12V/24V UL Class 2 TRIAC Dimmable LED Driver 60W

The NT Series 60W TRIAC Dimmable LED Driver is KSPOWER’s durable, compact constant voltage LED dimming power supply — designed specifically for the North American residential and commercial market where 120V AC / 60Hz is the standard, and TRIAC dimming via standard wall dimmer switches is the most common dimming method.

The defining advantage of this driver is its built-in junction box with 2 knock-outs — eliminating the need for a separate junction box in the installation. This super-compact aluminum enclosure houses all the electronics, the junction box wiring compartment, and the dimming circuitry in a single, elegant unit that installs in minutes with professional results.

The NT Series is available in two independent single-voltage models: 12V DC (5.0A / 60W) and 24V DC (2.5A / 60W). Both models carry full UL/cUL 8750 Class 2 certification, NEMA 3R outdoor rating, and are certified for both indoor and outdoor use. Choose 12V for standard Class 2 LED strips and modules; choose 24V for Class 2 compliance and reduced voltage drop over longer cable runs.

Two Voltage Options

Both models share the same compact aluminum housing (6.97 x 2.76 x 1.38 inches), built-in junction box, TRIAC dimming capability, NEMA 3R rating, certifications and 3-year warranty. Choose based on your LED load voltage requirement and whether Class 2 compliance is needed.

TRIAC / Phase-Cut Dimming

The NT Series uses TRIAC (Triode for Alternating Current) phase-cut dimming — the dominant dimming method in North American residential and commercial buildings. It works by cutting a portion of each AC sine wave cycle to reduce the voltage delivered to the LED driver, which in turn reduces the LED brightness.

Compatible with most standard Lutron, Leviton, and other leading brand wall dimmer switches. For best results, use a quality dimmer rated for LED loads — avoid older dimmers designed only for incandescent bulbs. The NT Series auto-reset protection ensures the driver recovers gracefully from dimmer-induced transients.

Built-in Junction Box

The built-in junction box is the NT Series’ most practical installation feature — it consolidates the driver electronics, dimming control circuitry, and the electrical junction box into one super-compact aluminum unit (only 6.97 x 2.76 x 1.38 inches).

• 2 knock-outs on the junction box: pre-punched cable entry points for clean, code-compliant wiring without drilling or cutting
• No separate junction box needed: eliminates an entire installation step and one additional product to purchase
• Class 2 rated wiring compartment: output wiring complies with NEC Article 725 (24V model) — no licensed electrician required for low-voltage wiring
• IP65 / NEMA 3R rated case: sealed junction box withstands dust and rain — suitable for indoor and outdoor use
• Ground wire connection: dedicated green ground wire terminal per NEC requirements — properly grounded installation
• Input/output wire separation: input (120V AC) and output (12V/24V DC) compartments separated for safety and clean wire routing

Class 2 LED Driver Drawing

Dimension Drawing

Installation Guide

The NT Series must be installed in accordance with NEC Article 450 by a qualified professional electrician:

• Disconnect power at the breaker before installation — never work on live circuits
• Ground the driver case: connect the green ground wire to the building ground per NEC requirements
• Use CL2 or better cabling for all low-voltage (output) wiring run inside walls
• Do not run Class 2 low-voltage wiring in the same conduit as AC main power — maintain separation; cross at 90 degrees only
• Connect LED fixture positive (+) to the red wire and negative (-) to the blue wire — observe polarity
• Total LED load wattage must not exceed 60W — do not overload the driver
• Ensure adequate ventilation around the driver for heat dissipation
• The 24V model output wiring does not require a licensed electrician (Class 2 circuit per NEC 725); the 12V model follows standard low-voltage wiring codes

Application Scenarios