Fotek ACR-40LA Solid State Relay

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Product Name: Fotek ACR-40LA – Solid State Relay (SCR Type)

Function:
Single-phase solid state relay designed for high-speed switching of AC loads. Ideal for industrial heating, motor control, and automation systems requiring silent and reliable operation.

Key Features:

• Control type: Linear control SCR
• Rated load current: 40 A
• Load voltage range: 90–250 V AC
• Input signal: 4–20 mA
• Isolation voltage: >4 kV
• Dielectric strength: >100 MΩ @ 500 VDC
• Built-in enhanced heat sink for thermal dissipation
• Overheat protection circuit (activates at 120 °C)
• High surge current and voltage resistance
• Compact module design for panel integration

Electrical Ratings:

• Input impedance: Optimized for 4–20 mA signal
• Trigger current: <10 mA
• Response time: <10 ms
• Leakage current: <2 mA
• Operating frequency: 47–63 Hz
• Ambient temperature: -20 °C to +80 °C

Applications:

• Industrial ovens and heaters
• Motor speed control
• Lighting systems
• Packaging and sealing machines
• Semiconductor and SMT equipment

Compliance & Notes:

• Conforms to EN60947-4-3 and EN60950
• RoHS compliant
• Recommended to use with proper heat dissipation and thermal paste for continuous high-current loads

Related Models:

• ACR-25LA – 25 A version
• ACR-60LA – 60 A version
• ACR-80LA – 80 A version
• ACR-F-40LA – Fuse-type variant with enhanced protection
• ACR-40DA – DC-controlled version for logic-level input systems
• LCR-F-40LA-H – High-temperature variant with extended heat sink