B3.S4.D2E-4016 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB B3.S4.D2E-4016 is part of the S4 Combivert Servo Controllers series. This controller features self-cooling, controller protection of IP20, and motor protection rated at IP65. It runs at a rated speed of 4000 rpm, operates at 190 V in the 200 V voltage class, and can work at altitudes up to 2000 meters.
Internal Product Review
The B3.S4.D2E-4016 is a KEB S4 Combivert servo controller with self-cooling and IP20 controller protection. The 200 V class design and 190 V rated voltage support efficient integration in servo drive applications. Climatic category 3K3 and 95% maximum relative humidity make this controller a strong choice for controlled industrial environments.
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Product Description:
The B3.S4.D2E-4016 servo controller is produced by KEB within the S4 Combivert Servo Controllers series. As a closed-loop drive, it supplies regulated current and voltage to synchronous or asynchronous motors so axes follow commanded position, speed, or torque profiles in automated machinery. It sits inside a control cabinet and forms the interface between the PLC motion task and the motor windings, converting the low-level command stream into dynamic motion while monitoring temperature, feedback, and fault states.
The controller housing carries an IP20 rating, indicating that live parts are finger-safe but the unit must be mounted in an enclosure for dust or moisture exposure. Heat is removed through a self-cooling design that relies on natural convection, so no additional fans are required and cabinet airflow calculations stay simple. The power section is designed for a nominal link voltage of 190 V, and it belongs to the wider 200 V Class, allowing connection to common 1-phase or 3-phase supplies with matching isolation transformers. When paired with KEB servo motors, the drive can modulate output frequency so the shaft reaches a rated speed of 4000 rpm, providing moderate linear velocity or spindle surface speed for packaging, pick-and-place, and general-purpose handling stations.
The controller is built for climatic category 3K3, meaning the electronics tolerate typical industrial temperatures and contaminants. Installation altitude is specified up to 2000 m; above this, thinner air reduces cooling capacity. Humidity tolerance reaches 95 % non-condensing, which is useful in humid facilities. The drive can be paired with motors whose stators carry IP65 protection and whose shaft seals reach IP64, helping resist dust ingress and directed water while maintaining bearing lubrication.
