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This page explains how Contactor is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
An electrically controlled switch used for switching a power circuit, typically used in motor control applications.
Technical details and manufacturing context for Contactor
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Operational Voltage | 690 V AC | Maximum voltage for AC-3 dutyIEC 60947-4-1 |
| Rated Operational Current | 9–630 A | AC-3 utilization categoryIEC 60947-4-1 |
| Coil Voltage | 24–380 V AC/DC | AC and DC versions availableIEC 60947-5-1 |
| Coil Power Consumption | 2–10 VA | Holding power; inrush higherIEC 60947-5-1 |
| Mechanical Endurance | 10–20 million operations | Depends on size and maintenanceIEC 60947-4-1 |
| Electrical Endurance | 0.5–2 million operations | AC-3 duty at rated currentIEC 60947-4-1 |
| Operating Temperature Range | -40–85 °C | Storage and operationIEC 60947-1 |
| Degree of Protection | IP20–IP65 | Enclosure dependentIEC 60529 |
| Contact Material | AgSnO2 | Silver tin oxide for high switching frequency |
| Weight | 0.2–5 kg | Varies with frame size |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric to 2000 m altitude (standard), not pressure-rated for fluid systems |
| other spec: | Rated current: 9A to 1500A, voltage: up to 1000V AC, switching frequency: ≤3600 operations/hour, insulation voltage: 600V to 1000V |
| temperature: | -25°C to +70°C (operating), -40°C to +85°C (storage) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
Manufacturer profiles associated with Contactor.
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A contactor is an electrically controlled switch that opens or closes a power circuit. In motor control, it is used to connect or disconnect the motor from the power supply, enabling remote or automated control. It is activated by a control circuit and can handle high current loads.
Typical materials include copper for the contacts, steel for the core and frame, and plastic for housing and insulation. The contact material may be silver tin oxide (AgSnO2) for high switching frequency applications.
Relevant standards include IEC 60947-4-1 for contactors and motor-starters, IEC 60947-5-1 for control circuit devices, IEC 60947-1 for general rules, and IEC 60529 for degrees of protection. These standards are listed as references for procurement and verification; they do not guarantee compliance of any specific product.
You must check the rated operational voltage and current, coil voltage, coil power consumption, mechanical and electrical endurance, operating temperature range, degree of protection, and other parameters against your application requirements. Always confirm these values with the legal manufacturer or supplier for the specific model you intend to use.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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