TOKR

TOK series plug-in relays, created on the OK platform, designed and built with materials and solutions that impart excellent characteristics of endurance and ruggedness; suitable for use in harsh operating environments and when subject to strong thermal shocks. Above all, these relays can be used in seismic environments thanks to their excellent resistance to shock and vibration.

Time delay on drop-out, switching time selectable from 0.1s to more than 1 hour. Switching time selector comprising 1 turn potentiometer. Switching time setting from 10 to 100% of full scale.

The excellent electrical and mechanical performance of these relays allows them to be used in the most demanding sectors, such as control and signalling functions in electricity generating stations, electrical transformer stations, rail transport, or in industries with continuous production processes.

Magnetic arc blow-out, ample contact clearance, exceptional efficiency in breaking DC loads and pulsed 5 kV insulation between open contacts.

Patented operating mechanism: mechanical life expectancy > 100,000,000 operations.

The contacts are mounted on individual and independent blades, deigned to assure unparalleled pressure values on the make and break contacts, in the region of 0.8…1N. Sliding and self-cleaning contact.

• EN 61810-1, EN 61810-2, EN 61810-7 Electromechanical elementary relays
• EN 61812-1 Time relays
• EN 61812-1 Time relays
• EN 60695-2-10 Fire hazard testing
• EN 50082-2, EN 61000-4 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