Product Description:

The EFC3600-1K50-3P4-PDA-7P-NNNN frequency converter is manufactured by Bosch Rexroth Indramat as part of the EFC Frequency Converters series. It is an AC drive that modulates the voltage and frequency supplied to three-phase motors so speed and torque can be matched to process requirements in conveyor lines, pumps, and other industrial equipment. The unit integrates with cabinet-mounted control systems and is intended for general-purpose automation where compact cabinet hardware is acceptable. Its control functions support variable-speed operation in applications that need stable motor response without a large panel footprint, and it can be used with standard command wiring from a central controller.

The drive delivers a rated mechanical output of 1.5 kW and an apparent power of 2.4 kVA at its terminals. On a 380 V supply it can provide 3.7 A, and on a 480 V supply it can provide 2.9 A; both values remain within the continuous limit associated with the rated input demand of 3.9 A. Output frequency is adjustable from zero to 400 Hz, while the IGBT carrier frequency is selectable up to 15 kHz. Control connections include three 24 VDC digital inputs that draw 8 mA each, one analog voltage input with 40 kΩ impedance, and one current input with 499 Ω impedance. The analog output can source up to 5 mA for external monitoring devices.

Transient demands are supported by an overload capacity of 200% of the nominal current for one second and 150% for sixty seconds, which helps the converter start high-inertia loads without nuisance trips. Thermal management uses forced-air cooling, and the integrated fan moves air through channeled heat-sink fins to control internal temperatures even at higher carrier settings. The enclosure is rated IP20, so the unit must be installed inside a closed electrical panel. This arrangement helps prevent accidental contact with live parts while allowing heat to move into the surrounding cabinet airflow.