BTA20.3-NA-SP-VB-BS

The Bosch Rexroth Indramat BTA20.3-NA-SP-VB-BS from the BTA20 Machine Control Boards series delivers a versatile control solution featuring a Configuration NA-SP-VB, Design 3, Line 20, and Product BTA designation for seamless integration into sophisticated machine tools. It supports the INTERBUS-S / BT-BUS communication bus and is configurable via up to eight standard switching elements on freely assignable modules. The unit weighs approximately 2.1 kg and incorporates a type VB Feed Module with two gray code override switches for precise feed and spindle operations. Compact dimensions and a printed circuit design consolidate all active electronics on a single board for optimized reliability.

Engineering robustness is assured across a wide operational envelope: ambient temperatures from 5 °C to 45 °C, air pressures between 860 to 1060 hPa, and installation heights up to 1500 m. Maximum heat dissipation is limited to 10 Watts to facilitate efficient thermal management in enclosed control cabinets. The housing varnish is finished in light gray RAL 7035 per DIN40 050 and IEC 529 standards, ensuring mechanical durability and long-term resistance to industrial environments.

Certified for safety and ingress protection, the enclosure features an IP20 rating to prevent contact with live parts and intrusion of objects larger than 12 mm. The front panel, constructed of varnished aluminum with chemical-resistant polyester foil, meets IP65 standards for dust tightness and protection against water jets. This combination of features makes the BTA20.3-NA-SP-VB-BS a high-performance, reliable choice for lathes, milling machines, machining centers, and other precision equipment requiring advanced operator interfaces.