Nale Electric is willing to work together with domestic and foreign merchants to create brilliance!
| Quantity: | |
Product Overview
When industrial machinery requires frequent reversing, dynamic braking, or reduced-voltage starting, standard relays will melt under the brutal electrical arcing. The CHNAILE Heavy-Duty 3-Pole 32A Magnetic AC Contactor is purpose-built to master these high-stress environments. Calibrated for relentless AC-3 motor loads up to 15kW at 400V, this magnetic powerhouse seamlessly translates low-voltage PLC commands into massive mechanical force. Its highly modular design—equipped with lateral mounting points for additional auxiliary contact blocks—empowers panel builders to construct highly complex, fail-safe interlocking logic circuits required by heavy manufacturing infrastructure.
Technical Parameters
Device Category: | AC Magnetic Contactor / Heavy Motor Starter |
|---|---|
Main Poles Configuration: | 3P (Three Heavy-Duty Normally Open Contacts) |
Rated Operational Current (Ie): | 32A (AC-3 Category for heavy squirrel-cage motors) |
Max Motor Power Capacity: | ~15kW (20HP) at AC 400V |
Contact Material: | Silver-Cadmium Oxide (AgCdO) for extreme anti-welding |
Auxiliary Architecture: | Expandable (Supports side/top-mounted NO/NC blocks) |
Mechanical Life: | > 12 Million high-impact operations |
Electrical Life: | > 1.2 Million operations under full 32A load |
Installation: | 35mm Standard DIN-Rail or Heavy Screw Mount |
Standard Compliance: | IEC/EN 60947-4-1 |
1. Elite Heavy-Motor Control Mechanisms
Star-Delta & Reversing Mastery: Directly starting a 15kW motor causes severe voltage drops across a factory. This 32A contactor is designed to be banked together with side-mounted auxiliary contacts. This allows engineers to easily wire "Star-Delta (Wye-Delta)" reduced-voltage starters or "Reversing" contactor pairs with absolute electrical interlocking, ensuring short-circuits never occur during directional changes.
AgCdO Anti-Welding Contacts: Breaking a 32A inductive load generates fierce plasma arcs. The main contact pads are forged from premium Silver-Cadmium Oxide. This specific metallurgical blend inherently resists electrical erosion and strictly prevents the contacts from micro-welding together during violent motor stalls or emergency stops.
High-Impact Electromagnetic Core: The heavy-duty internal copper coil generates a profound magnetic pull, slamming the 32A contacts shut with immense kinetic force. This eliminates "contact bounce" and minimizes the localized heating that destroys lesser relays.
2. Ruggedized Industrial Architecture
V0-Rated Kinetic Dampening Shell: Housed in a structurally rigid, flame-retardant thermosetting polymer block. The chassis is specifically engineered to absorb the relentless acoustic and mechanical shockwaves generated by the magnetic coil engaging thousands of times per day.
Deep-Set Arc Extinguishing Chambers: Every time the 15kW motor is switched off, the resulting inductive arc is violently drawn into deep metallic splitter grids. Here, the plasma is fragmented, cooled, and neutralized in milliseconds, preserving the lifespan of the primary silver contacts.
Modular Logic Expandability: The grooved sides of the contactor are not just for aesthetics; they are precision-molded rails designed to securely host snap-on auxiliary contact blocks, enabling infinite PLC signaling and safety loop configurations.
3. Target Application Scenarios
Due to its robust 32A (15kW) rating and highly modular interlocking capabilities, this magnetic contactor is the primary specification for:
Industrial Extruders & Injection Molding: Managing the heavy, continuous 3-phase power required by hydraulic pumps and multi-zone heating barrels in plastic manufacturing.
Overhead Cranes & Hoist Winches: Serving as the ruggedized, interlocking reversing contactors that safely control the UP/DOWN and LEFT/RIGHT movements of heavy shipyard cranes.
Large Agricultural Irrigation: Acting as the main remote-controlled starter for massive deep-well centrifugal water pumps.
Centralized Dust Extraction & Blowers: Providing the high-amperage switching muscle for industrial factory ventilation systems.
4. Global B2B Partnership with CHNAILE Factory
Direct Supply for Machinery OEMs: Bypass international component distributors. Sourcing your 32A motor starters directly from our manufacturing lines drastically lowers the BOM for your heavy machinery production.
Exhaustive IEC Contact Endurance Testing: At 15kW, a stuck contact is a massive fire hazard. Every batch undergoes grueling, multi-day automated switching cycles in our labs to guarantee the coil logic and AgCdO contacts meet the stringent IEC 60947-4-1 lifecycle mandates.
Bespoke Solutions for Panel Builders: We actively support global machine builders, providing customized coil voltages (e.g., 24VDC, 110VAC, 380VAC), pre-assembled reversing kits, and tailored OEM faceplate printing.
