Exceptional Performance
Exceptional Performance | Electrical Switches | Electrical | Duff
Discover how HEP elevates everyday control with its line of exceptional-performance electrical switches, engineered for precision, durability, and effortless style. Each switch is built with premium conductive materials, low-tolerance internal mechanisms, and a robust housing that shrugs off heat, vibration, and continuous use—perfect for demanding commercial installations yet refined enough for modern residential spaces. Quick-connect terminals, intuitive rocker or toggle designs, and whisper-quiet actuation ensure that every interaction feels both seamless and reassuring.
Paired with Duff’s streamlined ordering experience and dedicated technical support, HEP’s switches arrive ready to install, complete with compliance certifications and detailed spec sheets that simplify project documentation. Whether you’re upgrading a single room or outfitting an entire facility, these electrical switches deliver the performance edge professionals trust, backed by a brand that stands firmly behind every click.
FAQs
What makes Duff’s exceptional-performance electrical switches different from standard switches?
Duff switches are engineered with low-resistance silver-alloy contacts, reinforced polycarbonate housings, and an internal arc-suppression system. This combination delivers up to 1 million on/off cycles, minimizes heat build-up, and exceeds IEC/EN 60669 and UL 20 performance requirements. The result is smoother actuation, longer life, and higher safety margins than conventional switches.
Can Duff switches be installed in existing wall boxes without rewiring?
Yes. All Duff single-pole, double-pole, 3-way, and 4-way models are dimensionally compatible with standard 75 mm (UK) and 2-x-4 in. (US) electrical boxes. The rear terminals accept 1.0–2.5 mm² (14–18 AWG) solid or stranded conductors, so you can reuse existing wiring. Simply isolate power, remove the old switch, and connect the live, load, and ground wires to the clearly labeled push-in or screw terminals.
Are Duff switches safe for high-load or inductive applications such as motor control?
Absolutely. Duff’s heavy-duty SK-series is rated up to 20 A @ 277 VAC resistive and 15 A @ 250 VAC inductive. The built-in arc-chute and quick-break mechanism reduce contact erosion caused by inrush currents from motors, transformers, and LED drivers. For loads exceeding these values, Duff offers contactor-controlled kits that allow the switch to operate a remote relay, providing virtually unlimited load capacity.
Do Duff electrical switches comply with local energy codes and smart-building standards?
All mainstream Duff models carry CE, UKCA, ETL, and RoHS markings. Selected smart variants support KNX, DALI, and Zigbee 3.0 protocols, enabling integration with BMS platforms such as BACnet or LONWORKS. This makes them suitable for meeting Part L (UK), Title 24 (California), and other regional efficiency codes that require controllable lighting or occupancy-based switching.
How do I maintain or clean Duff switches without voiding the warranty?
Switch surfaces can be wiped with a soft cloth dampened in a 70 % isopropyl-alcohol solution or mild detergent. Avoid abrasive pads or solvents like acetone, which can damage the UV-stable coating. No internal lubrication is needed for the lifetime of the product, and opening the housing will void the 10-year limited warranty. If a switch becomes stiff or noisy, contact Duff support for a free replacement evaluation.
What warranty and technical support are offered with Duff exceptional-performance switches?
Every Duff switch comes with a 10-year limited warranty covering material and manufacturing defects under normal use. Technical support is available 24 / 7 via phone, chat, or email, and includes wiring assistance, compatibility checks, and replacement processing. For commercial projects, Duff provides on-site commissioning and a 48-hour advanced replacement service to minimize downtime.