MOK-V2

MOK-V2 series devices are measuring relays with adjustable hysteresis. The device measures a voltage in a monitored circuit; the contacts switch to 'make' status when this parameter exceeds the pick-up threshold selected by the user and expressed as a percentage of the nominal voltage. The relay reverts to 'break' status when the measured value drops below the drop-out threshold (also selected by the user).

These models are suitable for the supervision and protection of electrical equipment used in the most demanding sectors, such as electricity generating stations, electrical transformer stations, industries using continuous production processes, and railways, including both trackside equipment and rolling stock.

The relay features two adjustable voltage thresholds: Pick-up Voltage and Drop-out Voltage. The PICK-UP VOLTAGE can be set at between 60% and 120% of nominal voltage. The DROP-OUT VOLTAGE can be set at between 70% and 98% of the pick-up voltage.

Particularly suitable for monitoring battery voltages in the rail-tram-trolley vehicles sector.

• EN 61810-1, EN 61810-2, EN 61810-7 Electromechanical elementary relays
• EN 60695-2-10 Fire hazard testing
• EN 50082-2 Electromagnetic compatibility
• EN 60529 Degrees of protection provided by enclosures
• EN 60077 Electric equipment for rolling stock - General service conditions and general rules
• EN 50155 Electronic equipment used on rolling stock
• EN 61373 Shock and vibration tests, Category 1, Class B
• EN 45545-2 Requirements for fire behaviour of materials and components – Product No. EL10 – Requirement R26, V0
• ASTM E162, E662 Standard Test Method for Surface Flammability of Materials, Standard Test Method for Specific Optical Density of Smoke