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AC Triac Dimmable driver 200-240Vac 300W 12V No Load Requirement 25A

triac dimmable

SKU SC-300-12

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Overview

SC-300-12 is the 12V output model of this series: rated current 25A, rated power 300W, typical efficiency 90.09%@230VAC.

Features

Output: Constant Voltage
Range: 200-240VAC
PFC design: Built-in active PFC function
Efficiency: Up to 91%
Protections: Short circuit/ over load/ over temperature
Heat dissipation: Cooling by free air convection
Waterproof performance: IP66
Dimming function: Phase dimming: work with leading edge, MLV and trailing edge, ELV, TRIAC dimmers.
Dimming range: 0-100%
Warranty: 5 years warranty

Specifications

SC-300-12Specifications from the official datasheetDownload datasheet PDF

Certificate

Certificate: TUV/ SAA / CB / CE / ENEC/ RoHS / Reach

Output

DC Voltage: 12V
Voltage Tolerance: ±0.5V
Voltage Regulation Tolerance: ±0.5%
Rated Current: 25A
Rated Power: 300W
Load Regulation: ≤2%

Input

Voltage Range: 200-240VAC
Frequency Range: 50Hz
THD(Typ.)@ Full Load: ≤15% @230VAC
Efficiency(Typ.)@ Full Load: 90.09%@230VAC
AC Current (Max.): 1.7A
Inrush Current(Typ.): 122A, 47us@50%Ipeak (230VAC); 110A, 52us@50%Ipeak (230VAC)
Leakage Current: <0.5mA

Protection

Short Circuit: Hiccup mode, re-power on to recover after fault condition removed
Over Load: ≤120% Hiccup mode, recovers automatically after fault condition is removed
Over Temperature: Shell surface temp. 100°C±10°C shut down o/p voltage, automatically recover after the temperature drops.

Environment

Working TEMP.: -40~+60°C(see below derating curve)
Working Humidity: 20 - 95% RH non-condensing
Storage TEM.,Humidity: -40 - +80°C, 10 - 95% RH non-condensing
TEMP.coefficient: ±0.03%/°C (0 - 50°C)
Vibration: 10~500Hz, 5G 12min/1 cycle, period for 72min. each along X,Y,Z axes

Safety&EMC

Safety standards: EN/IEC-61347, EN/IEC-60598 Approved, AS/NZS-61347/60598 Approved
Withstand voltage: I/P-O/P: 3.75KVAC(EU); I/P-FG: 1.5KVAC(EU); I/P-FG: 0.5KVAC(EU)
Isolation resistance: I/P-O/P:100MΩ/ 500VDC / 25°C / 70%RH
EMC Emission: Compliance to EN/IEC-55015, EN/IEC-61000, AS CISPR 15:2017

Others

Net Weight: 1.65kg
Dimension: 276*78*47mm(L*W*H)
Packing: 390*325*185mm 10pcs/CTN

Test conditions and notes2

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.
2. Tolerance: includes set up tolerance and load regulation.

Technical drawings

SC-300-12 Efficiency Curve (Efficiency vs Output load) — Efficiency Curve (Efficiency vs Output load)

SC-300-12 Derating Curve (Output load vs TEMP.) — Derating Curve (Output load vs TEMP.)

SC-300-12 Power Factor Curve — Power Factor Curve

SC-300-12 Mechanical Specification — Mechanical Specification

SC-300-12 24V & 48V Version — 24V & 48V Version

SC-300-12 TRIAC/Phase cut dimming — TRIAC/Phase cut dimming

SC-300-12 TRIAC/Phase cut dimming (2) — TRIAC/Phase cut dimming (2)

Typical applications

Suitable for the application of LED lighting

Downloads

Datasheet1

SC-300-12 datasheetEnvo_SC_300W.pdf PDF Download

FAQ

What type of power supply is the Envo SC-300-12?

The Envo SC-300-12 is a constant-voltage LED power supply rated at 300W with a 12V DC output. It delivers up to 25A and is designed for applications that need a high-capacity 12V source with TRIAC dimming support.

Is the Envo SC-300-12 suitable for TRIAC dimming systems?

Yes. This model is designed to work with both leading-edge and trailing-edge TRIAC dimmers. Its product description also notes strong compatibility and flicker-free dimming, which makes it a fit for phase-cut dimming environments.

What kinds of applications is the SC-300-12 intended for?

This model is described as suitable for LED lighting and moving sign applications. Its 12V constant-voltage output and 300W capacity make it relevant where a higher-power dimmable 12V supply is needed for those use cases.

Can the Envo SC-300-12 be used outdoors or in demanding environments?

Yes. The housing is aluminum and the unit is rated IP66, which supports outdoor installation and protection against harsh environmental exposure. It is also specified to operate from -40°C to 60°C, giving it a wide working temperature range.

What are the input and efficiency specifications of the SC-300-12?

The listed AC input range is 200-240V AC. This model also includes active PFC and is rated for efficiency of up to 91%, which is useful for higher-power lighting applications where energy performance matters.

What protection features does the Envo SC-300-12 include?

The product description lists protection against short circuit, overloading, and over temperature. These built-in protections are important on a 300W power supply because they help support reliability in continuous-use LED installations.

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