Industrial Miniature Relay - Finder - 24V DC - 10A - 2 CO

The lockable test button allows you to manually operate the relay contacts (energize or de-energize) without applying voltage to the coil. This is useful for testing circuits during installation or maintenance without needing the full control signal, and the lockable feature ensures it stays in the tested position if needed.

'2 CO' stands for two Changeover contacts. Each changeover contact consists of a common terminal, a normally open (NO) terminal, and a normally closed (NC) terminal. This allows the relay to switch one common input to one of two outputs, effectively controlling two separate circuits independently.

The freewheeling diode, also known as a flyback diode, is connected in reverse across the coil. When the coil is de-energized, it provides a path for the collapsing magnetic field's energy to dissipate, preventing a high-voltage spike that could damage sensitive electronic components in the control circuit.

Yes, the contacts are rated for 10A at 250VAC, so it can switch AC loads. However, the coil voltage must be 24V DC.

Standard polarity for this relay means that for a 24V DC coil, the positive (+) voltage should be applied to terminal A1 (or 13 on some socket configurations) and the negative (-) voltage to terminal A2 (or 14 on some socket configurations) for correct operation and LED indication.

This relay is designed for Finder's 55 Series plug-in sockets, which provide the necessary electrical connections and mechanical mounting.

Consider your required control voltage (must be 24V DC), the current and voltage of the load you need to switch (must not exceed 10A/250VAC), and the number of circuits you need to control (two independent circuits maximum). Ensure the installation environment is suitable for IP20 protection.

Verify the 24V DC supply is present and correctly connected to the coil terminals (A1/13 and A2/14). Check for correct polarity. Ensure the control circuit is complete and the lockable test button is not engaged in the 'off' position.

This usually occurs due to exceeding the contact rating (current or voltage) or frequent switching of highly inductive loads without proper suppression. Replace the relay. Consider using a snubber circuit for inductive loads.

Check coil voltage and polarity. The LED is powered by the coil voltage; if the coil voltage is absent or incorrect, the LED will not illuminate. Ensure the relay is fully seated in its socket.

Inspect and clean the relay pins and socket contacts. Ensure the relay is securely seated. Check for vibration that might be causing loose connections. If the issue persists, the contacts may be worn or contaminated, requiring relay replacement.