Basler Electric CBS 212 Current Boost System

The Basler Electric CBS 212 Current Boost System (part number 9 2650 00 100) is a compact power electronics device designed to mitigate voltage dips during the starting of large induction motors. By injecting controlled current into the system during the starting period, it supports the motor’s inrush demand and prevents excessive voltage drop that could affect other loads. This system operates from a 120/240 VAC, 50/60 Hz supply and is suitable for industrial, commercial, and marine applications.

Operation and Control

The CBS 212 continuously monitors the line voltage and motor current. When a motor start is detected (current rise), the system activates a boost module that supplies additional reactive and active current from an internal capacitor bank or auxiliary source. The boost level and duration are programmable via front‑panel potentiometers. The system automatically deactivates once the motor reaches rated speed or after a set time (0.5‑10 seconds). A built‑in logic prevents unnecessary boost during normal operation.

Key Features

Adjustable boost current up to 120% of nominal, response time<20 ms, and thermal protection with automatic reset. The unit includes LED status indicators for power, boost active, and fault. An RS‑485 communication port (optional) allows remote monitoring. The enclosure is rated NEMA 1 and is designed for wall or floor mounting. Input power is 120/240 VAC, 50/60 Hz, with a control power transformer included.

Technical Specifications

Supply voltage: 120/240 VAC ±10%, single‑phase. Control logic power: derived from supply. Boost current: selectable up to 120% of rated load. Boost time: 0.5‑10 seconds. Response time:<20 ms. Operating temperature: –10°C to +50°C. Enclosure: steel, powder‑coated. Weight: approximately 25 kg. Compliance with UL 508 and IEC 60947.

Benefits

Reduces voltage sags from 30% to less than 10%, preventing nuisance tripping of PLCs, contactors, and lighting. Improves motor starting torque and acceleration. Allows use of smaller transformers or generators in weak networks. It operates only during starting, ensuring energy efficiency.

Applications

Ideal for compressor stations, crushers, conveyors, pumps, and fans. It is especially useful in remote locations with limited utility capacity, such as offshore platforms, mining sites, and agricultural facilities. The CBS 212 can be retrofitted into existing motor control centers with minimal modifications.

Installation and Commissioning

Mount the unit near the motor starter. Connect the supply and control wiring. Commissioning involves setting the boost current and duration, then testing with a motor start. The unit includes a test mode to simulate operation. Routine maintenance includes filter cleaning and capacitor inspection.

Reliability and Quality

Basler Electric builds the CBS 212 with high‑grade components and forced‑air cooling. It has a MTBF exceeding 50,000 hours. The system is factory tested and backed by a comprehensive warranty.

Conclusion

The Basler Electric CBS 212 Current Boost System (9 2650 00 100) is an effective, reliable solution for overcoming voltage dip issues during motor starts. Its robust design and flexible settings make it an indispensable tool for improving power quality in demanding industrial environments.