variable frequency drives
Buy 2,600+ Variable Frequency Drives (VFDs) and Soft Starters: 0.25HP to 250HP, single-phase to three-phase, and 115V to 600V, with NEMA 1 or IP20 housing.
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![Siemens CFS364JN Disconnect | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/siemens-cfs364jn_medium.png?v=1695324291)
CFS364JN | Disconnect | Siemens
Brand: Siemens
SKU: CFS364JN
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![Siemens BTE-SW-KIT BTE OVERRIDE SWITCH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/siemens-bte-sw-kit_medium.jpg?v=1694541365)
BTE-SW-KIT | BTE OVERRIDE SWITCH | Siemens
Brand: Siemens
SKU: BTE-SW-KIT
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![Siemens BT300-PNL-N12 Door Panel Kit, Drive IP54 Protected, 3m | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_8456c4ff-338b-49e1-96eb-88e88b373898_medium.png?v=1692721928)
BT300-PNL-N12 | Door Panel Kit, Drive IP54 Protected, 3m | Siemens
Brand: Siemens
SKU: BT300-PNL-N12
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![Siemens BT300-OPT-C4-V BT300 VFD Option Board for LON Interface | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_27225fb5-a168-401b-bb88-27dd4b414620_medium.png?v=1692721928)
BT300-OPT-C4-V | BT300 VFD Option Board for LON Interface | Siemens
Brand: Siemens
SKU: BT300-OPT-C4-V
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![Siemens BT300-OPT-BH-V BT300 VFD Option Board: Passive Input Sensor Card | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_4f574170-7183-4ad9-9e31-554273601196_medium.png?v=1692721912)
BT300-OPT-BH-V | BT300 VFD Option Board: Passive Input Sensor Card | Siemens
Brand: Siemens
SKU: BT300-OPT-BH-V
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![Siemens BT300-OPT-BF-V BT300 VFD Option Board: 1 x AO, 1 x DO, 1 x RO | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_0d7cadf6-8783-4829-8891-e88e0f748e5b_medium.png?v=1692721933)
BT300-OPT-BF-V | BT300 VFD Option Board: 1 x AO, 1 x DO, 1 x RO | Siemens
Brand: Siemens
SKU: BT300-OPT-BF-V
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![Siemens BT300-OPT-B9-V BT300 VFD Option Board: 1 x Relay Output, 5 x DI (42 to 240 Vac) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_b759b301-1678-4c45-9584-673c85dfd716_medium.png?v=1692721912)
BT300-OPT-B9-V | BT300 VFD Option Board: 1 x Relay Output, 5 x DI (42 to 240 Vac) | Siemens
Brand: Siemens
SKU: BT300-OPT-B9-V
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![Siemens BT300-OPT-B5-V BT300 VFD Option Board: 3 x Relay Output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_24113f32-d98c-4111-ac37-f37f02b374c2_medium.png?v=1692721940)
BT300-OPT-B5-V | BT300 VFD Option Board: 3 x Relay Output | Siemens
Brand: Siemens
SKU: BT300-OPT-B5-V
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![Siemens BT300-OPT-B4-V BT300 VFD Option Board: 1 x Analog Input, 2 x Analog Output (isolated) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_69c89661-fbe4-4df3-9484-9377c94719d5_medium.png?v=1692721920)
BT300-OPT-B4-V | BT300 VFD Option Board: 1 x Analog Input, 2 x Analog Output (isolated) | Siemens
Brand: Siemens
SKU: BT300-OPT-B4-V
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![Siemens BT300-OPT-B2-V BT300 VFD Option Board: 2 x Relay output and 1 x Thermistor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_ebb14ebc-b16e-4bc6-87f5-cd1ffb35deb2_medium.png?v=1692721926)
BT300-OPT-B2-V | BT300 VFD Option Board: 2 x Relay output and 1 x Thermistor | Siemens
Brand: Siemens
SKU: BT300-OPT-B2-V
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![Siemens BT300-OPT-B1-V BT300 VFD Option Board: 6 x DI/DO, each programmable as input or output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_7e15de88-159c-4f84-b4c5-62e5a159b29c_medium.png?v=1692721923)
BT300-OPT-B1-V | BT300 VFD Option Board: 6 x DI / DO, each programmable as input or output | Siemens
Brand: Siemens
SKU: BT300-OPT-B1-V
