High Current Solid State Relay LSR-3-1-3400DA SSR 3-Phase 400A 440VAC 50-60Hz Panel Mount Explosion Proof Custom R&D Design
Product Summary
High current 3-phase solid state relay, 400A 440VAC 50/60Hz, compact panel mount design. Semi-permanent lifespan, corrosion resistant, vibration proof, explosion-proof. Ultra-low power consumption. Our R&D team customizes current rating (up to 600A), control input type, switching mode, and enclosure for industrial heaters, motor soft starters, and power distribution systems. We optimize cost without compromising reliability.
Product Custom Attributes
3-Phase SSR 400A 440VAC
,High Current Solid State
,Explosion Proof Custom R&D
Basic Properties
Trading Properties
Product Description
High Current 3-Phase SSR 400A 440VAC — R&D Engineered, Cost Optimized
400A Continuous · Explosion Proof · Semi-Permanent Life · We Design Your Power System
🏭 400A Continuous — Engineered to Your System, Not Just Off the Shelf
This is a 400A continuous-rated 3-phase SSR for the most demanding industrial power control applications. But we do not just sell you a standard part — our R&D team partners with your engineers to design the complete switching solution. From current rating (up to 600A) to control interface, thermal management, and explosion-proof enclosure — we customize every aspect and optimize the design to lower your total system cost without cutting corners on reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Load Rating | 400A 440VAC 50/60Hz (Up to 600A Custom) |
| Phase | 3-Phase Single Pole |
| Control | 3-32VDC / 4-20mA / 0-10V |
| Isolation | 4000VAC Input to Output |
| Life | Semi-Permanent (Solid State) |
| Protection | Corrosion · Vibration · Explosion Proof |
⚡ 400A-600A Range
We engineer SSRs from 200A to 600A for any industrial heating, motor control, or power distribution application.
💰 BOM Cost Optimization
Our R&D team reviews your system design to right-size the SSR — eliminating over-spec costs while ensuring margins.
🔥 Thermal Engineering
Custom heat sink, forced-air, and liquid cooling options for continuous 400A operation in demanding environments.
🛡️ Ruggedized Design
Explosion-proof, corrosion-resistant, vibration-proof — certified for oil & gas, chemical, and heavy industry.
Let Our R&D Team Engineer Your High-Current SSR Solution
Tell us your current, voltage, and control requirements. We design a complete, cost-optimized power switching solution — not just a component.
📧 Contact R&D → MOQ: 10pcs | Custom Design: 2-3 Weeks
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Contact Our Experts And Get A Free Consultation!
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