TRANSFORMERS for OUTDOOR and HAZARDOUS …

1 For Over 70 YearsTRANSFORMERS for OUTDOOR and HAZARDOUS LOCATIONSDESCRIPTION:SELECTING THE RIGHT TRANSFORMER FOR YOUR APPLICATIONT ransformers for OUTDOOR and HAZARDOUS LocationsMost dry type TRANSFORMERS are installed indoors in dry, clean locations where general purpose enclosures are sufficient protection. For OUTDOOR applications or for installations in areas with dirty, dusty, harsh, classified areas or corrosive environments care must be taken to choose the proper transformer type for the particular offers four distinct models which withstand from the mildest to the harshest conditions:TYPE 3R Indoor/ OUTDOOR VentilatedTYPE SCR OUTDOOR Ventilated EnhancedMODEL CD OUTDOOR Ventilated 3R (Class 1, Division 2) TYPE RET OUTDOOR Epoxy Encapsulated (Class 1, Division 2)TYPE 3R.

2 Indoor/ OUTDOOR VentilatedProvides protection against rain & falling sleet or applications as well as indoor locations where dripping water is a concern. Typical Applications: T unnels, mines or sheltered OUTDOOR SCR: OUTDOOR Ventilated EnhancedEnclosure with 3R hoods as well as weather-buffer screens provide an extra degree of protection against blowing rain or snow without restricting normal cooling air flow. Typical Applications: Roof top installation with air conditioning unitsMODEL CD: OUTDOOR Ventilated 3R (Class 1, Division 2)Ventilated TRANSFORMERS with 3R hoods suitable for locations with HAZARDOUS atmospheres Typical Applications: Mining, petrochemical and pulp & paper installationsTYPE RET: OUTDOOR Epoxy Encapsulated (Class 1, Division 2)Epoxy-encapsulated, non-ventilated TRANSFORMERS completely seals element from the environment.

3 No moisture or containments affects winding. The heat dissipation is through the enclosure radiation only. Typical Applications: Petrochemical plants, steel mill, mines and food to ConsiderMoisture & Humidity Dripping and falling Water Water spraying from different angles Wind blown rain and snow Falling iceIndustrial Ecosystem Dust or wood fibers are present Poor air quality Flammable gases or vapors Concentration of Flammable materials may existBACV entilation OpeningsTYPE 3R: INDOOR/ OUTDOOR VENTILATED The Marcus Type-3R ventilated (MTWP) 3 phase transformer provides a degree of protection for indoor/ OUTDOOR applications.

4 Exterior applications where foreign debris such as snow, ice or rain are a :Ratings 3 KVA - 450 KVAE nclosure Type NEMA3R VentilatedDescription Protection against rain, sleet, snow, ingress of foreign objects, falling dirt and external formation of Class 220 CTemperature Rise 150 CTemperature Code for Class 1 Division 2 N/AConstruction Features ANN ventilated EnclosureApplications OUTDOOR Use: Tunnels Mines, Pumping stations where dripping and splashing water is a : 3 Phase, 60HZ KVA Catalogue # Catalogue # A B C Weight (600V) (480V) in (mm) in (mm) in (mm) Lbs.

5 (kg) 6 MTWP6A1 MTWP6B1 21 (533) (333) (470) 80 (36) 10 MTWP10A1 MTWP10B1 21 (533) (333) (470) 140 (64) 15 MTWP15A1 MTWP15B1 21 (533) (333) (470) 188 (86) 30 MTWP30A1 MTWP30B1 (572) (465) 21 (533) 275 (126) 45 MTWP45A1 MTWP45B1 27 (686) (516) (648) 410 (187) 75 MTWP75A1 MTWP75B1 (921) (650) (770) 600 (274) (921) (650) (770) 1000 (457) 150 MTWP150A1 MTWP150B1 (1188) (719) 35 (890) 1250 (480) 225 MTWP225A1 MTWP225B1 (1188) (719) 35 (890) 1750 (800) 300 MTWP300A1 MTWP300B1 52 (1320) (783) (927) 2400 (1097) 450 MTWP450A1 MTWP450B1 52 (1320) (783) (927) 2900 (1325)See General Catalogue for Type-3R, single phase (MSWP)TYPE-SCR : OUTDOOR VENTILATED ENHANCED The Marcus 3R (MTWP-SCR) transformer is rated for installations on rooftop applications.

