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DC Magnetic Contactors for Battery, EV & DC Motor Control — 9A to 85A

KRIPAL UKD1 series DC magnetic contactors (9A–85A) are purpose-built for battery systems, DC motor drives, EV charging, and industrial DC control circuits, featuring specialized DC arc extinction technology that outperforms repurposed AC hardware. These contactors support a comprehensive range of DC coil voltages from 12V to 250V and offer flexible installation via 35mm DIN rail or M4 screw fixing. Fully CE certified and engineered for durability with secure crimping terminals, our contactors are available for factory-direct export to distributors and OEM partners worldwide.

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DC Magnetic Contactors for Battery, EV & DC Motor Control — 9A to 85A
UKD1 Magnetic DC Contactor 9A-85A 110V dc Coil 3-Pole CE Certified
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UKD1 Magnetic DC Contactor 9A-85A 110V dc Coil 3-Pole CE Certified

UKC1 DC Coil Contactor is an electromagnetic switching device specifically engineered for DC circuits.

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UKD1 Magnetic DC Contactor 22A 24V dc Coil 3-Pole CE Certified
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UKD1 Magnetic DC Contactor 22A 24V dc Coil 3-Pole CE Certified

UKC1 DC Coil Contactor is an electromagnetic switching device specifically engineered for DC circuits.

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DC Magnetic Contactor Selection Guide for Direct Current Systems

Efficient DC switching requires specialized arc extinguishing mechanisms due to the absence of a natural zero-crossing point in DC waveforms. The KRIPAL UKD1 series leverages advanced magnetic blowout technology and reinforced arc chutes to deliver superior arc suppression. Designed for mission-critical applications—including battery energy storage systems (BESS), Uninterruptible Power Supplies (UPS), and industrial DC motor control—our contactors provide the robust isolation and load management reliability that modern high-voltage DC systems demand.


Technical Specifications of the UKD1 DC Magnetic Contactor Series

Magnetic Blowout Architecture

DC arc interruption system using magnetic blowout design to stabilize arc extinction during load switching, significantly improving contact life under high DC breaking conditions.

Current Rating Range: 9A to 85A

Covers low to medium DC load applications, from battery isolation circuits to DC motor drives and distribution bus systems requiring stable, high-performance switching.

DC Control Coil Specifications

Available in a wide range of DC control voltages—including 24V, 48V, 110V, 220V, and 250V—to provide flexible integration for various industrial panels, automation, and control systems.

Flexible Pole Configuration (3-Pole & 4-Pole Options)

Features both 3-pole and 4-pole structural options designed for diverse DC bus switching requirements, flexible wiring layouts, and multi-path current routing in industrial control systems.

Global Regulatory Compliance

Holds comprehensive CE certification. Meets strict European and international standards for direct current switching, facilitating seamless integration for export-oriented OEM manufacturers.

4 Systematic Steps to Specify Your DC Magnetic Contactor

  1. Calculate the DC Load Amperage: Verify that the rated operational current of the contactor safely exceeds the peak continuous load of your battery bank or DC motor, while incorporating a sufficient margin for transient power spikes.
  2. Identify the Control Coil Voltage: Select the appropriate DC coil voltage—ranging from 12V to 250V—to match your control circuitry requirements, ensuring compatibility with your specific industrial automation or infrastructure setup.
  3. Determine the Application Profile: Classify your specific operational environment, confirming that the DC magnetic contactor is suited for your intended use case, such as solid-state battery disconnection, DC traction motor regulation, or UPS power routing.
  4. Verify Regulatory Requirements: Ensure the selected switching component complies with the safety and certification protocols of the target installation site, leveraging the CE certification to facilitate global project integration.

From Battery Storage to EV Charging: DC Contactor in the Field

KRIPAL UKD1 DC magnetic contactors provide specialized direct current switching where arc suppression is critical. They are widely deployed in renewable energy storage systems, EV charging stations, and industrial DC drive cabinets across global infrastructure projects.

Utility Scale Battery Energy Storage (BESS)

UKD1 contactors are engineered for DC-side switching in containerized battery energy storage systems, essential for grid frequency regulation and peak shaving. The magnetic blowout arc extinction system ensures reliable interruption performance during continuous charge-discharge cycling, effectively minimizing the risk of contact welding in high-duty DC environments.

