Phoenix Contact REL-MR-230AC/21-21 Print Relay, 230 V AC, 8 A, 2 PDT

The Phoenix Contact REL-MR-230AC/21-21 is a high-performance pluggable miniature power relay engineered for reliable operation in industrial control and automation environments. This monostable relay is designed for direct mounting via solder pins, providing a secure connection for electronic circuits requiring robust switching capabilities. With a coil voltage of 230 V AC and a configuration of two PDT contacts, it offers versatile signal isolation and power management solutions for various electrical systems.

Advantages

This miniature relay stands out due to its high switching capacity and compact design, which allows for efficient space utilization on printed circuit boards. The use of silver-nickel contact material ensures excellent conductivity and long-term durability, even under frequent switching cycles. Its wide operating temperature range makes it suitable for deployment in challenging industrial conditions, while its compliance with international standards guarantees consistent quality and safety in demanding electrical applications.

Suitable for

• Industrial automation and control systems
• Signal isolation in electronic circuits
• Power switching for small to medium loads
• Integration into control panels and relay modules

This relay may not be suitable for applications requiring high-frequency switching or environments where extreme vibration or shock levels exceed standard industrial specifications. It is also not intended for direct high-power motor starting without appropriate additional protection circuitry.

Key specifications

• Coil voltage: 230 V AC
• Contact configuration: 2 PDT (Double-Pole Double-Throw)
• Maximum switching current: 8 A
• Maximum switching voltage: 250 V AC / 250 V DC
• Maximum switching power: 2000 VA
• Operating temperature range: -40 °C to +85 °C
• Connection type: Solder pins

How to use

The relay is designed for installation onto compatible relay sockets or direct soldering onto a printed circuit board. Ensure that the power supply is disconnected before installation to prevent electrical hazards. Align the solder pins with the corresponding mounting points and secure the component firmly. Verify that the control voltage matches the 230 V AC specification before energizing the circuit to ensure proper relay operation.

What to consider before purchase

• Verify that the control voltage of your system matches the 230 V AC coil rating.
• Ensure the load requirements do not exceed the 8 A current limit.
• Check the physical dimensions and pin layout for compatibility with your existing circuit board or socket.
• Confirm that the environmental conditions remain within the specified -40 °C to +85 °C range.

Usage recommendations

For optimal performance and longevity, ensure that the relay is protected from excessive moisture and dust. Regularly inspect the solder connections for signs of wear or oxidation, especially in high-humidity environments. Always adhere to the maximum switching power ratings to prevent premature contact degradation.