The Siemens 3RQ4914-7BP00 is a SIRIUS 3RQ4 coupling relay in the narrow housing format, carrying a single change-over contact rated for 60 V DC coil voltage. This relay sits between a PLC output and the load circuit, providing galvanic isolation and signal conditioning — common in control panels where the controller's output card cannot drive the load directly or where voltage levels differ between the logic side and the field side.
The 60 V DC coil rating means this relay is intended for DC control circuits, not the 24 V DC standard found in most modern panels. The single change-over contact (SPDT) provides one normally-open and one normally-closed set, giving flexibility to switch either a load on or off with the same relay. For applications requiring multiple isolated contacts, a multi-pole sibling in the same family would be the right choice.
The narrow design clips onto a standard DIN rail, saving panel width compared to a full-width interface relay. The packaging dimensions of 95.00 x 93.00 x 65.00 mm give the envelope for spacing in the enclosure.
RoHS compliance is confirmed effective 26-09-24, and REACH candidate-list information is available for downstream documentation.