ABB EHBD220 Magnetic Contactor

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• • • • • • • • • • • • • • • Product Information & Specifications

                              • Model: EHDB220 (for example EHDB220C‑1L)

                              • Series: EHDB Drive Contactor series

                              • Type: 3‑pole (3‑P) AC/DC drive contactor designed for variable speed DC drive systems.

                              • Rated Current: Typically up to 220 A for EHDB220 size.

                              • Poles / Contacts: 3 poles, standard configuration 2 N.O. + 1 N.C.

                              • Coil Voltage / Frequency: Versions available with e.g., 120 V AC coil; other voltages such as 110 V, 208 V, 240 V may be specified.

                              • DC Capability: Rated for up to 600 V DC making capacity and 300 V DC breaking capacity.

                              • Auxiliary Contacts: Standard 1 N.O. + 1 N.C.; up to additional auxiliary contacts can be added to achieve up to 4 N.O. + 4 N.C.

                              • Construction Highlights: Double‑break main contacts plus magnetic arc chamber; high‑temperature encapsulated coil; removable arc chute for maintenance.

                              • Operating Environment: Typical operating temperature from ‑25 °C to +50 °C; storage up to +70 °C.

                              Advantages & Features

                              • Designed for drive systems: Specifically intended for use in variable speed DC drive applications, meeting the demands of such systems.

                              • High power / heavy duty capability: Suitable for large current loads, heavy industrial equipment.

                              • High make/break DC performance: 600 V DC making / 300 V DC breaking capacity allows use in challenging environments.

                              • Expandable auxiliary contact configuration: Gives flexibility for monitoring or additional control logic.

                              • Robust long‑life design: Enhanced arc extinguishing and double‑break contact design improve durability and operational life.

                              • Brand reliability: As part of ABB’s industrial range, users can expect high reliability and support infrastructure.

                              Application Areas

                              • Variable speed drives and DC drive systems: Used to control and switch the load in DC/AC drives, especially with dynamic braking.

                              • Industrial automation and heavy‑duty motor control: For large motors, heavy equipment, drive systems where control contactors must handle large currents.

                              • Maintenance and retrofit of older drive systems: Suitable as replacement contactor in legacy drive installations.

                              • Brake systems / drive integration: In systems where dynamic braking, DC bus switching or drive components are used.

                              Precautions

                               

                              • When purchasing, ensure full model code, coil voltage and version are verified (e.g., EHDB220C‑1L, EHDB220C2P‑1L) to guarantee compatibility.

                              • Ensure power to the system is shut off before installing or replacing, and ensure ESD protection is used.

                              • For high‑power applications, ensure wiring terminal size, conductor cross‑section and power system capability meet the specification.

                              • In drive systems, verify integration with brake circuits, DC bus, master controller and other components.

                              • Install in an environment with appropriate temperature, humidity, vibration and dust control for reliable long‑term service.

                              • Although the product is industrial grade, if used in outdated or soon‑to‑be‐deprecated systems, consider planning for future replacement to avoid spare parts scarcity.