Public EV DC Fast Charging Infrastructure

These contactors handle DC circuit switching and isolation between rectifier modules and charging terminals for high-capacity fast chargers. The available 3-pole and 4-pole configurations allow for flexible wiring and high-performance current handling within a compact, space-saving frame.

Crane Hoist and DC Traction Motor Drives

UKD1 contactors are ideal for DC traction and drive systems, including overhead cranes, electric forklifts, and automated guided vehicles (AGVs). The magnetic blowout system ensures reliable arc interruption during the frequent reversing and plugging operations typical of high-inertia DC motor control.

Power Your DC Project with Factory Direct Supply

  • DC Application Consultation: Share your system voltage, continuous current, and duty cycle requirements with our technical team. Our engineers will recommend the optimal UKD1 contactor, providing arc chamber validation and precise coil voltage selection.
  • Certification for DC Standards: Request our CE certification and technical compliance documentation specifically tailored to DC switching applications for your target installation jurisdictions.
  • Project Volume Pricing: Contact our export team for competitive pricing on BESS and EV charging infrastructure projects, featuring coordinated multi-batch delivery schedules.
From Battery Storage to EV Charging: DC Contactor in the Field

DC Contactor Manufacturing: Specialized Lines, Global Reach

KRIPAL operates a dedicated DC contactor production cell, entirely separate from our AC lines. This ensures that every unit benefits from specialized magnetic blowout assembly stations, DC-optimized coil winding parameters, and rigorous DC load bank testing—processes that standard AC production lines simply cannot replicate.

Magnetic Blowout Assembly Expertise

The arc chamber magnets, which are critical to DC contactor performance, are assembled and verified on dedicated high-precision fixtures. Before final assembly, every unit undergoes strict checks for blowout field polarity and magnet gap—a quality control step often overlooked by AC-only manufacturers.

DC-Specific Coil Design

Unlike AC contactors where coil impedance naturally limits current, our DC coils are precision-engineered to handle continuous DC voltage without thermal degradation. KRIPAL DC coils feature optimized wire gauges and turn ratios specifically designed for sustained DC energization.

DC Load Bank Endurance Verification

Every production batch undergoes exhaustive switching tests on resistive-inductive DC load banks. These tests simulate real-world BESS and EV charger operating conditions, providing a level of reliability that surpasses the common industry shortcut of using AC load banks.

Project-Phased Delivery for Energy Infrastructure

For multi-phase BESS and charging station projects, KRIPAL provides warehousing solutions to release stock in line with your site installation schedule. This strategy mitigates on-site storage risks and optimizes your working capital by preventing the early delivery of bulk components.

Low-Volume DC Project Flexibility

While multinationals often enforce high MOQs, KRIPAL supports project-based requirements starting from 50 units. This provides essential support for specialized DC drive manufacturers and BESS prototype integrators who require agility without the burden of large minimum orders.

Comprehensive DC Documentation Package

Every export shipment includes detailed DC-specific test reports, including arc interruption waveforms, coil thermal imaging under continuous duty, and COOs formatted for specific renewable energy customs tariff codes.

Private Labeling for Energy OEMs

Support your brand identity with custom laser-marked part numbers that match your BESS or EV charger documentation. We offer flexible white-label services, keeping the KRIPAL name off the product to ensure your brand remains the primary equipment manufacturer.

Direct DC Engineering Dialogue

BESS integrators and EV OEMs benefit from direct communication with our dedicated DC engineering team. By bypassing general support queues, you receive informed, expert responses regarding DC switching parameters without escalation delays.

Frequently Asked Questions

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A DC magnetic contactor is an electromechanical device designed to switch direct current loads using an electromagnetic coil and specialized DC-rated main contacts. KRIPAL UKD1 contactors are specifically engineered for battery, DC motor, and industrial control applications, covering a range from 9A to 85A.
AC contactors rely on the natural current zero-crossing point in AC waveforms to extinguish arcs. In contrast, DC current is continuous, requiring DC contactors to utilize advanced arc chutes and magnetic blowout technology to safely suppress arcs during load switching. The KRIPAL UKD1 series is purpose-built for these specific DC requirements.
UKD1 covers low-voltage DC control up to 85A. For high-voltage EV and battery systems, KRIPAL also offers the UKD-H series up to 300A with IP67 protection.
Yes. KRIPAL is a professional manufacturer and exporter of DC contactors, supplying CE-certified UKD1 products factory-direct to global distributors and OEM partners.

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