Custom Intermediate Relay Solution LL3C-L 10A 3PDT PCB Socket Flange Mount Design Support for Industrial Automation
Product Summary
Custom LL3C-L 10A 3PDT intermediate relay solution with PCB socket and flange mount design support for industrial automation. We provide relay selection, engineering optimization, and customized solutions to improve reliability, performance, and cost efficiency for control system
Product Custom Attributes
Custom Intermediate Relay Design Service
,10A 3PDT PCB Socket Relay Solution
,Industrial Automation Control Relay OEM
Basic Properties
Trading Properties
Product Description
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
| Parameter | Specification |
|---|---|
| Model | LL3C-L (ROC Series) |
| Contact Configuration | 3PDT — 3 sets of changeover contacts |
| Contact Rating | 10A at 250VAC / 28VDC |
| Coil Voltage Options | 5V, 12V, 24V, 48V, 110V, 220V DC/AC — Custom voltages available |
| Mounting Type | PCB layout, DIN socket, flange mount — user-selectable |
| Key Features | Ultra-small footprint, lightweight, high sensitivity, long mechanical life |
| Optional Add-ons | LED indicator, freewheeling diode, surge suppression |
| Mechanical / Electrical Life | 10M / 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
| Application | Relay Function |
|---|---|
| PLC / Industrial Controller | Interface between low-power control signals and high-power output devices |
| Motor Control Panel | Start/stop logic, forward/reverse interlocking, overload protection signal |
| Signal Isolation | Galvanic isolation between control and power circuits, noise suppression |
| Power Distribution | Multi-circuit switching, load shedding, redundant power path selection |
| HVAC / Building Automation | Compressor, 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.
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LGood quality relay and socket. The 10A rating works well in our control panel, and the flange mount design made installation easier.
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Our mission is to offer "High Quality" & "Good Service" & "Fast Delivery" to help our clients to gain more profits.