Solid State Relays & SCR Power Modules
SSR-DA Series Single Phase Solid State Relay (SSR)
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.
- Silent switching – no contact bounce, ideal for sensitive environments
- Fast response and long electrical life
- Compact design for easy panel integration
- Fully opto-isolated input/output for safe signal control
- Rated current options from 10A to 100A
- Zero-cross switching for stable control of resistive loads
- Suitable for industrial automation, temperature controllers and AC load switching
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Series | SSR-DA Series |
|---|---|
| Brand | Beijing Strong Electric |
| Type | Single-Phase Solid State Relay (DC to AC control) |
| Input Control Voltage | 3–32VDC |
| Load Voltage | 24–480VAC (single-phase) |
| Rated Current Options | 10A / 25A / 40A / 50A / 60A / 75A / 80A / 100A |
| Switching Type | Zero-cross switching |
| Response Time | ≤10ms |
| Isolation Method | Optical Isolation |
| 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. |
| Mounting | Panel mount with screw terminals |
| Applications | Heater control, ovens, lighting, packaging machines, temperature control systems |
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All Solid State Relays & SCR Power Modules
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BSSR-DA Single-Phase SSR — Integrated Cover, 10A–120A
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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.
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BSSR3 Three-Phase SSR — Standard, 40A–120A
The BSSR3 Three Phase Solid State Relay is designed for three-phase AC load control. It uses DC input control and AC output switching, suitable for industrial heating, temperature control, motor control, lighting systems, automation equipment, and power control cabinets. This series includes common current options such as 40A, 60A, 80A, and 100A, with output load voltage typically suitable for 48–480VAC three-phase systems.
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