Solid State Relays & SCR Power Modules
SSR-DA Single Phase Solid State Relay, DC to AC Control, 10A–100A
SSR-DA Series Single Phase Solid State Relay is a DC control AC output solid state relay designed for reliable switching of AC loads. It accepts a 3–32VDC control signal and switches 24–480VAC load voltage, making it suitable for heating equipment, lighting systems, blowers, packaging machines and industrial automation control systems. The SSR-DA series is available in 10A, 25A, 40A, 50A, 60A, 75A, 80A and 100A current ratings.
- DC control AC output solid state relay
- 3–32VDC input control voltage
- 24–480VAC load voltage range
- Zero-cross trigger for stable switching
- LED status indicator
- No mechanical contacts, silent operation
- Compact screw-mounted structure
- Available from 10A to 100A
- Suitable for heating, lighting and automation systems
- Use a properly sized heat sink and thermal compound. Required cooling depends on the actual load current, ambient temperature, duty cycle, enclosure ventilation and heat-sink thermal resistance. Apply appropriate derating. Forced-air cooling may be required for high-current or continuous-duty operation.
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Product Series | SSR-DA Series |
|---|---|
| Product Type | Single Phase Solid State Relay |
| Control Type | DC Control AC Output |
| Control Voltage | 3–32VDC |
| Load Voltage | 24–480VAC |
| Rated Current | 10A / 25A / 40A / 50A / 60A / 75A / 80A / 100A |
| Trigger Type | Zero-Cross Trigger |
| Cooling | Use a properly sized heat sink and thermal compound. Required cooling depends on the actual load current, ambient temperature, duty cycle, enclosure ventilation and heat-sink thermal resistance. Apply appropriate derating. Forced-air cooling may be required for high-current or continuous-duty operation. |
| Control Current | 5–25mA |
| On-State Voltage Drop | ≤1.5VAC |
| Off-State Leakage Current | ≤2mA |
| Isolation Voltage | ≥2500VAC |
| Dielectric Strength | 2.5kV RMS |
| Mounting Method | Bolt Mount |
| Indicator | LED Status Display |
| Operating Temperature | -30°C to +75°C |
| Dimensions | 57.4mm × 44.8mm × 28mm |
| Certification | CE |
Product photos
Related guides
How to Wire TCN4S and TCN4H/L/M Temperature Controllers: Contactor and SSR Methods
Terminal-by-terminal wiring instructions for the TCN4S-14RV and TCN4H/L/M-14RV PID temperature controllers, covering AC contactor (relay output) wiring, BSSR-25DA solid-state relay wiring, K type and PT100/Cu50 sensor connections, SSR heat sink sizing and a commissioning checklist.
Read guide Technical Guides · 2025-04-15How to Wire REX-C100/C400/C700 Temperature Controllers with Relay and SSR Output
This blog provides a comprehensive guide on wiring REX series temperature controllers, including the C100, C400, and C700 models. It explains both relay and solid-state relay (SSR) output methods, sensor wiring (K-type and PT100), and alarm connections. Diagrams are provided for practical understanding and installation reference.
Read guide Technical Guides · 2025-04-11Solid State Relay (SSR) vs. Mechanical Relay: What’s the Difference and When to Use Each
This article compares SSR and mechanical relays by switching speed, lifespan, load compatibility, and usage scenarios—helping you decide which is best for your power control application.
Read guideRelated models
All Solid State Relays & SCR Power Modules
SSR-DA Single-Phase SSR — Standard Black Housing, 10A–100A
SSR-DA Series single-phase solid state relays from Beijing Strong Electric offer fast, silent zero-cross switching for AC resistive loads. Control input is 3–32VDC, load output 24–480VAC, with rated current from 10A to 100A. Typical uses are heating equipment, ovens, lighting circuits, packaging machines and temperature control systems.
View details
BSSR-3 Three-Phase SSR — Integrated Cover, 10A–120A
BSSR-3 Series Three-Phase Solid State Relay is an industrial-grade solid state switching module designed for three-phase AC load control. It supports DC-to-AC control and AC-to-AC control options, with rated current choices from 10A to 120A.
View details
BSSR-DA Single-Phase SSR — Integrated Cover, 10A–120A
BSSR-DA Series Solid State Relay is a single-phase DC-to-AC solid state relay designed for industrial heating, motor control, temperature control systems, automation equipment, and switching applications. It features DC 3-32V control input, AC 24-480V load output, fast switching, stable performance, compact design, and good heat dissipation.
View details
DIN Rail SSR with Integrated Heat Sink, 10A–120A
DIN Rail Mount Solid State Relay is a slim integrated SSR with built-in heat sink, designed for compact industrial control cabinets and DIN rail installation. It supports high-efficiency switching for AC load control, with current options from 10A to 120A. The integrated heat sink improves thermal management, while the slim structure helps save panel space.
View detailsNeed help selecting the right model?
Send us the load, voltage, sensor type and output signal. We reply with the matching model, wiring notes and an OEM quotation.