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Switching into safety engineering - Distinguishing normal switches and safety switches - Drives and Controls Magazine
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Siemens HNF361 240/480/600 VAC 250 VDC 30 Amp 3-Pole 3-Wire NEMA 1 Heavy Duty Non-Fusible Safety Switch | Quality Electrical Distribution (QED)
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Siemens 30 Amp 3-Pole Fusible Heavy-duty Safety Switch Disconnect in the Electrical Disconnects department at Lowes.com
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