with E1 Plus Solid-State Overload Relay [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- Number of Poles: 3
from Allen-Bradley / Rockwell Automation
NEMA Full Voltage Non-Reversing Starter,SIZE 2,230-240V 60Hz,Open Type Without Enclosure, with E1 Plus Solid-State Overload Relay [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- Motor Voltage: 240
from Allen-Bradley / Rockwell Automation
NEMA Full Voltage Non-Reversing Starter,SIZE 4,230-240V 60Hz,Open Type Without Enclosure, with E1 Plus Solid-State Overload Relay [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- Motor Voltage: 240
from Allen-Bradley / Rockwell Automation
NEMA Combination Starter, Disconnect Type, NEMA 3, 600/110/120 VAC - 50/60Hz (CD), Type 4/4X - Enclosure Code C"" [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- NEMA Size: 4
from Eaton Corporation
FULL VOLTAGE, NON REVERSING TYPE. IEC B, FRAME 45 MM SIZE. 18 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 4 KW AT 220/240 V 50/60 HZ 3 PHASE, 7.5 KW AT 380 V 50/60 HZ 3 PHASE, 9 KW AT 400/415/460/500/550/575 V 50/60 HZ 3 PHASE POWER... [See More]
- Overload Protection: Solid State
- IEC Size: B
- AC Motor Phase: Single; Three
- Continuous Current: 18
from Stearns®
Features & Benefits. Our solid-state switch is superior to mechanical switches. Extends the life and reliability of the motor, especially for high-cycling or “dirty ” environments. Fast and easy to install and replace mechanical switches. Sealed, spark-free switch for challenging... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single
- Device Technology: Solid State
- Continuous Current: 35 to 50
from WorldWide Electric Corporation
Solid state ESP200 overload relay. Wide range of enclosure types available. Flexibility with field modifications. 100 KA short circuit current rating when protected with class R fuses to 600V. Industrial type disconnect handle. Visible blade disconnect. Easy to install. Coil Table. 60 Hz Voltage -... [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- NEMA Size: 0
from OMEGA Engineering, Inc.
The Cutler-Hammer Electro-Mechanical Motor Starter consists of an electro-mechanical contact block or contactor and electromechanical solid-state overload relay as a full voltage non-reversing (FVNR) device. Size 00 to 2 motor starters are factory assembled. SPECIFICATIONS. Dimensions: Size 00 and... [See More]
- Overload Protection: Solid State
- Device Technology: Solid State; Electro-mechanical
- Standard Rating: NEMA
- NEMA Size: 00; 0; 1; 2
from Eaton Corporation
FULL VOLTAGE, NON REVERSING TYPE. IEC C, FRAME 54 MM SIZE. 40 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 11 KW AT 220/240 V 50/60 HZ 3 PHASE, 18.5 KW AT 380/400/415 V 50/60 HZ 3 PHASE, 22 KW AT 460/500/550/575 V 50/60 HZ 3 PHASE... [See More]
- Overload Protection: Solid State
- IEC Size: C
- AC Motor Phase: Single; Three
- Continuous Current: 40
from Stearns®
Features & Benefits. Our solid-state switch is superior to mechanical switches. Extends the life and reliability of the motor, especially for high-cycling or “dirty ” environments. Fast and easy to install and replace mechanical switches. Sealed, spark-free switch for challenging... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single
- Device Technology: Solid State
- Continuous Current: 35 to 50
from WorldWide Electric Corporation
True phase loss protection - trips within 3 seconds. Phase unbalanced prevents motor running inefficiently. Ground fault trip when selected. Selectable trip class: 5, 10, 20 or 30. Reset trip can be selected auto/manual reset. Overload is self powered. No need for external power source. Dual... [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
- Standard Rating: NEMA
- NEMA Size: 00
from Eaton Corporation
FULL VOLTAGE, NON REVERSING TYPE. IEC D, FRAME 76 MM SIZE. 100 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 25 KW AT 220/240 V 50/60 HZ 3 PHASE, 51 KW AT 380 V 50/60 HZ 3 PHASE, 55 KW AT 400/415 V 50/60 HZ 3 PHASE, 59 KW AT... [See More]
- Overload Protection: Solid State
- IEC Size: D
- AC Motor Phase: Single; Three
- Continuous Current: 100
from Stearns®
Features & Benefits. Our solid-state switch is superior to mechanical switches. Extends the life and reliability of the motor, especially for high-cycling or “dirty ” environments. Fast and easy to install and replace mechanical switches. Sealed, spark-free switch for challenging... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single
