EM300S24DC 300W Triac Dimmable Outdoor 24VDC Transformer

EM300S24DC 300W Triac Dimmable Outdoor 24VDC Transformer

The EM300S24DC is a 300W outdoor magnetic 24VDC transformer / LED driver with Triac dimming capability. It uses PWM output and supports compatible ELV, MLV, CL, forward-phase, or reverse-phase dimmers, making it a flexible power option for compatible dimmable low voltage lighting systems.

Why Choose the EM300S24DC?

✔ Triac Dimmable 24VDC Output
PWM output supports compatible ELV, MLV, CL, forward-phase, and reverse-phase dimming.

✔ 300W Capacity
Provides up to 300W of single-circuit 24VDC power.

✔ Outdoor NEMA 3R Enclosure
Black powder-coated steel housing protects the encapsulated transformer.

✔ Protected Power Delivery
Manual primary and secondary breakers provide circuit protection for the transformer system.

Electrical Specifications

• Input Voltage: 120V 60Hz
• Max. Input Current: 2.6A at full load
• Output Voltage - No Load: 25.6VDC
• Output Voltage - Fully Loaded: 23.5VDC
• Max. Total Wattage: 300W
• Max. Output Current: 12.5A
• Efficiency: 90%
• Load Regulation: 0%
• Ripple: 0%
• Dimming: Triac / PWM; compatible ELV, MLV, CL, forward or reverse phase

Construction & Certification

• Enclosure: Black powder-coated steel, outdoor NEMA 3R
• Transformer Construction: Encapsulated magnetic transformer with separated primary and secondary windings
• Certification: Conforms to UL 2108; certified to CSA C22.2 No. 250.0
• Primary Breaker: 5A manually reset
• Secondary Breaker: 20A manually reset
• Dimensions: 8 × 4.15 × 3.41 in

How to Select the 300W 24VDC outdoor magnetic transformer

Choose the EM300S24DC when a project requires a 300W 24VDC outdoor magnetic transformer and the available supply matches 120V 60Hz. Confirm that every connected fixture accepts 24VDC and that the planned load fits the transformer’s circuit configuration. Its black powder-coated NEMA 3R steel enclosure is intended for outdoor transformer installations.

This is a single-circuit model, so all connected fixture wattage counts toward the listed 300W maximum. The specifications show 25.6VDC at no load and 23.5VDC at full load, giving installers a reference for expected output as the connected load changes. Final transformer location, wiring, circuit protection and code compliance should be reviewed by a qualified installer before the system is energized.

Frequently Asked Questions

What lighting systems can use the EM300S24DC?
This 300W 24VDC outdoor magnetic transformer is intended for compatible low-voltage landscape or architectural lighting that accepts 24VDC power. The connected load must stay within the listed 300W capacity and 12.5A output-current limit.

Is the EM300S24DC dimmable?
Yes. The product data lists Triac / PWM; compatible ELV, MLV, CL, forward or reverse phase. The wall control, transformer and connected fixtures must all be compatible with that dimming method.

Can this transformer be installed outdoors?
Yes. Its black powder-coated NEMA 3R steel enclosure is specified for outdoor transformer installations. Final placement and wiring must still follow the product instructions and applicable electrical requirements.

Compare voltage, capacity, circuit and enclosure options in our low-voltage landscape lighting transformer collection.

Official EMCOD Specification Sheet: Download PDF