Siemens On/off Control input
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![Siemens 242-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 24V 2-position SR actuator, fails AB-B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44685_en_c8e1cad9-11ce-40dd-8ca3-be5a311206ef_medium.jpg?v=1723872631)
242-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 24V 2-position SR actuator, fails AB-B | Siemens
Brand: Siemens
SKU: 242-00231
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![Siemens 242-00213 Zone valve, 2-way, 1", 7.0 Cv, NPT w/ 24V 2-position SR actuator fails NC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44673_en_e3422df3-83ee-46e1-8342-3fb9d7ff727a_medium.jpg?v=1723872651)
242-00213 | Zone valve, 2-way, 1", 7.0 Cv, NPT w / 24V 2-position SR actuator fails NC | Siemens
Brand: Siemens
SKU: 242-00213
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![Siemens 242-00210 Zone valve, 2-way, 1/2", 1.0 Cv, NPT w/ 24V 2-position SR actuator fails NC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44673_en_fdb30788-bb7c-4601-a506-fdc91d1d42b3_medium.jpg?v=1723872699)
242-00210 | Zone valve, 2-way, 1 / 2", 1.0 Cv, NPT w / 24V 2-position SR actuator fails NC | Siemens
Brand: Siemens
SKU: 242-00210
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![Siemens 241-00234 Zone valve, 3-way, 1/2", 4.0 Cv, NPT w/ 115V 2-pos SR actuator, fails AB-A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44685_en_238475fb-09bc-4043-bc5d-e9941946b79f_medium.jpg?v=1723872672)
241-00234 | Zone valve, 3-way, 1 / 2", 4.0 Cv, NPT w / 115V 2-pos SR actuator, fails AB-A | Siemens
Brand: Siemens
SKU: 241-00234
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![Siemens 241-00231 Zone valve, 3-way, 1/2", 2.5 Cv, NPT w/ 115V 2-pos SR actuator, fails AB-A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44688_en_6bd5212f-9ba3-48d9-8639-7445527da663_medium.jpg?v=1723872669)
241-00231 | Zone valve, 3-way, 1 / 2", 2.5 Cv, NPT w / 115V 2-pos SR actuator, fails AB-A | Siemens
Brand: Siemens
SKU: 241-00231
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![Siemens 241-00214 Zone valve, 2-way, 1/2", 4.0 Cv, NPT w/ 115V 2-position SR actuator fails NO | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44673_en_3950be6d-d0c4-4ef9-9477-40b874883d83_medium.jpg?v=1723872627)
241-00214 | Zone valve, 2-way, 1 / 2", 4.0 Cv, NPT w / 115V 2-position SR actuator fails NO | Siemens
Brand: Siemens
SKU: 241-00214
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![Siemens 241-00213 Zone valve, 2-way, 1", 7.0 Cv, NPT w/ 115V 2-position SR actuator fails NO | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44673_en_2c99475f-8b67-49aa-a67f-6ca2482e94c4_medium.jpg?v=1723872702)
241-00213 | Zone valve, 2-way, 1", 7.0 Cv, NPT w / 115V 2-position SR actuator fails NO | Siemens
Brand: Siemens
SKU: 241-00213
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![Siemens 241-00211 Zone valve, 2-way, 1/2", 2.5 Cv, NPT w/ 115V 2-position SR actuator fails NO | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44673_en_03939be2-e62e-4519-a71c-ac02b121702f_medium.jpg?v=1723872653)
241-00211 | Zone valve, 2-way, 1 / 2", 2.5 Cv, NPT w / 115V 2-position SR actuator fails NO | Siemens
Brand: Siemens
SKU: 241-00211
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View all →![Siemens 147-2000 Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/147-2000_large.jpg?v=1720021388)
147-2000 | Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Siemens
Brand: Siemens
SKU: 147-2000![Siemens 547-323A RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/547-322B-2__18675.1474097902.1280.1280_0249500b-bb5c-4841-86a5-dc4ca99e17fb_large.jpg?v=1722622317)
547-323A | RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Siemens
Brand: Siemens
SKU: 547-323A![Tekmar 564 Invita WiFi Thermostat - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/564_6a17abd4-0a05-4c6f-a187-06ce9d5eca9b_large.jpg?v=1724184090)
564 | Invita WiFi Thermostat - White | Tekmar
Brand: Tekmar
SKU: 564![Siemens GVD221.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 200 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GVD221.1U_large.jpg?v=1720094536)
GVD221.1U | Damper Actuator | Spring Return | 120 VAC | On/Off | 200 lb-in | Siemens
Brand: Siemens
SKU: GVD221.1U