BTA20.4-ND-BM-VB-BS
BTA20 Machine Control Boards
The Bosch Rexroth Indramat BTA20.4-ND-BM-VB-BS is a high-performance rotary cam switch in the BTA20 Machine Control Boards series, engineered for safe power distribution and control in industrial automation. Key specifications include a 690V AC voltage rating, 4-pole switching capability, and an IP65 (Front) ingress protection rating that shields internal components from dust and water jets. Featuring a panel depth of 66mm and a durable Black Knob actuator, this switch provides reliable manual operation for isolating and routing electrical circuits within control panels.
Constructed with a compact 45x45mm front plate and DIN rail mounting, the BTA20.4-ND-BM-VB-BS supports a 20A current at 50/60 Hz, suitable for medium-voltage control applications. The robust screw terminal design ensures secure and vibration-resistant connections under continuous load. Its integrated 4-pole configuration allows simultaneous switching of multiple phases and neutral conductors. Additionally, the switch offers advanced safety features with configurable emergency stop circuits – two dedicated E-STOP and three enabling circuits – selectable between left or right slots to meet specific machine safety requirements and improve process flexibility.
Rated for operation from -25°C to +55°C and capable of over 1,000,000 operations of mechanical endurance, this cam switch is designed for demanding environmental conditions. Certified to the IEC/EN 60947-3 standard, it ensures international compliance and quality assurance. Communication via INTERBUS-S / BT-BUS interfaces allows straightforward integration into automated control systems, enhancing real-time diagnostics and system interoperability. By combining rugged construction, high ingress protection, configurable safety circuits, and standardized communication, the BTA20.4-ND-BM-VB-BS delivers reliable performance, reduced downtime, and improved efficiency in industrial applications requiring precise and durable power switching solutions.
Technical Specifications
Actuator Type
Black Knob
Configurable Emergency Stop Circuits
Two E‑STOP and three enabling circuits, selectable left/right slot
Current Rating
20A
Frequency
50/60 Hz
Front Plate Size
45x45mm
Ingress Protection
IP65 (Front)
Mechanical Endurance
1,000,000 operations
Mounting Type
DIN Rail
Operating Temperature
-25°C to +55°C
Panel Depth
66mm
Poles
4
Standard Compliance
IEC/EN 60947-3
Switch Type
Rotary Cam Switch
Terminal Type
Screw Terminal
Voltage Rating
690V AC
Product
BTA
Design
4
Configuration
ND-BM-VB
Communication Bus
INTERBUS-S / BT-BUS
Common Misspellings
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the BTA20.4-ND-BM-VB-BS. Exchange
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