1Set RELECO C10-A10X 24VDC With S-10 Socket Power Relay 10A 250VAC 5Pins

RELECO · Plug-in Relay Set · C10-A10X · 24VDC · With Socket · In stock

What Is the RELECO C10-A10X Relay Set?

The RELECO C10-A10X is a 5-pin SPDT (Single Pole Double Throw) industrial plug-in relay with a 24V DC coil, rated for switching 10A at 250VAC. This listing includes not just the relay but also the matching S-10 DIN-rail mountable socket — so you receive the complete set: relay plus base. RELECO is a Spanish manufacturer known for robust industrial relays used extensively in European machinery, railway signaling, power generation, and building automation. The plug-in socket design means the relay can be replaced in seconds without tools or rewiring — critical for minimizing downtime in production environments.

In short: This is a complete relay-and-socket set — one RELECO C10-A10X 24VDC SPDT relay plus the matching S-10 DIN-rail socket. If your control panel uses plug-in relays and a relay has failed, you can swap it in under a minute without touching any wiring, then troubleshoot the old relay on the bench.

Understanding SPDT (5-Pin) Relay Operation

Pin Functions on a 5-Pin SPDT Relay

A 5-pin SPDT relay has the following pin assignments: pins for the coil (typically A1 and A2, receiving 24V DC), a common contact (COM), a normally-open contact (NO), and a normally-closed contact (NC). When the coil is de-energized, COM is connected to NC. When the coil is energized, the armature pulls over, breaking the COM-to-NC connection and making the COM-to-NO connection instead. This SPDT action allows one circuit to be switched between two different loads — for example, selecting between "run" and "standby" modes, or between two different speed windings of a motor.

Socket Wiring — Get It Right Once

The beauty of a socketed relay is that you wire the socket once and never touch it again. All future relay replacements are tool-free. The S-10 socket terminals are typically screw-clamp type, accepting wire up to 2.5mm². The socket base snaps onto standard 35mm DIN rail. Terminal numbers are usually molded into the socket housing — match them to the pin numbers on the relay (which are printed on the relay case or the datasheet). Most importantly, label each wire or take a clear photo of the existing socket wiring before removing it — relay sockets in industrial panels often have several wires landed on each terminal, and re-creating the connections from memory is error-prone.

Key Specifications

Frequently Asked Questions

Is a RELECO C10 interchangeable with other brands of plug-in relays?

The RELECO C10 series uses a specific pin arrangement and physical form factor. While some industrial relays follow standard footprints (the "ice cube" relay form factor is widely shared among Finder, Omron, TE Connectivity, and others), RELECO uses its own socket interface. A RELECO relay will only fit a RELECO socket — you cannot plug a Finder relay into an S-10 socket or vice versa. This is why this listing includes the matching socket: if you are installing a RELECO relay for the first time, you need the socket too.

What is the difference between the C10-A10X and other C10 variants?

The C10 series includes variants for different coil voltages (12VDC, 24VDC, 48VDC, 110VAC, 230VAC), different contact materials (standard silver alloy vs. gold-plated for low-level signal switching), and different contact configurations (SPDT vs. DPDT in the larger C12 series). The "A10X" suffix encodes the coil voltage and contact arrangement. When replacing, match the complete part number — substituting a different coil voltage variant will at best not work and at worst damage the control circuit.

Can this relay switch DC loads as well as AC?

Yes, but at a reduced current rating. The 10A rating is specified for AC resistive loads. For DC loads, the rating is typically lower (often 5-8A at 30V DC) because DC arcs are harder to extinguish than AC arcs. If you are switching an inductive DC load (motor, solenoid, contactor coil), the current rating should be further derated. Always check the relay datasheet for the specific DC switching capacity, and if your load is near the maximum, consider using a relay with a higher current rating or adding an external arc suppression circuit (diode, varistor, or RC snubber).

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