Single Phase Solid State Relay | DC to AC SSR 3-32VDC Input 24-480VAC Output
Single Phase Solid State Relay | DC to AC SSR 3-32VDC Input 24-480VAC Output
single phase solid state relay (SSR) is contactless electronic switching component, available in DC-control-AC, AC-control-AC, DC-control-DC and solid state voltage regulator types. The LMSSR model supports 3-32VDC DC input & 24-480VAC zero-cross AC output, built-in red LED operation indicator, no mechanical arc sparks, ultra-long service life. Widely applied for oven heaters, plastic machinery, temperature controllers and industrial automation equipment. CE & ISO9001 certified, factory direct wholesale with full amp range and OEM customization service for global export orders.
single phase solid state relay (SSR) is contactless electronic switching component, available in DC-control-AC, AC-control-AC, DC-control-DC and solid state voltage regulator types. The LMSSR model supports 3-32VDC DC input & 24-480VAC zero-cross AC output, built-in red LED operation indicator, no mechanical arc sparks, ultra-long service life. Widely applied for oven heaters, plastic machinery, temperature controllers and industrial automation equipment. CE & ISO9001 certified, factory direct wholesale with full amp range and OEM customization service for global export orders.
1. Product Overview
2. Core Competitive Features
✅ Contactless Semiconductor Switching, No Arc Sparks
No mechanical metal contacts, completely avoid arc spark ablation and contact sticking failure, suitable for frequent high-speed switching working scenarios.
✅ Zero Crossing Turn-On Design (DC to AC Model)
Zero-cross trigger circuit suppresses current surge at switch-on moment, protects heating loads and extends the service life of peripheral electrical components.
✅ Four Complete Product Series for All Demands
4 functional types optional: DC-Control-AC, AC-Control-AC, DC-Control-DC, Solid State Voltage Regulator, match diverse automation circuit control needs.
✅ Wide Input Voltage Compatibility
DC input version supports universal 3~32VDC control signal, compatible with PLC, temperature controller, relay output and sensor trigger signals.
✅ Clear Red LED Working Status Indicator
Built-in red LED lamp lights up when SSR is switched ON, directly visible working state without extra measuring tools for convenient on-site maintenance.
✅ CE & ISO9001 Double International Certifications
Pass EU CE safety certification and ISO9001 factory quality certification, fully compliant for global industrial equipment export sales.
✅ Full Amp Current Specifications
Complete current range: 10A, 25A, 40A, 60A, 80A, 100A, from small light loads to high-power heating furnace equipment.
✅ Ultra Long Service Life & Low Noise
No mechanical wear, service life over 100 million switching times, silent operation without electromagnetic buzzing noise compared to traditional relays.
✅ Factory Spot Stock & OEM Customization Support
Direct factory supply without middle markup, abundant ready stock for fast shipment; accept customized printed brand logo, packaging and special circuit parameters for overseas orders.
3. Main Product Specifications
| Item | Technical Parameter |
|---|---|
| Product Model | LMSSR Series Single Phase Solid State Relay (SSR) |
| Featured Model | LMSSR-40DA (DC Control AC) |
| Control Input Range | 3~32VDC (DC input type); AC input optional |
| Load Output Range | 24~480VAC (AC output); DC output optional |
| Switching Mode | Zero Crossing Trigger (AC output models) |
| Status Indicator | Built-in Red LED Power-On Indicator |
| Product Types | DC-Control-AC / AC-Control-AC / DC-Control-DC / SSR Voltage Regulator |
| Available Current Ratings | 10A / 25A / 40A / 60A / 80A / 100A |
| Certifications | CE, ISO9001 |
| Core Advantage | Contactless, arc-free, long lifespan, silent frequent switching |
| Typical Loads | Heating tubes, industrial ovens, plastic machinery, temperature controllers |
| Service Support | Factory wholesale, OEM private label customization, export standard packaging |
4. Wide Application Scenarios
- Industrial electric oven, heating furnace and plastic extruder heating tube control
- Temperature controller, PID thermostat matching power switching
- Agricultural greenhouse heating equipment, poultry breeding temperature regulation
- Packaging machinery, automated production line actuator control
- Lighting dimming, signal isolation and PLC output expansion
- Food baking machinery, hot melt glue machine heating control
- Solar auxiliary heating system power switching
- Textile printing & dyeing equipment constant temperature control
5. Installation & Operation Guide
- Mount the single phase SSR on metal heat sink (mandatory for current ≥25A) for effective heat dissipation during long-time operation.
- Wiring the control signal positive to terminal 3, negative to terminal 4 for DC input models (SSRxxDA).
- Connect AC power supply to terminal 1, heating load to terminal 2 on the AC output side.
- Input valid DC 3-32V control signal: red LED lights up, SSR conducts and AC load powers on.
- Cut off control signal voltage: SSR cuts off AC output load power, LED indicator turns off simultaneously.
- For long-term high-power operation, add cooling fan to heat sink to avoid overheating burnout.
6. Frequently Asked Questions (FAQ)
Q1: What are the 4 types of this solid state relay?
Q2: What input voltage does the LMSSR-40DA DC to AC SSR accept?
Q3: Why choose solid state relay instead of mechanical relay?
Q4: Is this single phase SSR suitable for heating tube temperature control?
Q5: Can we customize printed brand logo on SSR for export bulk orders?
