Introduction:
- Lorentzzi® SSR-40DA is a widely used DC-to-AC solid-state relay with a rated current of 40A, suitable for most load control scenarios, especially single-phase heaters with a rated power of less than 4kW.
- It accepts a 3–32 VDC control input and supports a 24–480 VAC load voltage. When the control signal is activated, the load circuit switches on immediately.
- This SSR-40DA SSR is typically used with a PID temperature controller for precise temperature control.
- Rated for a maximum load current of 40A, it can drive heating elements up to 4kW at 220VAC(or 2kW at 110VAC). For higher power requirements, we offer upgraded models: SSR-60DA (6kW@220VAC, 3kW@110VAC), SSR-80DA (8kW@220VAC, 4kW@110VAC) and SSR-100DA (10kW@220VAC, 5kW@110VAC).
- Two switching modes are available: random turn-on and zero-cross switching. Random turn-on provides faster response, while zero-cross switching effectively suppresses electrical noise.
- Similar to AC contactors, an SSR is a low-voltage-controlled high-voltage switch as well. It delivers outstanding performance featuring fast response, silent operation and a long service life. Read our blog to compare: SSR Vs. AC Contactor: Which Is Better In A Temperature Control System?
- Priced under USD 10.0, this solid state relay delivers dependable quality. Direct factory sales eliminate middleman markup, and all our products come with a 2-year warranty.
- Want to know the latest price of our 40A DC to AC solid-state relay? Please fill out the form below to contact us now!
SSR-40DA SSR Applications:
- Electric heater temperature control,
- Heating control for HVAC equipment,
- Lighting control,
- Smart home control.
- And so on.
SSR-40DA Solid State Relay Dimension:
Specifications:
| Mode | SSR 40DA |
| Control voltage | 3-32 VDC |
| Control type | Zero cross(default) or random turn on |
| Max control current | 12 mA |
| Switch-on voltage | 2.8 VDC |
| Switch off voltage | 1.5 VDC |
| Load voltage | 24-480 VAC |
| Peak load voltage | 800 V |
| Load current | 40 A |
| Max off-state leakage current | 2 mA |
| Max on-state voltage drop | 1.5 V |
| Product dimension | 44.8*57.4*28 mm |
| Net weight | 100 g |
| Dielectric strength(input to output) | 4000 V |
| Dielectric strength(input to output to base) | 2500 V |
| Operating temperature | -30℃~80℃ |
| Certification | CE |
| Terminals | Screw |
| Remark | When using this SSR, please consider using a suitable heat sink to help cool it, otherwise high temperatures exceeding 80 degrees Celsius will cause permanent damage to this SSR. |