- Device Technology: Solid State
- Continuous Current: 16 to 50
from WorldWide Electric Corporation
Heavy duty NEMA starters. Fully gasketed NEMA 3R rainproof enclosures. 100 KA interrupting capacity with class R fuses. Solid state or ambient compensated bi-metal overload relays. Copper grounding lug for three #6 wires. Heavy duty disconnect handle. Bold pilot legend. Generous accessory space. CSA... [See More]
- Overload Protection: Solid State
- NEMA Size: 1
- Standard Rating: NEMA
- Continuous Current: 10 to 40
from Eaton Corporation
FULL VOLTAGE, NON REVERSING TYPE. IEC E, FRAME 105 MM SIZE. 125 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 33 KW AT 220/240 V 50/60 HZ 3 PHASE, 63 KW AT 380/400/415 V 50/60 HZ 3 PHASE, 75 KW AT 460/500/550/575 V 50/60 HZ 3 PHASE... [See More]
- Overload Protection: Solid State
- IEC Size: E
- AC Motor Phase: Single; Three
- Continuous Current: 125
from Stearns®
Features & Benefits. Our solid-state switch is superior to mechanical switches. Extends the life and reliability of the motor, especially for high-cycling or “dirty ” environments. Fast and easy to install and replace mechanical switches. Sealed, spark-free switch for challenging... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single
- Device Technology: Solid State
- Continuous Current: 16 to 50
from WorldWide Electric Corporation
Service entrance rated. Simple operation / easy to use. NEMA 4 enclosure. Full panel surge protection. Advanced motor protection. Circuit breaker and door operator disconnect (fused disconnect on 20 HP and 25HP). Three wire in, three wire out installation. REMOTE / OFF / ON selector switch for local... [See More]
- Overload Protection: Solid State
- Device Technology: Solid State
from Eaton Corporation
FULL VOLTAGE, REVERSING TYPE. IEC B, FRAME 45 MM SIZE. 18 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 4 KW AT 220/240 V 50/60 HZ 3 PHASE, 7.5 KW AT 380 V 50/60 HZ 3 PHASE, 9 KW AT 400/415/440/460/500/550/575 V 50/60 HZ 3 PHASE POWER... [See More]
- Overload Protection: Solid State
- IEC Size: B
- AC Motor Phase: Single; Three
- Continuous Current: 18
from Eaton Corporation
FULL VOLTAGE, REVERSING TYPE. IEC C, FRAME 54 MM SIZE. 40 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 11 KW AT 220/240 V 50/60 HZ 3 PHASE, 18.5 KW AT 380/400/415 V 50/60 HZ 3 PHASE, 22 KW AT 440/460/500/550/575 V 50/60 HZ 3 PHASE... [See More]
- Overload Protection: Solid State
- IEC Size: C
- AC Motor Phase: Single; Three
- Continuous Current: 40
from Eaton Corporation
FULL VOLTAGE, REVERSING TYPE. IEC D, FRAME 76 MM SIZE. 100 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 25 KW AT 220/240 V 50/60 HZ 3 PHASE, 51 KW AT 380 V 50/60 HZ 3 PHASE, 55 KW AT 400/415 V 50/60 HZ 3 PHASE, 59 KW AT... [See More]
- Overload Protection: Solid State
- IEC Size: D
- AC Motor Phase: Single; Three
- Continuous Current: 100
from Eaton Corporation
FULL VOLTAGE, REVERSING TYPE. IEC E, FRAME 105 MM SIZE. 125 AMPERE AT 480 VAC (AC-3) CURRENT RATING. OPEN ENCLOSURE TYPE. IEC CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 33 KW AT 220/240 V 50/60 HZ 3 PHASE, 63 KW AT 380/400/415 V 50/60 HZ 3 PHASE, 75 KW AT 460/500/550/575 V 50/60 HZ 3 PHASE POWER... [See More]
- Overload Protection: Solid State
- IEC Size: E
- AC Motor Phase: Single; Three
- Continuous Current: 125
from Eaton Corporation
FULL VOLTAGE, NON REVERSING TYPE. NEMA 0 SIZE. 18 AMPERE CURRENT RATING. OPEN ENCLOSURE TYPE. NEMA CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 1 HP AT 115 V 60 HZ 1 PHASE, 2 HP AT 230 V 60 HZ 1 PHASE, 3 HP AT 200/208/230/240 V 60 HZ 3 PHASE, 5 HP AT 460/480/575/600 V 60 HZ 3 PHASE, 5 HP AT 380 V 50... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single; Three
- Standard Rating: NEMA
- NEMA Size: 0
from Eaton Corporation
FULL VOLTAGE, REVERSING TYPE. NEMA 0 SIZE. 18 AMPERE CURRENT RATING. OPEN ENCLOSURE TYPE. NEMA CONSTRUCTION STANDARD. 24 VDC COIL VOLTAGE. 1 HP AT 115 V 60 HZ 1 PHASE, 2 HP AT 230 V 60 HZ 1 PHASE, 3 HP AT 200/208/230/240 V 60 HZ 3 PHASE, 5 HP AT 460/480/575/600 V 60 HZ 3 PHASE, 5 HP AT 380 V 50 HZ 3... [See More]
- Overload Protection: Solid State
- AC Motor Phase: Single; Three
- Standard Rating: NEMA
- NEMA Size: 0