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September 08, 2026 3 min read
Specification sheet for the Zane AC2 Two-Wire, Low-Voltage AC Dimmer for incandescent lighting and AC-rated LED modules.
Specification sheet for the Zane AC2 Two-Wire, Low-Voltage AC Dimmer — a low-voltage (12/24VAC) dimmer for incandescent lighting and AC-rated LED modules, installed on the low-voltage side of a magnetic step-down transformer.
The Zane Two-Wire, Low-Voltage AC Dimmer blends safe-to-the-touch 12 or 24 VAC power with the illumination quality of low-voltage incandescent lighting, and is optimized for AC-rated LED modules as well. It installs on the low-voltage side of a magnetic step-down transformer for easy system design and individual fixture control, using the same two-wire hookup as a standard toggle switch — no grounding wire, bypass wire, or component matching required. An existing toggle switch can be directly replaced with zero wiring changes.
A triac-based "pi" trigger circuit with a low-firing-point diac delivers flicker-free, wide-band dimming performance from a warm glow through high-intensity incandescent or LED brightness, while minimizing waste heat. A heavy RF noise filter (about 10x the suppression of an ordinary filter) attenuates interference with nearby radios and electronics. Rotary adjustment provides tactile on/off with soft start/end to extend bulb life, and an included potentiometer lets you fine-tune minimum brightness on the fly to compensate for line voltage variation or create special lighting effects.
| Parameter | Value |
|---|---|
| Mode of Operation | Triac-based with pi-configured trigger circuit, low-firing-point diac, heavy RF filter |
| Supply Voltage | 12 VAC or 24 VAC nominal; each lighting circuit should be individually fused at rated current (10A or 20A) |
| Load Types | Resistive loads (incandescent, heating elements) and AC-rated LED modules; not suitable for motors |
| Maximum Load | Normal operation 70–80% of rated current; usable up to the point the 10A/20A user-installed fuse opens |
| Minimum Load | 1A (12/24W), or slight flickering may result |
| Dimming Range | About 10% min (factory setting) to about 90% max; can be manually set to about 5% min |
| Ambient Temperature Range | −40°F (−40°C) to 115°F (46°C), with restrictions noted |
| AC-AC Conversion Efficiency | About 85% at full rated load |
| Line/Load Regulation | Line regulation directly proportional to AC line voltage; load regulation generally less than 3% from min to max load |
| Service Life of On/Off Switch | About 50,000 cycles |
| Size / Weight | About 1.8" (45mm) × 1.3" (33mm) × 1.7" (43mm) excluding knob; ~6 oz (168g) for 10A version, ~8 oz (225g) for 20A version |
| Heat Dissipation | Temperature rise of plate at rated current is about 40°F (22°C) above ambient; the metallic wall plate serves as an external heat dissipater and should stay out of direct sunlight and away from thermal insulation |
| Transient Protection | Pi trigger circuit acts as a spike filter for additional protection against transient voltages |
| Installation | Installs directly into a standard 1-gang outlet box with provided plate screws |
| Accessories Included | Color-coordinated mounting screws, tagged leads, detailed installation instructions |
| Part # | UPC | Input Voltage | Max Current / Watts |
|---|---|---|---|
| AC2-10AL-12V | 27300 | 12V | 10A / 125W |
| AC2-10AL-24V | 27400 | 24V | 10A / 250W |
| AC2-20AL-12V | 27700 | 12V | 20A / 250W |
| AC2-20AL-24V | 27800 | 24V | 20A / 500W |
ZANE International, Inc., 2436 Precision Drive #B, Minden, Nevada 89423. Protected under US Patent 7,180,250. Made in USA.
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