MODEL: MRP4
Final Control Elements
MINI-TOP ELECTRONIC ACTUATOR
(rotary type)
Functions & Features
• Small-size control valve actuator
• Electrical positioner incorporated
• 1/1000 high resolution
• Easy adjustment: electronic limiter at the valve open &
closed positions
• Overload protection
• Various power inputs
• CE marking available for 24 V DC power
Typical Applications
• Actuator for automatic control valve in pilotplants
• Air-conditioning in buildings or plants
• Micro-flow control for pharmaceutical injection
• For small-size control valves
MODEL: MRP4–[1][2][3][4]–[5][6][7]
ORDERING INFORMATION
• Code number: MRP4-[1][2][3][4]-[5][6][7]
Specify a code from below for each [1] through [7].
(e.g. MRP4-14LT-A0R)
• Special input range (for codes Z and 0)
[1] SPAN
1: 45 to 90 degrees
2: 90 to 180 degrees
[2] OPERATION TIME, TORQUE
4: 7 seconds / 90°, 5 N·m
5: 13 seconds / 90°, 5 N·m
[3] SEQUENTIAL CONTROL SIGNALS
L: Full-open/-closed signal
F: Forced open/close signal
B: Full-open/-closed and forced open/close signals
(Select 'With Terminal Box.')
E: Full-closed/overload signal (Not selectable for CE)
0: Without
[4] TERMINAL BOX
T: With
0: Without
[5] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
Z: Specify current (See INPUT SPECIFICATIONS)
Voltage
6: 1 – 5 V DC (Input resistance approx. 1 MΩ)
0: Specify voltage (See INPUT SPECIFICATIONS)
[6] CE MARKING
C: With
0: Without
[7] POWER INPUT
AC Power
K3: 100 – 120 V AC
(Operational voltage range 90 – 132 V, 47 – 66 Hz)
(Not selectable for CE)
L3: 200 – 240 V AC
(Operational voltage range 180 – 264 V, 47 – 66 Hz)
(Not selectable for CE)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
GENERAL SPECIFICATIONS
Degree of protection: IP55
Action: Direct or reverse; field selectable with DIP switches
(factory set to “reverse”)
(In “reverse” action, the output stem seen from the cover
turns counterclockwise with an input signal increase.)
Operation at abnormally low input: Counterclockwise turn,
clockwise turn or stop; field selectable with DIP switches
(factory set to“clockwise”)
Note: Counterclockwise or clockwise if seen from the cover.
Detectable input drop level: -16 ±2.5 %
Electrical connection
•No terminal box
Wiring conduit: G 1/2 female; cable connector with 1 meter
wire (0.5 mm
2
) provided
•Terminal box
Wiring conduit: G 1/2 female (two)
Terminal screws: M3 pillar terminal
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
