Dresser RCS Actuators

NEMA 4/4X/6/7 Enclosure Gas Industri

MAR Models Only (Canadian Standards Association)

CSA NRTL/C Type 4/4X and 6

CSA NRTL/C Class I, Division 1, Groups C & D

CSA NRTL/C Class II, Division 1, Groups E, F & G

CSA NRTL/C Approved to UL Standard No. 429, Electrically Operated Valves

CSA NRTL/C Approved to UL Standard No. 1203, Electrical Equipment for use in Explosion - proof And Dust - Ignition - proof Hazardous (Classified) Locations

Models

A.C. Voltages

MAR-100

MAR-120

MAR-160

MAR-250

MAR-800

D.C. Voltages

DCR-100

DCR-160

DCR-250

DCR-800

Typical Applications

For open / Close or positioning control of:

· Part turn ball, butterfly, choke or plug valves

· Multi-turn valve types

· Ventilation dampers

· Select Multi-turn Valves

Temperature Range

Standard: -40°F to +150°F

-40°C to +66°C

Optional: -60°F to +120°F

-51°C to +49°C

(Note: With heater installed and energized)

Optional: Compliance to NFPA 130 and NFPA 502, capable of operation after exposure to ambient temperature of 482°F (250°C) for a minimum of 1 hour

Voltage

115 VAC, 1 Phase, 50/60 Hz.

230 VAC, 1 Phase, 50/60 Hz.

220 VAC, 3 Phase, 60 Hz.

440 VAC, 3 Phase, 60 Hz.

12 VDC

24 VDC

Torque Range

1,500 to 10,000 inch pounds

(169.5 to 1129.8 newton meters)

Speed Range

For 60 Hz. operation:

1.25 to 60 seconds for 90° revolution 5 to 12 RPM for multi-turns

Standard Features

AC (Single and Three Phase ) Voltages 4 – SPDT Switches, PTC Heater

DC Voltages, 4 – SPDT (High Current) Switches, Handwheel manual override with electrical isolation