MTR DMA 30C120
$613.49
Item Code: 267253
MTR DMA 30C120 (267253)
- 30 Second
90 Degree Stroke
27 in-lbs. torque
120 Vac (+10% / -15%) 50 – 60 Hz, 20 VA
NEMA Type 1
Replaces: 46050-3
Description
The DUNGS DMA actuator drives CCW from 0° to 90° via a 4 - 20 mA input signal. The DMA
is available in three different fixed speeds: 6, 12, and 30 seconds. The DMA has one
independent, field adjustable auxiliary SPDT switch and two field adjustable end of travel
switches. 4-20 mA feedback can be used to drive a slave motor (3 actuators maximum) in
parallel. Maximum stroke (Y Max; span) is adjustable from 25Ý to 90Ý, and minimum stroke
(Y min; zero) is adjustable from 0Ý to 75% of set span.
Application
When mounted on the DUNGS DMK butterfly control valve, the DMA is used to automatically
modulate the amount of natural gas, butane, propane and/or air supplied to a gas burning
piece of equipment.
Specifications
Electrical Ratings
110 – 120 Vac 50 – 60 Hz
Power Rating
Holding: Max. 2.0 VA
Operation: Max. 5.4 VA
Enclosure Rating
NEMA Type 1 (NEMA Type 4 with optional cover D240456)
Electrical Connection
Screw Terminals with ½” NPT conduit connection
Operation Time
100% Duty cycle
Ambient Temperature Rating
-15 F to +120 F (-10 C to +50 C)
(End of Travel) Switches (ST)
Two Field Adjustable Switches: Min. and Max: Limit Stroke of actuator
Auxiliary Switch (MV)
One SPDT, Field adjustable switch. 1.5 A resistive, 1.5 A FLA, 9 A LRA, 120 Vac
CCW Stroke as viewed from the bottom on increasing input signal.