6 Our weather buffer screens provide protection from wind, snow, rain and airborne debris without affecting normal cooling airflow. The benefit of using a 3R-SCR ventilated transformer over the Nema 4 epoxy style transformer include lower cost, reduced weight and easier :Ratings 30 KVA - 150 KVAE nclosure Type NEMA3R Enhanced VentilatedClassification Weather buffer screens: Extra protection against blowing rain or snow without restricting normal cooling air Class 220 CTemperature Rise 150 CTemperature Code for Class 1 Division 2 N/AConstruction Features ANN ventilated EnclosureApplications Enhanced OUTDOOR Use Rooftop installations with air conditioning units, ChillersBACV entilation OpeningsDimensions: 3 Phase, 60HZ KVA Catalogue # Catalogue # A B C Weight (600V) (480V) in (mm) in (mm) in (mm) Lbs.

7 (kg) 30 MTWP30A1-SCR MTWP30B1-SCR (572) (465) 21 (533) 275 (126) 45 MTWP45A1-SCR MTWP45B1-SCR 27 (686) (516) (647) 410 (187) 75 MTWP75A1-SCR MTWP75B1-SCR (921) (650) (772) 600 (274) (920) (650) (772) 1000 (457) 150 MTWP150A1-SCR MTWP150B1-SCR (1118) (719) 35 (889) 1250 (480) 225 MTWP225A1-SCR MTWP225B1-SCR (1118) (719) 35 (889) 1750 (800)MESH DOORMODEL-CD : OUTDOOR VENTILATED 3R (CLASS 1 DIVISION 2)The Marcus model-CD (MTWPCD) transformer is for use in applications where Class 1 Division 2 is required. The benefits of the model-CD over the epoxy encapsulated transformer is in its lighter weight and lower :Ratings 15 KVA - 150 KVAE nclosure Type NEMA3R VentilatedDescription Ventilated OUTDOOR transformer.

8 Suitable for locations with HAZARDOUS Class 220 CTemperature Rise 115 CTemperature Code for Class 1 Division 2 T3 CApproved Groups A, B, C & DConstruction Features ANN ventilated EnclosureApplications OUTDOOR HAZARDOUS locations : Mines, Oil Extraction Environment, Petrochemical, Pulp & paperBACV entilation OpeningsDimensions: 3 Phase, 60HZ KVA Catalogue # Catalogue # A B C Weight (600V) (480V) in (mm) in (mm) in (mm) Lbs. (kg) 15 MTWPCD15A1 MTWPCD15B1 (572) (465) 21 (533) 188 (86) 30 MTWPCD30A1 MTWPCD30B1 27 (686) (516) (648) 275 (126) 45 MTWPCD45A1 MTWPCD45B1 27 (686) (516) (648) 410 (187) 75 MTWPCD75A1 MTWPCD75B1 (921) (650) (772) 600 (274) (921) (650) (772) 1000 (457) 150 MTWPCD150A1 MTWPCD150B1 (1188) (719) 35 (889) 1250 (480)CLASS 1 DIVISION 2 Canadian Standards and Electric CodeGROUP CLASSIFICATION CONDITION OF OPERATIONGROUP A Atmospheres containing acetyleneGROUP B Atmospheres containing butadiene, ethylene oxide, hydrogen, (or gases equivalent to hydrogen)

9 , propylene oxideGROUP C Atmospheres containing acetaldehyde, cyclopropane, diethyl ether, ethylene, hydrogen sulfide, or unsymmetrical dimethyle hydrazine (or other of equivalent hazardGROUP D Atmosphere containing acetone, acrylonitrile, alcohol, ammonia, benzene, benzol, butane, ethylene, gasoline, hexane, isoprene, natural gas, propane, propylene, vinyl acetate, xylenes, or other vapours or gases of equivalent hazardTYPE-RET: OUTDOOR EPOXY ENCAPSULATED (CLASS 1 DIVISION 2)For installations in HAZARDOUS locations for maximum protection against the environment.)

10 The Nema 4 enclsoure is non-ventilated which prevents exposure of the element to the :Ratings 3 KVA - 150 KVAE nclosure Type NEMA4 (4X Available), Non-VentilatedDescription Non Ventilated OUTDOOR transformer seals element from exterior Class 220 CTemperature Rise 115 CTemperature Code for Class 1 Division 2 T3 CApproved Groups A, B, C & DConstruction Features Epoxy encapsulated (Regular paint or stainless steel enclosure available)Applications OUTDOOR HAZARDOUS locations (Petrochemical Plants, Steel Mills, Mines, Oil Extraction Environment, Food IndustryDimensions: 3 Phase, 60HZ KVA Catalogue # Catalogue # A B C Weight (600V) (480V) in (mm) in (mm) in (mm) Lbs.)