Precision Engineering
Precision Engineering | Electrical Switches | Electrical | Mountain City
Nestled in the heart of Mountain City, HEP marries precision engineering with real-world know-how to create electrical switches you can trust. From compact toggle designs for tight control panels to rugged, weather-sealed units ready for Appalachian extremes, every switch is machined, assembled, and tested in-house to micron-level tolerances. The result is a crisp actuation feel, ultra-low contact resistance, and a lifespan measured in hundreds of thousands of cycles—perfect for OEMs, field technicians, and hobbyists who refuse to compromise.
What truly sets HEP apart is our local support. Need a custom throw pattern, unique mounting footprint, or overnight turnaround? Our Mountain City engineers and machinists are just a phone call—or a quick drive—away. Stop by the shop, swap ideas over a cup of coffee, and leave with a solution that snaps into place and keeps your project powered for years to come.
FAQs
What types of precision-engineered electrical switches do you offer in Mountain City?
We design and manufacture a full portfolio that includes toggle, rocker, rotary, push-button, slide, DIP, micro-limit, and sealed momentary switches. Each product line is available in multiple configurations for AC or DC circuits, low-level signal switching, and power applications up to 30 A. We also build specialty versions such as illuminated, latching, and snap-action models to address niche industrial, aerospace, and medical equipment needs common to Mountain City customers.
How do your switches meet industry standards and safety certifications?
Every switch is produced in an ISO 9001:2015-certified facility and is tested to UL, CSA, and CE requirements for dielectric strength, insulation resistance, and endurance cycles. RoHS and REACH compliance is standard, and many models are additionally qualified to MIL-PRF-8805 and EN 61058 where mission-critical reliability is required. Certificates of Conformance and complete test reports are provided with each shipment to simplify your regulatory documentation.
Can you customize electrical switches to match my exact electrical and mechanical specifications?
Yes. Our in-house engineering team can tailor contact ratings (from 10 mA signal level up to 30 A power loads), operating voltages (3 V to 600 V), actuator styles, termination types (PCB pins, solder lugs, screw, or quick-connect), travel force, and even tactile feedback. 3-D CAD models and rapid prototypes are delivered within a week for verification, and low-volume custom runs start at just 100 pieces, making it practical for both R&D and full production in Mountain City.
What materials and manufacturing processes ensure long-term reliability of your switches?
Critical current-carrying parts use beryllium-copper or phosphor-bronze contacts plated with 30 µin of gold or 100 µin of silver to resist corrosion and contact wear. Housings are molded from UL 94V-0 flame-retardant glass-filled nylon or PBT, and shafts/actuators are machined on 5-axis CNC centers from stainless steel or anodized aluminum. For harsh environments we add EPDM or silicone rubber seals to achieve IP67/IP68 ingress protection. Every switch undergoes 100 % functional testing and a 10-million-cycle mechanical endurance test on random samples.
How do I choose the right switch for Mountain City’s high-altitude and wide-temperature conditions?
First, verify the switch’s altitude derating curve—at Mountain City’s elevation (~4,900 ft/1,494 m), dielectric withstand voltage drops by roughly 8 %. Select a switch with at least 125 % margin over your maximum working voltage. Next, match the ambient temperature range; our industrial-grade products operate from −40 °C to +125 °C. If exposure to dust, oil, or moisture is expected, specify IP67 sealing and consider conformal-coated or hermetically sealed versions. Finally, confirm actuation force and contact plating compatible with your current level to minimize contact bounce and wear.
What lead times and after-sales support can I expect for switch orders?
Standard catalog items ship from our Mountain City distribution hub within 48 hours. Custom prototypes are typically ready in 7–10 days, and full-scale custom production runs average 4–6 weeks depending on tooling requirements. We provide a two-year warranty covering workmanship and materials, free failure analysis, and local field-service engineers who can visit your facility for installation guidance or root-cause investigations. Replacement parts and repair kits remain available for a minimum of 10 years after the initial production date.