A Series Contactor

Unlock superior performance and flexibility with the CDADA A Series AC/DC Contactor, a compact yet powerful solution designed by Shanghai DADA Electric CO., LTD for motor control and power switching applications. The A series is engineered to meet IEC/EN 60947-4-1 standards, offering rated operational currents from 9A to 370A and controlling 3-phase motors up to 200kW (at 400V, AC-3 duty).

With its compact design, long operational life, and wide voltage control coil options, the A series is perfect for both industrial and commercial applications, including motor starters, lighting controls, capacitor banks, and bypass circuits. Featuring built-in surge suppression, mirror contacts, and robust arc management, it ensures reliable operation even in environments with voltage fluctuations or short-term interruptions. Certified with CCC, the CDADA A Series contactor provides a dependable solution for global markets.

Key Specifications

Why Choose CDADA A Series Contactor?

★ Wide Voltage Compatibility

Supports 100-250VAC/DC control coils—ideal for global installations without needing multiple coil types.

★ Robust Against Voltage Fluctuations

Handles instantaneous voltage drops or surges (<20ms) without tripping—critical for unstable grids.

★ Built-in Surge Suppression

No need for external snubbers—integrated protection against transients extends coil life and reduces installation complexity. Safety Features

Includes mirror contacts (per IEC 60947-4-1 Annex F)—ensures safe operation in critical circuits.

★ Versatile Applications

Suitable for motors, lighting, capacitor banks, bypass circuits, and more—making it a one-stop solution for panel builders.

★ While respecting client confidentiality, we serve numerous distributors and OEM partners worldwide who supply to major projects and local markets.

Typical Applications

Motor Starters: Pumps, fans, compressors

Lighting Controls: Commercial buildings, stadiums

Capacitor Bank Switching: Power factor correction systems

Bypass Circuits: UPS systems, generator transfer switches

Industrial Automation: Conveyor lines, packaging machines

FAQs

Q1: What makes the A series different from other contactor series?

A1: The A series stands out due to its compact size, wide voltage control coil range, and built-in surge suppression. It’s optimized for global compatibility and can handle voltage fluctuations and momentary interruptions without dropping out.

Q2: Can this contactor operate under unstable voltage conditions?

A2: Yes! The A series features anti-voltage fluctuation capabilities, allowing it to withstand momentary voltage drops or surges (<20ms) without interrupting the circuit—a crucial feature in regions with unreliable power supplies.

Q3: Do I need additional components for surge protection?

A3: No. The A series comes with built-in surge suppression, eliminating the need for external snubbers and reducing installation complexity.

Q4: Are mirror contacts included as standard?

A4: Mirror contacts are available as accessories and comply with IEC 60947-4-1 Annex F—essential for safety-critical circuits where contact position verification is mandatory.

Q5: Why choose CDADA A series over competitors?

A5: CDADA offers:

● True wide-range coils (100-250VAC/DC) without needing multiple variants

● Integrated surge protection and anti-fluctuation design

● High reliability with long operational life and robust arc management

● Global certifications (CE) and competitive pricing

● OEM-friendly support: fast sample delivery, custom labeling, and technical documentation