Variable frequency drives Bt300 option boards Line
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 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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