Samson 3374-11 - Page 19

EB 8331-4 EN 19
Design and principle of operation
Safety
Motor switch-off By torque-dependent limit contacts
Degree of protection acc. to EN60529 IP54 with cable ducts
IP65 with cable glands (can be retrotted)
1)
Suspended mounting not permitted according to
EN60664
Overvoltage category II according to EN61010
Design and testing According to EN61010
Class of protection II according to EN61140
EMC Acc. to EN61000-6-2, EN61000-6-3 and EN61326
Degree of contamination 2 according to EN61010
Noise immunity According to EN61000-6-2
Noise emission According to EN61000-6-3
Environmental conditions
Mechanical environmental conditions Class 1M2 according to EN60721-3-1:1998
Class 2M1 according to EN60721-3-2:1998
Class 3M4 according to EN60721-3-3:1998
Class 4M4 according to EN60721-3-4:1998
Permissible temperatures
2)
Ambient 5 to 60°C
Storage –25 to +70°C
Ambient conditions
Humidity 5 to 95% relative humidity, no dew formation
Compliance
·
Additional electrical equipment
Limit contacts Mechanical Two adjustable limit contacts with changeover switches;
230VAC/1A · Without contact protection
Electronic Two adjustable limit contacts with relay and changeover
switches;
230VAC/1A · Without contact protection
RS-485 module (order no. 1402-1522) Module for Modbus-RTU communication
1)
Cable glands M20x1.5 with metal nut SW 23/24 (order no. 1400-8828)
2)
The permissible medium temperature depends on the valve on which the electric actuator is
mounted. The limits in the valve documentation apply.