Description of VDIS Unit

The VDIS unit is a self-powered voltage detecting and indicating system.

The VDIS unit is integrated into Schneider Electric cubicles, flush-mountable and designed according to standard IEC 62271-213: 2021. The VDIS unit is fitted with a three LED display and detects the operating voltage presence/absence on the Cubicle main circuit.

NOTE: VDIS is not intended to distinguish between voltage not present (that is U < 10% of nominal voltage) and dead circuit state (that is U = 0 V).

The VDIS receives the information through the capacitive sensor installed inside the insulator in PIX.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH You must use the VDIS unit to detect and indicate the presence or absence of operating voltage. You must not use the VDIS unit to distinguish between voltage not present (that is U < 10% of nominal voltage) and dead circuit state (that is U = 0 V). Failure to follow these instructions will result in death or serious injury.

Range of VDIS Unit Variants

For each version of VDIS unit, there are several variants (depending if it includes Voltage Output option or not). These variants can be identified as follows:

VDIS unit variant	Reference
Standard VDIS	VDIS003STD, VDIS004STD, VDIS005STD, VDIS006STD, VDIS007STD, VDIS008STD and VDIS009STD

Variants are required to be selected according to the following criteria:

The range of MV for the selected PIX product
The value of capacitor used inside the bushings of cubicle system
The network frequency
Associated devices.

Identifying Unit Parts

The VDIS unit consists of two sub-assemblies:

A protection sub-assembly with open seal
An indication sub-assembly

Keep the wiring set that is currently inserted in the existing unit. Disassembling the existing unit is required to recover the wiring set and assemble it into the new VDIS unit.