Description
Product Description
The INDRAMAT KDF 1.2-50-300-W1/220 is a variable frequency drive from the Bosch Rexroth Indramat KDF series. It is designed for industrial motion-control applications requiring regulated motor speed and integration with compatible Indramat drive and power supply systems. The KDF family uses digital velocity regulation and supports four-quadrant operation in suitable system configurations.
This model is specified with a 50 A rated current, a 300 V DC bus, and a 220 V AC fan/control supply. The W1 configuration identifies a version with a power transformer for the specified auxiliary supply arrangement. Before replacement, check the complete nameplate code, connected motor, compatible power supply, control interface, cooling requirements, and existing drive parameters.

KDF 1.2-50-300-W1/220
Product Parameters
| Parameter | Specification |
|---|---|
| Brand | INDRAMAT / Bosch Rexroth |
| Model | KDF 1.2-50-300-W1/220 |
| Series | KDF Variable Frequency Drives |
| Product Name | Variable Frequency Drive |
| Place of Manufacture | Not confirmed |
| Product Status | Legacy industrial drive; verify stock condition |
| Dimensions | Confirm from the unit drawing |
| Weight | Not confirmed for this exact configuration |
| Country of Origin | Verify from the nameplate |
| DC Bus Voltage | 300 V DC |
| Rated Current | 50 A |
| Fan/Control Supply | 220 V AC |
| Drive Version | Version 2 |
| Control Function | Digital velocity regulation |
| Command Interface | 16-bit parallel digital command interface, subject to system configuration |
| Speed Range | System-dependent; KDF family documentation specifies up to 8,000 rpm |
| Cooling | Forced-air/blower cooling |
| Discontinued | Legacy model; current production status not confirmed |
| Installation | Requires compatible Indramat power supply, motor, cabling, and control configuration |
Recommended Models
- INDRAMAT KDF 1.2-050-300-W0-220 — Related KDF drive variant; verify differences in auxiliary supply configuration.
- INDRAMAT KDF 1.2-050-500-W0-220 — Related KDF drive with a different voltage designation.
- INDRAMAT KDF 1.2-050-500-W1-220 — Related 50 A KDF drive variant.
- INDRAMAT KDF 1.2-100-300-W0-220 — Higher-current KDF drive variant.
- INDRAMAT KDF 1.2-100-300-W1-220 — Related 100 A KDF drive variant.
- INDRAMAT KDF 1.2-100-500-W0-220 — KDF variant with a different voltage designation.
- INDRAMAT KDF 1.2-100-500-W1-220 — Related KDF drive for compatible systems.
- INDRAMAT KDF 1.2-150-300-W1-220 — Higher-current KDF drive variant.
- INDRAMAT KDF 1.2-150-500-W1-220 — Related high-current KDF drive variant.
- INDRAMAT KDF 1.1-050-300-W1-220 — Earlier KDF version; verify control and hardware compatibility.
- INDRAMAT KDF 1.1-100-300-W1-220 — Related KDF drive variant.
- INDRAMAT KDF 2.1-050-300-W1/220 — Different KDF generation; not an automatic substitute.
- INDRAMAT KDF 2.2-050-300-W1/220 — Related KDF generation and current class.
- INDRAMAT TDM 1.2-050-300-W1-220 — Related Indramat servo controller family; function differs from KDF.
- INDRAMAT KVR Power Supply Modules — Related power-system components for compatible Indramat drive configurations.
Compatibility note: Similar KDF model numbers may have different current ratings, DC bus specifications, revisions, or auxiliary supply arrangements. Confirm the full type code and system documentation before selecting a replacement.
