Electromagnetic Relay SPST-NO EB618135600 12VDC 5A/250VAC

Electromagnetic Relay SPST-NO EB618135600 12VDC 5A/250VAC is a single-pole single-throw normally open relay with a 12 V DC coil designed to switch AC loads up to 5 A at 250 VAC. The relay provides a compact electromechanical switching element suitable for integration into control panels, automation systems, and small appliances where a low-voltage DC control signal operates an AC circuit. Its normally open contact remains open when the coil is de-energized and closes when the coil is energized, enabling straightforward on/off control of connected loads.

Advantages

This relay combines a low-voltage coil with a contact rating adequate for many household and light industrial AC loads, offering a simple and reliable switching mechanism. Its compact form factor allows installation in space-constrained panels and devices, and the electromechanical design provides clear electrical isolation between the control input and the switched output. The normally open configuration is convenient for applications requiring default-off behavior until a control signal is applied.

Suitable for

• Control panels and relay modules
• Home automation and smart switching circuits
• Small appliances and fans
• Prototyping and educational electronics projects
• Industrial control where switching within 5 A / 250 VAC is required

Key specifications

• Relay type: Single-pole single-throw, normally open (SPST-NO)
• Coil voltage: 12 V DC
• Contact current rating: 5 A
• Contact voltage rating: 250 VAC
• Switching function: Electromechanical relay with magnetic coil
• Typical use: AC load switching controlled by DC signal

How to use

Mount the relay in a suitable socket or PCB footprint designed for its pin layout, ensuring secure electrical connections for both coil and contact terminals. Apply a stable 12 V DC control signal to the coil terminals to energize the relay; the normally open contact will close and allow the AC circuit to carry current up to the specified rating. When the coil voltage is removed, the contact returns to the open state. Observe correct polarity for the coil if indicated and ensure that wiring and fusing on the AC side protect against overloads and short circuits.

Usage recommendations

The relay should be used within its specified current and voltage limits; avoid switching inductive loads without appropriate suppression (such as snubbers or RC networks) and install suitable overload protection. Allow adequate ventilation and space for heat dissipation when switching near the maximum rated current, and follow applicable safety standards for mounting and isolation in electrical panels.