siemens
Choose from 12000+ Siemens products, from accessories and components to meters, controllers, valves and actuators. Shop today!
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![Siemens 171A-10305S 2W 1/2", 4Cv ball valve assy, stainless steel ball and stem, floating NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/171A-10305S_medium.jpg?v=1720021393)
171A-10305S | 2W 1 / 2", 4Cv ball valve assy, stainless steel ball and stem, floating NSR | Siemens
Brand: Siemens
SKU: 171A-10305S
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![Siemens 171A-10303S 2W 1/2", 1.6Cv ball valve assy, stainless steel ball and stem, floating NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/171A-10303S_medium.jpg?v=1720021389)
171A-10303S | 2W 1 / 2", 1.6Cv ball valve assy, stainless steel ball and stem, floating NSR | Siemens
Brand: Siemens
SKU: 171A-10303S
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![Siemens 171A-10302S 2W 1/2", 1Cv ball valve assembly, stainless steel ball and stem, floating NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/171A-10302S_medium.jpg?v=1720021409)
171A-10302S | 2W 1 / 2", 1Cv ball valve assembly, stainless steel ball and stem, floating NSR | Siemens
Brand: Siemens
SKU: 171A-10302S
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![Siemens 171A-10302 2W 1/2", 1Cv ball valve assy, chrome-plat brass ball & brass stem, float NSR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/171A-10302_medium.jpg?v=1720021394)
171A-10302 | 2W 1 / 2", 1Cv ball valve assy, chrome-plat brass ball & brass stem, float NSR | Siemens
Brand: Siemens
SKU: 171A-10302
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![Siemens SCT-SCS-0050-U Current Transformer, MD Series, 50-Amp, 333mV small, 0.75" window | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_de9b47a6-3d2d-467a-a334-e50385071b42_medium.png?v=1720023829)
SCT-SCS-0050-U | Current Transformer, MD Series, 50-Amp, 333mV small, 0.75" window | Siemens
Brand: Siemens
SKU: SCT-SCS-0050-U
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![Siemens SCT-SCM-0600-U Current Transformer, MD Series, 600-Amp, 333mV medium, 1.25" window | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_e37103f3-d3e4-49b4-b367-81fee098a37c_medium.png?v=1720023835)
SCT-SCM-0600-U | Current Transformer, MD Series, 600-Amp, 333mV medium, 1.25" window | Siemens
Brand: Siemens
SKU: SCT-SCM-0600-U
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![Siemens SCT-SCM-0400-U Current Transformer, MD Series, 400-Amp, 333mV medium, 1.25" window | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_8bc50b8e-a915-4709-9a50-ba0f27c6e63e_medium.png?v=1720023832)
SCT-SCM-0400-U | Current Transformer, MD Series, 400-Amp, 333mV medium, 1.25" window | Siemens
Brand: Siemens
SKU: SCT-SCM-0400-U
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![Siemens SCT-SCL-1000-U Current Transformer, MD Series, 1000-Amp, 333mV large, 2" window | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_2c1b5a7f-c2a4-4577-81c4-fc63e924802f_medium.png?v=1720023825)
SCT-SCL-1000-U | Current Transformer, MD Series, 1000-Amp, 333mV large, 2" window | Siemens
Brand: Siemens
SKU: SCT-SCL-1000-U
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![Siemens SCT-SCL-0600-U Current Transformer, MD Series, 600-Amp, 333mV large, 2" window | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_a7efd4e3-00bb-45f5-b93a-a810f0a4a998_medium.png?v=1720023826)
SCT-SCL-0600-U | Current Transformer, MD Series, 600-Amp, 333mV large, 2" window | Siemens
Brand: Siemens
SKU: SCT-SCL-0600-U
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![Siemens SCT-R24-A4-U Rogowski Coil CT, MD series Meter, 4000-Amp, 24" coil (7" dia window ) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_86143844-25a8-43f8-90df-386758958eab_medium.png?v=1720023833)
SCT-R24-A4-U | Rogowski Coil CT, MD series Meter, 4000-Amp, 24" coil (7" dia window ) | Siemens
Brand: Siemens
SKU: SCT-R24-A4-U
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![Siemens RLA162.5U ROOM T'STAT H & C (2) 0-10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_dd75bbc6-1460-4a2a-80c5-9077ee27c062_medium.png?v=1692723028)
