The Siemens 3RK1908-0AP00-0EP0 is a base unit designed to complement the ET 200SP motor starter range, providing a robust and efficient solution for industrial automation systems. This accessory is engineered with an AC infeed and features an integrated F-DI for fail-safe motor starters, ensuring reliable operation and safety in a variety of applications.
Constructed to accommodate a three-pole main current circuit, the unit is capable of handling an operational current of up to 32 A at 400 V AC, with derating considerations available in the manual for different conditions. The base unit is also equipped with a single digital input, supporting a 24 V DC rated input voltage, which allows for straightforward integration into existing control systems.
The supply voltage for this unit is DC, with a rated value of 24 V and operational limits set between 20.4 V and 28.8 V, ensuring compatibility with standard industrial power supplies. The unit's ampacity can handle up to a maximum of 7 A, providing sufficient capacity for most motor starter applications.
Designed for versatility, the Siemens 3RK1908-0AP00-0EP0 can be mounted in various positions including vertical, horizontal, or lying down, and is fastened using a standard rail, making installation and maintenance straightforward. With dimensions of 215 mm in height, 30 mm in width, and 75 mm in depth, the unit is compact and space-efficient, an important consideration for crowded control cabinets.
The base unit is built to withstand challenging industrial environments, with an insulation voltage rated at 500 V and surge voltage resistance of 6 kV. It is also resistant to shock and vibration, ensuring continued performance even in demanding conditions. The unit's front protection class is IP20, providing finger-safe touch protection and safeguarding against the ingress of solid objects.
Overall, the Siemens 3RK1908-0AP00-0EP0 is a reliable and essential component for modern motor control applications, offering durability, safety, and ease of use for engineers and technicians in the field.