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MES3-255B

The MES3-255B is a compact single-phase solid state relay (SSR) from Mitsubishi's MES series, designed for precise AC load switching in industrial automation. This SSR features zero-crossing switching and phototriac isolation for reliable operation in harsh environments.

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Key Specifications
Parameter Specification
Model MES3-255B
Series MES (Standard SSR)
Load Voltage 100-240V AC
Load Current 3A (max)
Control Voltage 4-32V DC
Control Current 8mA (typical)
Switching Type Zero-crossing
Isolation Phototriac (4,000V AC)
Response Time ≤1 cycle (on/off)
3. Performance Features
✔ Precision Switching:

Zero-voltage turn-on (reduces EMI)

No contact bounce

10^8 operations lifespan

✔ Compact Design:

22.5mm width (DIN rail mountable)

LED status indicator

Screwless spring-clamp terminals

✔ Protection Features:

Built-in snubber circuit

Overvoltage protection (MOV)

Thermal overload detection

4. Physical Specifications
Parameter Value
Dimensions (W×H×D) 22.5 × 65 × 55 mm
Weight 0.08 kg
Terminal Type Spring clamp (0.2-2.5mm²)
Mounting DIN rail (TS35) or panel