BTA20.1

The BTA20.1 from Bosch Rexroth Indramat is a robust addition to the BTA20 Machine Control Boards family, delivering reliable AC load regulation with a Type of Thyristor Triac design. This control board is rated for Rated Power of 20 W and operates at a nominal Rated Voltage of 120 V. It supports an On-state RMS current of 20 A @ Tc = 70 °C and withstands a Maximum Off-state Voltage (Vdrm) of 600 V. Its Maximum Repetitive Peak Reverse Voltage (Vrrm) matches at 600 V, ensuring secure blocking capability when in the off state. Compact dimensions and a Mounting style of Through Hole simplify installation into industrial control cabinets.

With precise triggering characteristics, the BTA20.1 features a Gate Trigger Current (Igt) of 35 mA and a Gate Trigger Voltage (Vgt) of 1.5 V, allowing for low-energy drive circuits. The Holding Current (Ih) is specified at 50 mA, ensuring device latching under typical load conditions. Surge performance is exceptional, with a Surge On-state Current (Itsm) rated at 200 A and a Surge Peak On-state Current (ITSM) of 210 A (50 Hz) or 200 A (60 Hz). Its Insulation (rms Voltage From All Three Terminals To External Heatsink) rating of 2500 V guarantees high-voltage isolation from system heatsinks and chassis ground. The board’s Configuration and Communication Bus parameters are Factory Assigned, providing plug-and-play integration without manual parameterization.

Engineered for demanding environments, this module operates seamlessly across a wide Operating Junction Temperature Range of -40 °C to +125 °C, maintaining stable switching performance even under thermal stress. The board’s low thermal impedance and robust semiconductor design ensure minimal derating during prolonged operation. With a Design classification of 1, it excels in continuous-duty applications, providing consistent power control in AC circuits. The combination of through-hole mounting and a durable epoxy encapsulation enhances mechanical resilience and prevents contamination ingress, thereby reducing maintenance requirements.

Integration of the BTA20.1 into industrial automation systems is straightforward, thanks to its form-factor compatibility with standard PCBs and heat sinks. Its comprehensive blocking and conduction capabilities make it ideal for use in motor drives, resistive heating elements, and industrial switching assemblies. Engineers will appreciate the proven reliability of this control board when designing power management solutions for packaging machinery, welding equipment, and process control systems. With its precise triggering thresholds and high surge tolerance, the BTA20.1 ensures peak performance in critical automation tasks.