134H2469 by Danfoss

The 134H2469 is a variable frequency drive manufactured by Danfoss within the VLT 2800 Low Voltage Drives series. It is intended for process-control panels where induction motor speed must track changing demand in pumps, fans, mixers, and similar equipment. By adjusting output frequency and voltage, the drive helps match flow, pressure, or agitation to the operating conditions of the machine. This supports smoother process changes and reduces the need to run the motor at full speed when the load is lighter. The unit is suited to automated lines that need steady motor control rather than fixed-speed operation.

The drive accepts a supply of 380 to 480 V ±10% at 50/60 Hz and is connected to a three-phase network for balanced input power. Its continuous output is rated at 11.0 kW, which corresponds to 15 HP for medium industrial motor loads. An enclosure rating of IP20 protects against accidental contact with live parts when the unit is installed inside a cabinet with controlled airflow. The built-in SLCP display provides local access to operating parameters, while the RFI filter option depends on cable length and may use Class A1 or Class B performance. The Process classification keeps the standard control behavior oriented toward flow-regulated applications, and no application option is installed.

A book-style housing keeps panel width low, and the electronics are finished with coating to help resist moisture and airborne chemical vapors. The unit is supplied in a standard version with brake, so the integrated brake chopper can dissipate regenerated energy during rapid deceleration and reduce the risk of DC-bus overvoltage. Communication with higher-level control systems is available through Profibus DP at 12 MBaud, allowing status words and setpoints to move over a widely used industrial network. This arrangement is useful where the panel must handle deceleration energy and controller communication in the same drive.