The SI 400 consists of an end switch (normally closed contact / switch) and a magnetic switch contact (actuator) which is mounted on the floor stand R 472 with the fixing device SI 472 and on the telescopic stand R 474 with the fixing device SI 474. The stirring unit RW 47 digital can only be switched on through the SI 400, when the agitator is adjusted in the mixing vessel to the user designated height. The power of the RW 47 automatically shuts off if the stirring unit is lifted off the designated height. Also suitable for dispersing instrument T 65 basic/digital ULTRA-TURRAX®.

Dimensions end switch (B x T x H): 84 x 19 x 16 mm
Dimensions switch contact (B x T x H): 73 x 10 x 19 mm
Contact: 1 normally closed contact
Casing material: plastic (ABS)
Protection class according to DIN EN 60529: IP 67
Operating temperature: – 10 – 65 °C
Voltage / current: max. 250 VAC / 2A

Technical Data