CI EI Contactor Types 9-30 - DANFOSS INDUSTRIAL AUTOMATION

CI EI Contactor Types 9-30 - DANFOSS INDUSTRIAL AUTOMATION

These contactors, ranging from 9 to 30 amperes (AC-3 utilization category), are electromechanical switching devices designed for controlling motors, resistive loads, and other inductive circuits in industrial automation. They feature a compact design with up to 3 or 4 main poles (3P/4P), coil voltages typically from 24 VAC/DC to 690 VAC, and mechanical endurance exceeding 10 million operations. The range includes both standard and reversing contactors, with integrated or add-on auxiliary contact blocks for signaling and interlocking. They are built for panel mounting (DIN rail or screw) and comply with IEC/EN 60947-4-1 standards, ensuring reliable performance in harsh environments.

These contactors are primarily used in motor control centers (MCCs), conveyor systems, pump and fan control, HVAC equipment, and general machine automation. They are also found in elevator control panels, packaging machinery, and water treatment plants. Their robust construction makes them suitable for applications requiring frequent switching, such as lighting control in industrial facilities or power factor correction banks.

The main subcategories include standard power contactors (e.g., CI 9, CI 12, CI 18, CI 25, CI 30), reversing contactors (e.g., CI 9R, CI 12R), and compact contactors for specific applications. The article code typically follows the pattern "CI" followed by the rated current (e.g., CI 9 for 9A, CI 30 for 30A), with suffixes for coil voltage (e.g., -24V, -230V) and options like "R" for reversing or "M" for mechanical interlock. Accessories like auxiliary contact blocks (e.g., CA 1, CA 2) and surge suppressors are also available.

We offer these Danfoss contactors at competitive prices with up to 65% discount off list price, backed by real-time stock availability and express worldwide shipping. Our team of specialized engineers provides personalized technical support for selection, application, and troubleshooting, including documentation like datasheets and CAD drawings. Whether you need a single unit for a retrofit or bulk quantities for a new project, we ensure fast delivery and expert guidance.