Features: A: excellent constant function. Afraid of a short circuit, constant current value can be set when the constant maximum voltage can be set; two: high reliability, good stability, small ripple, etc.; three: small size, light weight, high efficiency, good looks, advanced technology; IV: Optional external DC current source control interface: DC 0-10V signal or RS232 C V: Current rating (A): 150mA 1A 2A 3A 5A 10A, 15A, 20A, 30A, 50A, 100A, 150A, 200A, 300A, 500A, 800A, 1000A, 1200A, 1500A, 1800A, 2000A, 2500A, 3000A, 4500A, 5000A (according to user needs) six: Optional with communication mode (RS232/485) interface to control and analog 0-10V/5V analog control seven: Allow long short-circuit current of air switch product applications ◆ ◆ ◆ DC contactor mechanical switches, electronic switches ◆ ◆ DC transformer thermal relays, molded case circuit breakers, and the need to set up a small crowbar rated current, operating current, short circuit protection current and other automated inspection check station ◆ ◆ current requirements heating sensor test sites ◆ ◆ ◆ meter accuracy test resistance heating, and other new components