F Contactor

Meet the power demands of large-scale industrial systems with the CDADA LC1-F Series F Contactor—a high-current AC contactor engineered by the professional supplier Shanghai DADA Electric CO., LTD. to IEC/EN 60947-4-1 standards. Designed for heavy-duty motor control and power switching, the LC1-F series supports rated operational currents from 115A to 1000A and controls 3-phase squirrel-cage motors up to 500kW (at 380–415V, AC-3 duty) or 670kW at 690V.

Available in 3-pole or 4-pole configurations, it’s ideal for compressors, large pumps, crushers, HVAC chillers, mining equipment, and water treatment plants. With AC-3 and AC-4 utilization ratings, it handles both standard motor starting and demanding applications like plugging or inching. Certified with CE, rated for 690V insulation, and operable in ambient temperatures from –5°C to +40°C, the CDADA F Contactor delivers robust, maintenance-friendly performance even in harsh environments up to 2000m altitude.

Key Specifications

Series: F Contactor

Brand: CDADA | Manufacturer: Shanghai DADA Electric CO.,LTD

Standard: IEC/EN 60947-4-1

Certification: CE

Poles: 3P or 4P (field-selectable on most models)

Rated Operational Current (AC-3): 115A – 1000A

Motor Power Control (AC-3):

380/415V: 55kW – 500kW

660/690V: 80kW – 670kW

Utilization Categories: AC-3 (motor running), AC-4 (plugging/inching)

Rated Insulation Voltage: 690V AC

Ambient Temperature: –5°C to +40°C

Altitude: ≤ 2000m

Mounting: Vertical ±5°, Mounting Category III

Coil Voltages (AC): 110V, 127V, 220V, 240V, 380V, 415V, 440V, 480V, 500V, 600V

Max Conventional Heating Current (AC-1): Up to 1200A

Technical data sheet

Accessories

Why Choose CDADA F Contactor?

★ True Heavy-Duty Performance

Handles up to 1000A and 500kW+ motors—perfect for mining, oil & gas, steel mills, and municipal infrastructure.

★ Global Voltage Compatibility

Wide range of AC coil options (including 415V, 480V, 600V) ensures seamless integration in European, North American, Middle Eastern, and African projects.

★ AC-4 Rated for Demanding Cycles

Unlike basic contactors, LC1-F withstands frequent reversing, braking, and jogging—critical for cranes, elevators, and extruders.

★ 4-Pole Flexibility

Switch neutral when required—ideal for TT systems, generator sets, or sensitive industrial loads.

★ Robust Thermal & Arc Management

Optimized arc chambers and high-conductivity contacts ensure long electrical life and low heat generation under continuous load.

★ OEM & Panel Builder Ready

Compatible with standard DIN rail or screw mounting, and pairs perfectly with CDADA thermal overload relays for full motor starter solutions.

★ We invest continuously in R&D, monitor global standards and market trends, and collaborate with industry experts to upgrade our product portfolio.

Typical Applications

Large Motor Control: Crushers, ball mills, centrifugal pumps

Energy & Utilities: Water/wastewater plants, power station auxiliaries

HVAC: Industrial chillers, cooling towers

Material Handling: Conveyor belts, bucket elevators

Marine & Offshore: Shipboard motor systems

Renewables: Pumped hydro, biomass feed systems

Frequently Asked Questions (FAQ)

Q1: What’s the difference between D and F series contactors?

A1:

● D Series (e.g., LC1-D): For light to medium duty (up to 95A / 45kW).

● F Series (LC1-F): For heavy industrial duty (115A–1000A / 55kW–500kW+). → F series has larger contact gaps, reinforced arc chutes, and higher short-time withstand.

Q2: Can I use a 4P F contactor to switch neutral?

A2: Yes. The 4-pole version allows simultaneous disconnection of all 3 phases + neutral—required in some safety or isolation applications (e.g., generator changeover).

Q3: Is an overload relay still needed?

A3: Absolutely. The contactor only switches power—it does not protect against overloads or phase loss. Always pair with a thermal or electronic overload relay for motor protection.

Q4: What does “AC-4 rated” mean in practice?

A4: It means the contactor can safely handle motor plugging (reverse braking) and inching (short bursts)—common in hoists, presses, and mixers. This causes high current surges; AC-4 rating ensures contact durability.

Q5: Why choose CDADA F Contactor over global brands?

A5: CDADA offers:

● Genuine IEC 60947-4-1 compliance with test documentation

● Competitive pricing without compromising on silver-alloy contacts or arc suppression

● Full coil voltage range for global exports

● Fast sample & bulk delivery from China

● OEM support: custom labeling, packaging, and technical files (CE declaration, wiring diagrams)