Relay is divided into AC Relay (voltage AC) and DC Relay (voltage DC), which is used in Electric power industry, due to relay device can be used to cut off main circuit quickly, therefore, it is often used for motor control.
For elevator industry, people usually use the relay to control circuit of elevator on and off, so it is a very important elevator parts. Nowadays, the world’s top 10 famous relay brands are: schneider, ABB, SIEMENS, Mitsubishi, Allen-Bradley, Fuji Electric, Sprecher+Schuh, OMRON, TE Connectivity, EATON. But today we are just discussing Fuji Electric Relay used in the elevator industry.
Bifurcated contacts with excellent electrical conductivity/Fuji SH-4 Relay, SH-5 Relay
Description of SH Series Relays:
SH series industrial relays are designed to increase contact reliability and make them easy to use.
The relays’ highly reliable, bifurcated contacts allow them to be used in low-level circuits of 5V, 3mA.
Various optional function units such as auxiliary contact blocks, coil surge suppression units can be added to the relays, allowing fast and field modification.
Types and ratings
|Pole (No. of contacts)||4-pole||8-pole||5-pole|
|Contact arrangement||4NO, 3NO+1NC, 2NO+2NC||8NO, 7NO+1NC, 8NO+2NC
|5NO, 4NO+1NC, 3NO+2NC
2NO+3NC, 1NO+4NC, 5NC
|Thermal current (A)||10||10||10|
|Rated operational current (A)||
|Standard operating coil voltage||100V 50Hz/100-110V 60Hz, 200V 5OHz/200-220V 60Hz, 380V-400V 50Hz/400-440V 60Hz|
Electrical durability (AC-15)
|10 million operations
500,000 operations (at operational current)
|Operating cycles per hour||1,800|
|Ambient temperature||-5 to +50℃|
Ordering code system