DIN Rail Switching Power Supply 24V 5A 120W Peak 180W Automation CCTV Power Supply DC OK Relay Stable Efficient

Model: MEAN WELL SDR-120-24

EAN: 6931240018477 SKU: 931018475

• High efficiency up to 88%
• Peak power capability 150% (180W) for 3 seconds
• Built-in DC OK relay contact for status monitoring
• Adjustable output voltage range 24V - 28V DC
• Free air convection cooling (fanless)
• Mountable on DIN rail TS-35/7.5 or 15
• Wide AC and DC input voltage range
• Protections: SCP, OLP, OVP, OTP
• Wide operating temperature range from -25°C to +70°C
• Safety standards compliant and CE certified

Description

The Mean Well SDR-120-24 switching power supply is a technically advanced solution designed for mounting on a standard DIN rail (TS35/7.5 or 15). It is an industrial-grade device characterized by exceptional resistance to harsh environmental conditions, enabling stable operation in a wide temperature range up to 70°C. Thanks to its compact, narrow housing, the power supply allows for significant space savings in control cabinets and distribution boards, which is crucial in modern automation installations.

The main advantage of the model is its high energy efficiency of up to 88%, which translates into lower energy losses as heat and longer component lifespan. A unique feature of the device is its ability to generate a peak power of 180W for up to 3 seconds, allowing for the smooth startup of high-inrush current devices such as motors or solenoids. Additionally, the power supply is equipped with an integrated relay signaling the DC output status (DC OK), which enables remote monitoring of power supply health in surveillance systems.

The device offers a full suite of protections, including short-circuit, overload, overvoltage, and thermal protection, ensuring the safety of both the power supply itself and the connected loads. The robust construction and 3-year manufacturer warranty confirm the highest quality of workmanship, making this model an ideal choice for CCTV monitoring systems, alarm systems, and industrial control systems where reliability is a priority.

Specification

Standard and Type

Professional industrial switching power supply for DIN rail mounting

AC Input Voltage

88 V ... 264 V AC - wide-range AC input

DC Input Voltage

124 V ... 370 V DC - DC input capability

Output Voltage

24 V DC (switched stabilized)

Voltage Adjustment

Manual adjustment via potentiometer in the range of 24 V ... 28 V DC

Current Capacity

Rated current 5 A

Rated Power

120 W continuous output power

Peak Power

180 W - maximum peak power available for 3 seconds

Energy Efficiency

88% - minimization of thermal losses

Status Signaling

Built-in DC OK relay output (potential-free contact)

Electronic Protections

Short-circuit (SCP), overload (OLP), overvoltage (OVP), and thermal (OTP) protection

Environmental Conditions

Operating temperature: -25 °C ... 70 °C; Relative humidity: 20 % ... 95 % (non-condensing)

Housing Type and Mounting

Industrial metal DIN housing; Mounting on TS-35/7.5 or TS-35/15 rail

Warranty and Certificates

3-year manufacturer warranty; CE compliant, test reports available

Software and Logical Interface

The device features a built-in diagnostic interface in the form of a DC OK relay. The relay contact allows for integration with smart building systems, PLC controllers, or alarm systems. When the output voltage exceeds 90% of the rated value, the contact closes, allowing for automatic notification of supervisory systems regarding the correct power supply status. This solution eliminates the need for external voltage monitoring modules, increasing the reliability of the entire automation system.

Contents

1x SDR-120-24 Switching Power Supply

Dimensions, Weight

Product dimensions: 124 x 41 x 125 mm (D x W x H)

Package dimensions: 150 x 140 x 60 mm (D x W x H)

Product weight: 620 g

Weight with packaging: 684 g

Zum Download

• CE Declaration
• SAFETY COMPLIANCE