7. Factory Wholesale Advantages
- Self-owned production factory without intermediate distributors, competitive ex-factory unit price for large volume overseas export orders.
- Each solid state relay undergoes 48-hour continuous aging test and high voltage withstand inspection before delivery to guarantee stable long-term operation.
- Professional electrical technical team provides model current selection, heat sink matching and wiring guidance for heating automation engineering projects.
- Stable mass production capacity with short delivery lead time, shockproof anti-collision export carton packaging to prevent transit damage during sea transportation.
- Flexible OEM customization service including brand logo printing, special input/output parameter modification and personalized export packaging for regional market demands.
1. Product Overview
2. Core Competitive Features
✅ Contactless Semiconductor Switching, No Arc Sparks
No mechanical metal contacts, completely avoid arc spark ablation and contact sticking failure, suitable for frequent high-speed switching working scenarios.
✅ Zero Crossing Turn-On Design (DC to AC Model)
Zero-cross trigger circuit suppresses current surge at switch-on moment, protects heating loads and extends the service life of peripheral electrical components.
✅ Four Complete Product Series for All Demands
4 functional types optional: DC-Control-AC, AC-Control-AC, DC-Control-DC, Solid State Voltage Regulator, match diverse automation circuit control needs.
✅ Wide Input Voltage Compatibility
DC input version supports universal 3~32VDC control signal, compatible with PLC, temperature controller, relay output and sensor trigger signals.
✅ Clear Red LED Working Status Indicator
Built-in red LED lamp lights up when SSR is switched ON, directly visible working state without extra measuring tools for convenient on-site maintenance.
✅ CE & ISO9001 Double International Certifications
Pass EU CE safety certification and ISO9001 factory quality certification, fully compliant for global industrial equipment export sales.
✅ Full Amp Current Specifications
Complete current range: 10A, 25A, 40A, 60A, 80A, 100A, from small light loads to high-power heating furnace equipment.
✅ Ultra Long Service Life & Low Noise
No mechanical wear, service life over 100 million switching times, silent operation without electromagnetic buzzing noise compared to traditional relays.
✅ Factory Spot Stock & OEM Customization Support
Direct factory supply without middle markup, abundant ready stock for fast shipment; accept customized printed brand logo, packaging and special circuit parameters for overseas orders.
3. Main Product Specifications
| Item | Technical Parameter |
|---|---|
| Product Model | LMSSR Series Single Phase Solid State Relay (SSR) |
| Featured Model | LMSSR-40DA (DC Control AC) |
| Control Input Range | 3~32VDC (DC input type); AC input optional |
| Load Output Range | 24~480VAC (AC output); DC output optional |
| Switching Mode | Zero Crossing Trigger (AC output models) |
| Status Indicator | Built-in Red LED Power-On Indicator |
| Product Types | DC-Control-AC / AC-Control-AC / DC-Control-DC / SSR Voltage Regulator |
| Available Current Ratings | 10A / 25A / 40A / 60A / 80A / 100A |
| Certifications | CE, ISO9001 |
| Core Advantage | Contactless, arc-free, long lifespan, silent frequent switching |
| Typical Loads | Heating tubes, industrial ovens, plastic machinery, temperature controllers |
| Service Support | Factory wholesale, OEM private label customization, export standard packaging |
4. Wide Application Scenarios
- Industrial electric oven, heating furnace and plastic extruder heating tube control
- Temperature controller, PID thermostat matching power switching
- Agricultural greenhouse heating equipment, poultry breeding temperature regulation
- Packaging machinery, automated production line actuator control
- Lighting dimming, signal isolation and PLC output expansion
- Food baking machinery, hot melt glue machine heating control
- Solar auxiliary heating system power switching
- Textile printing & dyeing equipment constant temperature control
5. Installation & Operation Guide
- Mount the single phase SSR on metal heat sink (mandatory for current ≥25A) for effective heat dissipation during long-time operation.
- Wiring the control signal positive to terminal 3, negative to terminal 4 for DC input models (SSRxxDA).
- Connect AC power supply to terminal 1, heating load to terminal 2 on the AC output side.
- Input valid DC 3-32V control signal: red LED lights up, SSR conducts and AC load powers on.
- Cut off control signal voltage: SSR cuts off AC output load power, LED indicator turns off simultaneously.
- For long-term high-power operation, add cooling fan to heat sink to avoid overheating burnout.
6. Frequently Asked Questions (FAQ)
Q1: What are the 4 types of this solid state relay?
Q2: What input voltage does the LMSSR-40DA DC to AC SSR accept?
Q3: Why choose solid state relay instead of mechanical relay?
Q4: Is this single phase SSR suitable for heating tube temperature control?
Q5: Can we customize printed brand logo on SSR for export bulk orders?
7. Factory Wholesale Advantages
- Self-owned production factory without intermediate distributors, competitive ex-factory unit price for large volume overseas export orders.
- Each solid state relay undergoes 48-hour continuous aging test and high voltage withstand inspection before delivery to guarantee stable long-term operation.
- Professional electrical technical team provides model current selection, heat sink matching and wiring guidance for heating automation engineering projects.
- Stable mass production capacity with short delivery lead time, shockproof anti-collision export carton packaging to prevent transit damage during sea transportation.
- Flexible OEM customization service including brand logo printing, special input/output parameter modification and personalized export packaging for regional market demands.
Related Products
Contact Us
Have questions about our products or services? Our team is here to help you with any inquiries.