SCHNEIDER ELECTRIC SPD910 (01) PDF DOCUMENT

The installation of the SCHNEIDER ELECTRIC SPD910 involves the following steps as shown in the diagrams:

1. Use two screws to secure the mounting ring to the desired surface.

2. Insert the main unit into the mounting ring.

3. Open the cover to access the internal components. A small diagram suggests using a screwdriver to release a latch.

4. Proceed with wiring and adjusting the switching point.

To adjust the upper or lower switching point, turn the dial labeled ‘B’ inside the unit to the desired pressure setting on the scale.

The electrical diagram shows a single-pole, double-throw (SPDT) switch with three terminals:

Terminal 1: Common

Terminal 2: Normally Open (NO)

Terminal 3: Normally Closed (NC)

The recommended installation for the SCHNEIDER ELECTRIC SPD910 is a vertical position, as this corresponds to the factory calibration (Fig. 3).

The orientation during horizontal installation affects the switching points:

Electrical connections upward (Fig. 4): The switching points will be 11 Pa higher.

Electrical connections downward (Fig. 5): The switching points will be 11 Pa lower.

The drilling template (section 7) specifies a central hole with a diameter of Ø7 and two mounting holes, each with a diameter of Ø2.2.

A safety note warns that with the safety cover removed, contact with terminals 1, 2, and 3 poses a lethal C hazard due to mains power voltage.

Yes, there is a note that states: “Do not turn the dial (B) into the area of the black mark!”