Solid State Relays & SCR Power Modules
BSSR-40DA Single Phase Solid State Relay
BSSR-40DA is a single-phase DC-to-AC solid state relay rated at 40A, with 3–32VDC control input and 24–480VAC load output. It is used with PID temperature controllers on industrial heating, packaging, extrusion and automation equipment, offering fast zero-cross switching, silent operation and long service life. A matched heat sink is required at 40A continuous load.
- Single phase DC to AC solid state relay
- Rated load current: 40A
- Control voltage: 3–32VDC
- Load voltage: 24–480VAC
- Fast switching response, ≤10ms
- Silent switching, no moving contacts
- LED status indicator
- Compact screw-mount housing
- Suitable for resistive and inductive loads
- Heat sink required for continuous 40A operation
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Model | BSSR-40DA |
|---|---|
| Product Type | DC-controlled AC Solid State Relay |
| Phase | Single Phase |
| Control Type | DC to AC |
| Rated Load Current | 40A |
| Load Voltage | 24–480VAC |
| Control Voltage | 3–32VDC |
| Control Current | DC 3–25mA |
| On-state Voltage Drop | ≤1.5V |
| Off-state Leakage Current | ≤2mA |
| On-off Time | ≤10ms |
| Dielectric Strength | 2500VAC |
| Insulation Resistance | 1000MΩ |
| Ambient Temperature | −30°C to +75°C |
| Mounting Method | Screw mounting |
| Work Indicator | LED |
| Weight | 80g |
BSSR Selection Guide
Dimensions & Wiring Diagram
Popular models
BSSR-40DA is the 40A model of the BSSR-DA single phase series; all models share the same 3–32VDC control input and 24–480VAC load voltage.
| Model | Load Current | Control Voltage | Load Voltage |
|---|---|---|---|
| BSSR-10DA | 10A | 3–32VDC | 24–480VAC |
| BSSR-25DA | 25A | 3–32VDC | 24–480VAC |
| BSSR-40DA | 40A | 3–32VDC | 24–480VAC |
| BSSR-50DA | 50A | 3–32VDC | 24–480VAC |
| BSSR-60DA | 60A | 3–32VDC | 24–480VAC |
| BSSR-75DA | 75A | 3–32VDC | 24–480VAC |
| BSSR-80DA | 80A | 3–32VDC | 24–480VAC |
| BSSR-100DA | 100A | 3–32VDC | 24–480VAC |
| BSSR-120DA | 120A | 3–32VDC | 24–480VAC |
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