Product Overview: 8-Pin Electromagnetic Power Relay (220VAC / 10A)
The 8-pin Power Relay (commonly known by models like MK2P-I or LY2NJ) is a robust industrial-grade switch designed for heavy-duty applications. It uses an electromagnetic coil to control high-voltage circuits safely. Featuring a DPDT (Double Pole Double Throw) configuration, it can control two independent circuits simultaneously, making it a staple for ATS (Automatic Transfer Switch) panels, motor control, and household automation.
Technical Specifications
| Feature | Specification |
| Coil Voltage | 220V AC (50/60Hz) |
| Contact Capacity | 10A @ 250VAC / 30VDC (Resistive) |
| Contact Configuration | DPDT (2 Form C: 2NO + 2NC) |
| Max Switching Power | 2500 VA / 300 W |
| Mechanical Life | ≥ 10,000,000 Operations |
| Electrical Life | ≥ 100,000 Operations |
| Dielectric Strength | 2000 VAC (1 min between contacts) |
| Insulation Resistance | 500 MΩ @ 500 VDC |
| Operating Temp. | -40°C to +55°C |
Pin Configuration (Standard MK2P-I)
An 8-pin relay is generally wired as follows:
- Coil (Pins 2 & 7): Connect your 220V AC supply here to trigger the relay.
- Common (Pins 1 & 8): The “input” points for the circuits you are switching.
- Normally Closed (Pins 4 & 5): Connected to Common when the relay is OFF.
- Normally Open (Pins 3 & 6): Connected to Common when the relay is ON.
Key Features
- Heavy Duty Switching: Capable of handling up to 10A, suitable for pumps, heaters, and industrial machinery.
- Transparent Housing: Allows for easy visual inspection of the contact status and mechanical health.
- Plug-in Design: Designed for use with standard octal (round) or blade-type socket bases for easy rail mounting and replacement.
- Dual Circuit Control: The DPDT setup allows you to switch the “Live” and “Neutral” lines simultaneously or control two completely different devices with one trigger.
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