Package Include: 1pcs x 15W 5V 3A Industrial DIN rail power supply MDR-20-5 specifications: output power (W): 15 ripple & noise (mV p-p): ＜150 mV load regulation: ± 1 % line regulation: ± 1 % efficiency: ＞77% size (L x W x H): 0.9 x 3.94 x 3.54 inches Overvoltage Protection: When the output voltage is more than 135%, the output will be turned off. It will recover automatically after the abnormal. detailed specifications: primary output voltage (VDC): 5 output current (a): 3 maximum output power (W): 15 family: MDR-20 input voltage: 85 to 264 VAC input frequency: 47Hz to 63Hz maximum input current (a): 0.55 output connector Type: screw terminal operating temperature-min (CEL): -20℃ operating temperature-max (CEL): 70℃ agency approvals: 3C&CE&ISO9000 color: Blue+White style: DIN rail. Brand Name: NVVV Connection instruction 〨: Ground wire L: Live wire