RLA162.5U | ROOM T'STAT H & C (2) 0-10V | Siemens (OBSOLETE)
Brand: Siemens
SKU: RLA162.5U
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![Siemens RDX42.22U RM CONTRL 24V 2-P W/ FAN SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_34c05b0f-e691-4de2-9874-1cf0f1aa6a79_medium.png?v=1692723002)
RDX42.22U | RM CONTRL 24V 2-P W / FAN SW | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDX42.22U
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![Siemens RDU50U RM CTRL 0-10V OUT AUTO C/O | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_7ef88075-a3c6-462a-9ead-39f6d14c24c8_medium.png?v=1692723011)
RDU50U | RM CTRL 0-10V OUT AUTO C / O | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDU50U
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![Siemens RDU50.2U RM CTRL 0-10V OUT MAN C/O | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_53427ee9-82dd-42ee-bd0b-afb80322aa09_medium.png?v=1692723021)
RDU50.2U | RM CTRL 0-10V OUT MAN C / O | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDU50.2U
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![Siemens RDU20U ROOM CONTROLLER, 24VAC, 3P MOD / ON-OFF | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_c12f68b7-36ec-4875-b91a-acca41a03d5c_medium.png?v=1692723000)
RDU20U | ROOM CONTROLLER, 24VAC, 3P MOD / ON-OFF | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDU20U
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![Siemens RDF50.1U TSTAT FN CL H OR C 0.10V LCD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_7e9c275c-8ba2-4e9d-8a0f-5cf9a5d3f653_medium.png?v=1692723031)
RDF50.1U | TSTAT FN CL H OR C 0.10V LCD | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDF50.1U
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![Siemens RDF30UT 2-4 PIPE FC STAT W/LCD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_6db71042-2c83-4a6e-9cad-383970d6d6c8_medium.png?v=1692723013)
RDF30UT | 2-4 PIPE FC STAT W / LCD | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDF30UT
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![Siemens RDF30U CONTROLLER 4 PIPE FAN COIL | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_643989f3-9e7f-45cb-8518-789266690954_medium.png?v=1692723025)
RDF30U | CONTROLLER 4 PIPE FAN COIL | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDF30U
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![Siemens RDF20U TSTAT FN CL HORC 2.P EL LCD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_0ae9b5be-8eef-475a-bfff-dd25a48962a6_medium.png?v=1692723019)
RDF20U | TSTAT FN CL HORC 2.P EL LCD | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDF20U
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![Siemens RDF10UT 2-PIPE FC STAT W/LCD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_ff3bcd8a-37da-43d2-95a1-b6b8b3ac1de2_medium.png?v=1692722998)
RDF10UT | 2-PIPE FC STAT W / LCD | Siemens (OBSOLETE)
Brand: Siemens
SKU: RDF10UT
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![Siemens RCU61U VAV/CAV,P 0-10V/3P DEG.W/C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_df6d354d-14de-4e2d-b625-8fd562ad45e4_medium.png?v=1692723024)
RCU61U | VAV / CAV, P 0-10V / 3P DEG.W / C | Siemens (OBSOLETE)
Brand: Siemens
SKU: RCU61U
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![Siemens RCU50U VAV/CAV,P 0-10V DEG W/C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_258421ff-2155-4471-bacf-96feb3ce5d54_medium.png?v=1720023794)
RCU50U | VAV / CAV, P 0-10V DEG W / C | Siemens (OBSOLETE)
Brand: Siemens
SKU: RCU50U
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![Siemens RCU15U RM CONTROLLER (2) PWM,ON/OFF OUTPUTS | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_869b3c47-a61c-4e96-89f0-8a5e1a7f66ea_medium.png?v=1692722998)
RCU15U | RM CONTROLLER (2) PWM, ON / OFF OUTPUTS | Siemens (OBSOLETE)
Brand: Siemens
SKU: RCU15U
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![Siemens RCC10U 2P FN CL PI 2P DEG.W/C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/logo_8bd38d2a-0747-4789-aa05-ef5fd0e17342_medium.png?v=1692723022)
RCC10U | 2P FN CL PI 2P DEG.W / C | Siemens (OBSOLETE)
Brand: Siemens
SKU: RCC10U
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