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Shenzhen Rocfly Blue Electronic Co., Ltd.

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount
China Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount

  1. China Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount
  2. China Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount

Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount

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Mechanical Life 10,000,000 Operations Min
Application Industrial Automation, PLC Interface, Motor Control, Signal Isolation, Power Distribution
Payment Terms T/T,L/C,PayPal
Contact Configuration 3PDT (3 Pole Double Throw)
Supply Ability 200000 Pieces per Month
Mounting Type PCB, Socket, Flange Mount
Electrical Life 100,000 Operations at Rated Load
Options Indicator Light, Freewheeling Diode, Surge Suppression
Customization Service Coil Voltage, Contact Material, Pin Layout, Terminal Type, Label Printing, Performance Optimization, Cost Reduction Engineering
Features Ultra Small Size, Light Weight, High Sensitivity, Long Service Life
Packaging Details Anti-static tray, individual carton, export-grade corrugated master carton, custom labeling available
Contact Rating 10A at 250VAC / 28VDC
Delivery Time 5-7 working days for samples, 15-25 days for mass production
Coil Voltage 5V, 12V, 24V, 48V, 110V, 220V DC/AC (Custom)
Operating Temperature -40°C to +70°C
Model LL3C-L (ROC Series)
Certification ISO 9001:2015, CE, RoHS, UL Recognized
Brand Name Rocfly
Place of Origin Guangdong, China
Model Number LL3C-L-10A

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Product Specification

Mechanical Life 10,000,000 Operations Min Application Industrial Automation, PLC Interface, Motor Control, Signal Isolation, Power Distribution
Payment Terms T/T,L/C,PayPal Contact Configuration 3PDT (3 Pole Double Throw)
Supply Ability 200000 Pieces per Month Mounting Type PCB, Socket, Flange Mount
Electrical Life 100,000 Operations at Rated Load Options Indicator Light, Freewheeling Diode, Surge Suppression
Customization Service Coil Voltage, Contact Material, Pin Layout, Terminal Type, Label Printing, Performance Optimization, Cost Reduction Engineering Features Ultra Small Size, Light Weight, High Sensitivity, Long Service Life
Packaging Details Anti-static tray, individual carton, export-grade corrugated master carton, custom labeling available Contact Rating 10A at 250VAC / 28VDC
Delivery Time 5-7 working days for samples, 15-25 days for mass production Coil Voltage 5V, 12V, 24V, 48V, 110V, 220V DC/AC (Custom)
Operating Temperature -40°C to +70°C Model LL3C-L (ROC Series)
Certification ISO 9001:2015, CE, RoHS, UL Recognized Brand Name Rocfly
Place of Origin Guangdong, China Model Number LL3C-L-10A
High Light Custom Intermediate Relay Design Service10A 3PDT PCB Socket Relay SolutionIndustrial Automation Control Relay OEM

Custom Intermediate Relay Solution — LL3C-L Series

We do more than supply relays. We engineer relay solutions around your application requirements — custom coil voltage, tailored contact configuration, optimized mounting interface, and integrated protection features. From component selection to system-level optimization, our engineering team partners with you to improve both performance and cost efficiency.

LL3C-L Base Specifications

ParameterSpecification
ModelLL3C-L (ROC Series)
Contact Configuration3PDT — 3 sets of changeover contacts
Contact Rating10A at 250VAC / 28VDC
Coil Voltage Options5V, 12V, 24V, 48V, 110V, 220V DC/AC — Custom voltages available
Mounting TypePCB layout, DIN socket, flange mount — user-selectable
Key FeaturesUltra-small footprint, lightweight, high sensitivity, long mechanical life
Optional Add-onsLED indicator, freewheeling diode, surge suppression
Mechanical / Electrical Life10M / 100K operations (rated load)

Beyond Standard Relay Supply

  • Custom Relay Design — We tailor coil voltage, contact material (AgCdO, AgSnO2, AgNi), terminal type, pin layout, and packaging to your exact specification. Not a single parameter is off-limits. Custom silk-screen labeling and OEM branding supported.
  • Solution-Level Engineering — Our applications team works with your R&D to integrate the relay into your product — PCB footprint optimization, coil drive circuit review, surge protection strategy, and thermal derating analysis. We deliver a validated relay subsystem, not just a component.
  • Performance Optimization — Contact material upgrade for higher inrush current, sealed construction for harsh environments, gold-flash contacts for low-level signal switching. We identify the right configuration to extend relay life and improve reliability in your specific use case.
  • Cost Optimization — Alternative pin-compatible designs, domestic coil substitution, value-engineered contact material, and volume-based connector/terminal consolidation. Our procurement and engineering teams collaborate to reduce BOM cost without compromising performance.

Typical Applications

ApplicationRelay Function
PLC / Industrial ControllerInterface between low-power control signals and high-power output devices
Motor Control PanelStart/stop logic, forward/reverse interlocking, overload protection signal
Signal IsolationGalvanic isolation between control and power circuits, noise suppression
Power DistributionMulti-circuit switching, load shedding, redundant power path selection
HVAC / Building AutomationCompressor, fan, and heater control with auxiliary status feedback

Whether you need a drop-in replacement with a custom coil voltage or a complete relay subsystem validated for your industrial product — we deliver engineering, not just components. Contact us with your relay requirements for a technical proposal within 48 hours.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2010

  • Ecer Certification:

    Verified Supplier

Your China Product Development & Manufacturing Partner We help global companies turn ideas into market-ready products by combining engineering expertise, manufacturing capabilities, and China's complete industrial supply chain ecosystem. With over 15 years of experience in international trade, e... Your China Product Development & Manufacturing Partner We help global companies turn ideas into market-ready products by combining engineering expertise, manufacturing capabilities, and China's complete industrial supply chain ecosystem. With over 15 years of experience in international trade, e...

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  • Shenzhen Rocfly Blue Electronic Co., Ltd.
  • 6F,Cuigang Industrial zone,Huaide community, Fuyong Town, BaoAn,ShenZhen, GuangDong,China. 518103
  • https://www.newenergyodm.com/

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