Features and functions
B1 according to EN ISO 5210
Standard:
Valve attachment
A, B2, B3, B4 according to EN ISO 5210
A, B, D, E according to DIN 3210
C according to DIN 3338
Option:
Special valve attachments: AF, AK, AG, B3D, ED, DD, IB1, IB3
A prepared for permanent lubrication of stem
Electromechanical control unit
Counter gear mechanism for end positions OPEN and CLOSED
Turns per stroke: 2 to 500 (standard) or 2 to 5,000 (option)
Limit switching
Single switches (1 NC and 1 NO) silver contact (Ag) for each end position, not galvanically
isolated
Standard:
Tandem switches (2 NC and 2 NO) for each end position, switches galvanically isolated
Triple switches (3 NC and 3 NO) for each end position, switches galvanically isolated
Intermediate position switch (DUO limit switching), adjustable for each direction of operation
Gold plated contacts (Au), recommended for low voltage actuator controls
Options:
Torque switching adjustable for directions OPEN and CLOSE
Torque switching
Single switches (1 NC and 1 NO) silver contact (Ag) for each direction, not galvanically
isolated
Standard:
Tandem switches (2 NC and 2 NO) for each direction, switches galvanically isolated
Gold plated contacts (Au), recommended for low voltage actuator controls
Options:
Potentiometer or 0/4 – 20 mA (electronic position transmitter)
Position feedback signal, analogue
(option)
Continuous indication, adjustable indicator disc with symbols OPEN and CLOSED
Mechanical position indicator (op-
tion)
Blinker transmitter (option for modulating actuators)
Running indication
Self-regulating PTC heater, 5 – 20 W, 110 – 250 V AC/DC
Standard:
Heater in switch compartment
24 – 48 V AC/DC (for actuators with 3-phase AC/1-phase AC/DC motors)
or 380 – 400 V AC/DC (for actuators with 3-phase AC motors)
Options:
A resistance type heater of 5 W, 24 V AC is installed in the actuator in combination with AM or AC actu-
ator controls.
Technical data for limit and torque switches
2 x 10
6
starts
Mechanical lifetime
Silver plated contacts:
24 V AC/DC
U min.
250 V AC/DC
U max.
20 mA
I min.
5 A at 250 V (resistive load)
3 A at 250 V (inductive load, cos phi = 0.6)
I max. AC current
0.4 A at 250 V (resistive load)
0.03 A at 250 V (inductive load, L/R = 3 µs)
7 A at 30 V (resistive load)
5 A at 30 V (inductive load, L/R = 3 µs)
I max. DC current
Gold plated contacts
5 V
U min.
30 V
U max.
4 mA
I min.
400 mA
I max.
50
SA 07.2 – SA 16.2 / SAR 07.2 – SAR 16.2
Technical data
SEM 01.1/SEM 02.1