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![Siemens BT300-MTERM-FS7 MAIN TERMINALS FS7 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_e47320d2-8fa3-4eda-8fae-620342b758f2_medium.png?v=1692721924)
BT300-MTERM-FS7 | MAIN TERMINALS FS7 | Siemens
Brand: Siemens
SKU: BT300-MTERM-FS7
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![Siemens BT300-MTERM-FS6 MAIN TERMINALS FS6 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_a3039d9b-33e4-4582-adb8-8bee8f192252_medium.png?v=1692721926)
BT300-MTERM-FS6 | MAIN TERMINALS FS6 | Siemens
Brand: Siemens
SKU: BT300-MTERM-FS6
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![Siemens BT300-MFAN-FS9 MAIN FAN FS9 48VDC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_fe029893-3f65-49b6-8e3c-28ec9b7c57d2_medium.png?v=1692721926)
BT300-MFAN-FS9 | MAIN FAN FS9 48VDC | Siemens
Brand: Siemens
SKU: BT300-MFAN-FS9
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![Siemens BT300-MFAN-FS8 MAIN FAN FS8 48VDC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_7f69621e-ca68-43b5-a639-b897228bab0e_medium.png?v=1692721937)
BT300-MFAN-FS8 | MAIN FAN FS8 48VDC | Siemens
Brand: Siemens
SKU: BT300-MFAN-FS8
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![Siemens BT300-MFAN-FS6 MAIN FAN FS6 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_f76e82fc-1749-4e46-b55c-5c8728b8ee8d_medium.png?v=1692721920)
BT300-MFAN-FS6 | MAIN FAN FS6 | Siemens
Brand: Siemens
SKU: BT300-MFAN-FS6
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![Siemens BT300-INTFAN-FS9 INTERNAL FAN FS9 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_eb94a90a-f270-48bc-8b2c-d63195ea1236_medium.png?v=1692721929)
BT300-INTFAN-FS9 | INTERNAL FAN FS9 | Siemens
Brand: Siemens
SKU: BT300-INTFAN-FS9
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![Siemens BT300-FLG-FS7 Flange Mounting Kit, BT300 VFD Frame Size 7, HVAC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_5fb8637a-f6ef-480d-8070-f00434d79eb7_medium.png?v=1692721911)
BT300-FLG-FS7 | Flange Mounting Kit, BT300 VFD Frame Size 7, HVAC | Siemens
Brand: Siemens
SKU: BT300-FLG-FS7
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![Siemens BT300-FLG-FS6 Flange Mounting Kit, BT300 VFD Frame Size 6, HVAC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_55f4005a-868d-4bcd-821f-c36400d28396_medium.png?v=1692721913)
BT300-FLG-FS6 | Flange Mounting Kit, BT300 VFD Frame Size 6, HVAC | Siemens
Brand: Siemens
SKU: BT300-FLG-FS6
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![Siemens BT300-FLG-FS5 Flange Mounting Kit, BT300 VFD Frame Size 5, HVAC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_7f7a1836-13cb-4b9f-9939-c2df945553f2_medium.png?v=1692721911)
BT300-FLG-FS5 | Flange Mounting Kit, BT300 VFD Frame Size 5, HVAC | Siemens
Brand: Siemens
SKU: BT300-FLG-FS5
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![Siemens BT300-FLG-FS4-F Flange Mounting Kit for FS4 (serial number C1408xxxx and later) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_a8f2ca83-422d-44aa-afbc-ec170017b9bd_medium.png?v=1692721907)
BT300-FLG-FS4-F | Flange Mounting Kit for FS4 (serial number C1408xxxx and later) | Siemens
Brand: Siemens
SKU: BT300-FLG-FS4-F
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![Siemens BT300-EMCKIT-FS6 EMC FILTER KIT, FS6 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_98109fdd-7b67-4251-87c9-29eb18292434_medium.png?v=1692721914)
BT300-EMCKIT-FS6 | EMC FILTER KIT, FS6 | Siemens
Brand: Siemens
SKU: BT300-EMCKIT-FS6
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![Siemens BT300-EMCKIT-FS5 EMC FILTER KIT, FS5 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_e046d708-4758-4688-b088-aaf0b15a6cdd_medium.png?v=1692721910)
BT300-EMCKIT-FS5 | EMC FILTER KIT, FS5 | Siemens
Brand: Siemens
SKU: BT300-EMCKIT-FS5
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![Siemens BT300-EMCKIT-FS4 EMC FILTER KIT, FS4 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_5233033a-36ad-4693-a234-bdcfd9ebaa24_medium.png?v=1692721907)
BT300-EMCKIT-FS4 | EMC FILTER KIT, FS4 | Siemens
Brand: Siemens
SKU: BT300-EMCKIT-FS4
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