Power Of Precision
Power Of Precision | Electrical Switches | Electrical | Erwin
At HEP’s Erwin facility, the power of precision electrical engineering comes to life in every click and connection. Our electrical switches are crafted for technicians who demand unwavering reliability—whether you’re energizing an industrial control panel or upgrading a smart home hub, you’ll feel the difference the moment you flip the lever. Tight tolerances, corrosion-resistant contacts, and responsive feedback ensure that every circuit engages exactly when it should, protecting critical equipment and keeping projects on schedule.
Behind each switch is a team obsessed with quality. We rigorously test for temperature extremes, vibration, and thousands of on-off cycles, so your installations stand up to real-world conditions without missing a beat. Add streamlined stocking, rapid delivery, and a knowledgeable support crew, and you’ve got an Erwin-based partner ready to fit right into your workflow—the easiest way to put precision power at your fingertips.
FAQs
What types of electrical switches does Power of Precision Electrical offer in Erwin?
We stock and install a full range of residential, commercial, and light-industrial switches, including single-pole, three-way, four-way, double-pole, dimmer, motion-sensor, and smart Wi-Fi/Z-Wave models. All switches are UL-listed, rated for 120–277 V applications, and available in multiple styles and colors to match existing décor or commercial spec requirements.
Are your switches compatible with smart-home systems like Amazon Alexa or Google Home?
Yes. Our smart switches use either Wi-Fi, Z-Wave, or Zigbee protocols and integrate with popular ecosystems such as Amazon Alexa, Google Home, Samsung SmartThings, and Apple HomeKit. After installation we provide a step-by-step phone-pairing guide and can program the switches during the same service visit so you can control lighting scenes, schedules, and energy monitoring from your mobile device or voice assistant.
How do I determine the correct amperage and voltage rating for my switch?
First, check the circuit breaker or fuse that protects the circuit—its rating (often 15 A or 20 A on 120 V residential lines) should match or exceed the switch’s rating. Next, confirm the load type (incandescent, LED, motor, etc.) because inductive loads like motors require higher in-rush ratings. If you are unsure, our technicians will calculate the load current, continuous duty factor (80 % rule under NEC 210.20(A)), and recommend a switch that safely exceeds that value to avoid overheating or premature failure.
Can Power of Precision Electrical replace or add switches in older or historic Erwin homes without damaging plaster walls?
Absolutely. We use minimally invasive fishing techniques, surface-raceway solutions, and low-profile old-work boxes that allow us to upgrade wiring and switches while preserving original wall finishes. Before work begins, we perform an infrared scan to locate existing wiring paths, then patch and color-match any small access holes so your historic interior remains intact and code-compliant.
What safety standards do your switches meet, and how are they tested?
Every switch we sell is UL or ETL listed and meets the latest National Electrical Code (NEC 2023) requirements for dielectric strength, grounding continuity, and arc-fault resistance. In our shop we spot-test random batches for insulation resistance (>100 MΩ at 500 VDC), and after onsite installation we verify proper torque, polarity, and ground integrity with a certified digital loop tester before closing the job ticket.
Do energy-efficient dimmer and occupancy switches really lower electricity bills?
Yes. Dimmers can cut wattage up to 50 % on compatible LED or CFL fixtures, and occupancy/vacancy sensors typically reduce lighting run-time by 20–60 % in low-traffic areas like offices, hallways, or restrooms. For a typical Erwin household spending $40/month on lighting, upgrading strategic rooms often saves $6–$10 monthly. Our technicians can perform a free usage audit and show projected payback periods—most customers see ROI in 12–18 months.