the Drb Series Din Rail Power Supplies Operate At 24-48v, Depending On Model-ideal For Basic Low-power Applications. With Industry-leading Efficiency Of Up To 91%, The Drb Series Supports The Growing Trend For Simple, Economic Din Power Solutions For Industrial, Building Automation And Process Control Applications. Housed In A Robust Plastic Case, These Power Supplies Feature A Narrow Design, Saving Space On The Din Rail. They Operate From A Universal Input Of 85 To 264v Ac And Have En61000-3-2 Compliance, Enabling Worldwide Use. They Can Withstand A Voltage Of 300v Ac Surge For 5 Seconds.