SSR-25DA Solid State Relay – 25A DC to AC SSR Module for PID Temperature Control
SSR-25DA Solid State Relay – 25A DC to AC SSR Module for PID Temperature Control
The SSR-25DA Solid State Relay is a highly reliable DC-to-AC switching module designed for industrial automation, PID temperature control systems, and AC load management. It allows a DC input signal (3–32VDC) to control an AC output load (24–380VAC) with a maximum switching capacity of 25A. This silent, fast-switching relay features optoisolated inputs, eliminating noise and mechanical wear common in traditional relays.
⚙️ Key Features:
- ⚡ 25A Load Capacity – Handles high-voltage AC loads with stable switching
- 🔌 DC to AC Switching – Accepts 3–32VDC control input, switches 24–380VAC load
- 🔇 Silent Operation – No moving parts, no clicking noise, longer lifespan
- 🔧 Fast Response Time – Ideal for applications requiring rapid switching like PID temperature control
- 🧱 LED Indicator – Displays input signal status at a glance
- 🛠️ Panel Mount Design – Easy installation with screw terminals and solid construction
📦 Specifications:
- Model: SSR-25DA
- Input Control Voltage: 3–32VDC
- Output Load Voltage: 24–380VAC
- Rated Output Current: 25A
- Trigger Current: ≥7.5mA
- Output Type: Zero-cross AC switching
- Isolation: Optical isolation for protection
- Mounting: Panel mount with heat sink support recommended
💡 Applications:
- PID temperature controllers (heaters, ovens)
- AC motor control
- Lighting systems
- Industrial machinery automation
- Home appliance control systems
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