S403BA-PB
by Kollmorgen
The Kollmorgen S403BA-PB is a compact 3-pole Circuit Breaker in the S400 Servo Drives series by Kollmorgen. This thermal magnetic device is rated for a 3A rms current and supports voltages of 480/277 V AC, offering robust protection for servo drive systems. Designed for DIN rail mounting, it features a reliable toggle actuator and screw terminals to simplify installation and maintenance. The primary function of the S403BA-PB is to safeguard servo amplifiers and connected brushless synchronous motors against overloads and short circuits in industrial automation environments.
This S403BA-PB unit distinguishes itself with an interrupting capacity of 10 kA, ensuring rapid disconnection under fault conditions. The breaker’s thermal magnetic trip type delivers precise current sensing, while the three-pole configuration isolates all phases simultaneously. Its DIN Rail mounting type and compact footprint—54 mm width, 88 mm height, and 69 mm depth—enable easy integration into densely packed control cabinets. The screw terminal interface offers secure conductor connections, and the toggle actuator allows for quick manual operation. Additionally, the device can be expanded via PROFIBUS, making it adaptable to networked control architectures in modern automation systems.
Built to operate reliably over a wide temperature range from -25°C to +60°C, the S403BA-PB maintains performance in harsh industrial settings. Compatibility with PROFIBUS networks enhances system communication and monitoring capabilities, while the absence of an internal power supply simplifies upstream power management. The breaker’s axis module functionality supports seamless integration with axis controllers, ensuring coordinated protection across multi-axis applications. Durable construction and precise thermal magnetic tripping provide long-term operational efficiency and reduced downtime. By combining high interrupting capacity with flexible mounting and communication options, the S403BA-PB delivers essential circuit protection and enhances the safety and reliability of complex industrial automation installations.
