KLAS
Rotary dimmers
Single-pole (grounded or basic) & 3-way · solid brass plate · knurled knob · hand-brushed, naturally unique on every plate
| Single-pole, grounded | Single-pole, basic | 3-way | |
| Use | Light controlled from one place | Light controlled from two or more places | |
| Operation | Press the knob for on/off, rotate to dim | Rotate to dim | Press the knob for on/off, rotate to dim |
| Ground wire | Yes | No (2 wires: line in, load out) | Yes (4 leads: black = common, red + red = travellers, green = ground) |
| Dimming type | Triac (forward phase) | ||
| Voltage | 110–130 V AC, 50/60 Hz | 110–120 V AC, 50/60 Hz | 108–132 V AC, 60 Hz |
| LED load | 3–150 W (dimmable LED) | 150 W dimmable LED · 150 W dimmable CFL | |
| Incandescent / halogen | 40–600 W | 40–250 W | 40–600 W |
| Rated life | 10,000+ cycles | ||
| Protection | Overheat protection · flame-retardant PC housing · 4 kV dielectric test | ||
| Neutral wire | Not required | Not required | Not required |
| Device size | — | 105 × 54 × 43 mm (4.1 × 2.1 × 1.7 in), 88 g · accepts 18 AWG wire | |
| Fits | Standard 1-gang US/Canada box (per gang) | ||
| Certification | UL, US & Canada · UL file E522988 | UL, US & Canada · UL file E511941 | cULus, US & Canada · UL 1472 (solid-state dimming controls) · UL file E522988 |
| Plate | 2 mm solid brass on a 2 mm acrylic frame | ||
| In the box | Plate, dimmer fitted, matching screws | ||
Which single-pole? Both dim the same lights. The grounded dimmer also switches on and off with a press of the knob, so the light comes back at the level you left it; it suits any box, including new plastic boxes. The basic dimmer only rotates; choose it for a metal box (which grounds the plate through its screws) or to replace a dimmer in an older box with no ground wire. North American codes generally require a metal plate to be grounded; ask your electrician if unsure.
Bronze · Antique Brass · Brushed Nickel
Matte Black · Satin Brass · White
Plate sizes
| Gangs | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Width (mm) | 72 | 120 | 165 | 210 | 255 | 300 |
| Width (in) | 2.83 | 4.72 | 6.50 | 8.27 | 10.04 | 11.81 |
| Height | 120 mm · 4.72 in (all sizes) | |||||
| Screw holes | 83.5 mm · 3.29 in apart (top to bottom) · standard inch screws | |||||
Wiring · single-pole
Basic dimmer: same, without the ground wire to the dimmer. Ground the light fitting as normal.
Wiring · 3-way dimmer
Pair the 3-way dimmer with a KLAS 3-way toggle at the other location. For three or more locations, add a 4-way toggle in between. Use one dimmer per light circuit.