Siemens SIRIUS DIN Rail Snap-On Timer Relay 1-Contact 24V DC, 200V AC, 24V AC, 240V AC, 0.05 to 1 s, 1 CO 7PV1511-1AP30

The Siemens SIRIUS 7PV1511-1AP30 timer relay is an electronic ON-delay relay engineered for use in industrial and automation control panels. This device is built to snap directly onto standard DIN rails, providing an efficient and reliable method for introducing programmable timing delays into relay logic circuits and system startup sequences.

With a selectable timing range spanning from 0.05 to 1 second, it is ideal for creating precise short ON-delay intervals required by machinery interlocks, conveyor systems, and process automation. It includes a single change-over contact (1 CO) rated at 3A, making it suitable for switching various control loads such as contactors, signal lamps, or other low-power actuators in an industrial environment.

The relay is compatible with multiple input voltages, accepting 24V DC as well as 24V AC, 200V AC, and 240V AC supplied directly to the device. This broad compatibility allows it to integrate seamlessly into diverse panel designs worldwide. Screw terminals are employed to ensure solid and vibration-resistant wire connections during installation.

Designed for durability and reliable operation, the relay boasts both IP40 and IP20 protection levels, defending the internal electronics against dust and accidental contact, and making it fit for cabinet mounting in harsh industrial spaces. Its robust SIRIUS series build quality complies with major international standards, including IEC and EN requirements.

With a compact enclosure (only 17.5 mm wide) and a standard 90 mm height, the relay saves valuable space in crowded control cabinets. It remains fully operational across a wide ambient temperature spectrum from - 25°C up to 55°C, ensuring stable performance even in extreme site conditions.

Typical applications include use in manufacturing lines, HVAC control panels, building automation, test rigs, and other commercial or industrial installations where reliable short-delay switching is critical for process safety, sequencing, or system protection.

Explore more professional relays and automation components from Siemens in the Timer Relay section on EnvMart.