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Transformer Catalog
Dry-Type Distribution / Industrial Control Transformers / Auto-Transformers / Line Reactors / Custom Dry-Type Distribution / Custom Industrial Control
MS - Single Phase
For installation in indoor locations with a clean, dust free and chemical - free air circulation. Provides a degree of protection against incidental contact by non-authorized personnel.
For installation in indoor locations with a clean, dust free and chemical - free air circulation. Provides a degree of protection against incidental contact by non-authorized personnel.
MT - Three Phase
General Purpose Transformer
For installation in indoor locations with a clean, dust free and chemical - free air circulation. Provides a degree of protection against incidental contact by non-authorized personnel
General Purpose Transformer
For installation in indoor locations with a clean, dust free and chemical - free air circulation. Provides a degree of protection against incidental contact by non-authorized personnel
MK - Three Phase K-Factor
For Non-linear Loads
Specifically designed and engineered for safe, efficient handling of non-linear loads created by computers, video display terminals, electronic ballasts, fax and copy machines and programmable controllers.
For Non-linear Loads
Specifically designed and engineered for safe, efficient handling of non-linear loads created by computers, video display terminals, electronic ballasts, fax and copy machines and programmable controllers.
MKS - Single Phase K-Factor
Specifically designed and engineered for safe, efficient handling of non-linear loads created by computers, video display terminals, electronic ballasts, fax and copy machines and programmable controllers.
Specifically designed and engineered for safe, efficient handling of non-linear loads created by computers, video display terminals, electronic ballasts, fax and copy machines and programmable controllers.
MDI - Three Phase Drive Isolation
For use with AC and DC adjustable speed drives which generate mechanical stresses and harmonic currrents beyond the design criteria of normal general purpose transformers.
For use with AC and DC adjustable speed drives which generate mechanical stresses and harmonic currrents beyond the design criteria of normal general purpose transformers.
MSWP - Single Phase Outdoor
Enclosure 3R provides superior protection from rain, sleet or snow.
Also suitable for indoor use in tunnels, mines and pumping stations where dripping and splashing water is a problem.
Enclosure 3R provides superior protection from rain, sleet or snow.
Also suitable for indoor use in tunnels, mines and pumping stations where dripping and splashing water is a problem.
MTWP - Three Phase Outdoor
Enclosure type 3R provides superior protection from rain, sleet or snow. Also suitable for indoor use in tunnels, mines and pumping stations where drilling and splashing water is a problem.
Enclosure type 3R provides superior protection from rain, sleet or snow. Also suitable for indoor use in tunnels, mines and pumping stations where drilling and splashing water is a problem.
RES - Single Phase Epoxy Encapsulated
Designed to withstand the harshest indoor and outdoor applications, our epoxy encapulated transformers are completely enclosed in Type 3R enclosures and provide safe, reliable protection from corrosive atmospheres, hazardous gases, dust and moisture. For use in pulp and paper plants, steel mills, petrochemical plants, food processing facilities, breweries, mines, marine and shipboard installations. Certified for Class 1, Division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
Designed to withstand the harshest indoor and outdoor applications, our epoxy encapulated transformers are completely enclosed in Type 3R enclosures and provide safe, reliable protection from corrosive atmospheres, hazardous gases, dust and moisture. For use in pulp and paper plants, steel mills, petrochemical plants, food processing facilities, breweries, mines, marine and shipboard installations. Certified for Class 1, Division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
RET - Three Phase Epoxy Encapsulated
Designed to withstand the harshest indoor and outdoor applications, our epoxy encapulated transformers are completely enclosed in Type 3R enclosures and provide safe, reliable protection from corrosive atmospheres, hazardous gases, dust and moisture. For use in pulp and paper plants, steel mills, petrochemical plants, food processing facilities, breweries, mines, marine and shipboard installations. Certified for Class 1, Division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
Designed to withstand the harshest indoor and outdoor applications, our epoxy encapulated transformers are completely enclosed in Type 3R enclosures and provide safe, reliable protection from corrosive atmospheres, hazardous gases, dust and moisture. For use in pulp and paper plants, steel mills, petrochemical plants, food processing facilities, breweries, mines, marine and shipboard installations. Certified for Class 1, Division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
MTZ- Marcus Harmonic Mitigating (Harmonic Sweeper)
Where to use Harmonic Sweeper™ (stand alone or in parallel with Marcus MT models)
In commercial, institutional and industrial buildings
With UPS or special generator groups
Industrial rectifier
PWM drives for elevators
UV filtering lights
Electronic ballast lighting
Where to use Harmonic Sweeper™ (stand alone or in parallel with Marcus MT models)
In commercial, institutional and industrial buildings
With UPS or special generator groups
Industrial rectifier
PWM drives for elevators
UV filtering lights
Electronic ballast lighting
MTD - Double Harmonic Mitigating
The DOUBLE HARMONIC SWEEPERTM gives you the opportunity to treat the 3rd, 5th &
7th harmonics with a single transformer having a double secondary with both 0 degree and 30 degree phase displacement. Furthermore the DOUBLE HARMONIC SWEEPER has a low impedance with low voltage distortion, because the triplen harmonics are cancelled in the magnetic circuit and do not circulate in the primary winding. The 5th and 7th harmonics are eliminated due to the phase shift angle of 30° between the two outputs .
This harmonic cancellation transformer may be used with loads having a high content of 3rd,
5th & 7th harmonics like line-neutral rectifiers. The DOUBLE HARMONIC SWEEPER™ is an effective double phase shift transformer (similar to a delta/double zig-zag). Simply install the unit, split and equally balance the non-linear load between the double outputs, and the harmonic content will be effectively reduced.
The DOUBLE HARMONIC SWEEPERTM gives you the opportunity to treat the 3rd, 5th &
7th harmonics with a single transformer having a double secondary with both 0 degree and 30 degree phase displacement. Furthermore the DOUBLE HARMONIC SWEEPER has a low impedance with low voltage distortion, because the triplen harmonics are cancelled in the magnetic circuit and do not circulate in the primary winding. The 5th and 7th harmonics are eliminated due to the phase shift angle of 30° between the two outputs .
This harmonic cancellation transformer may be used with loads having a high content of 3rd,
5th & 7th harmonics like line-neutral rectifiers. The DOUBLE HARMONIC SWEEPER™ is an effective double phase shift transformer (similar to a delta/double zig-zag). Simply install the unit, split and equally balance the non-linear load between the double outputs, and the harmonic content will be effectively reduced.
MS-CC Single Phase Open Type Core & Coil
Designed for installation within cabinets where no additional individual enclosure is required. Suitable for feeding MCC's and switchgear where space is at a premium.
Designed for installation within cabinets where no additional individual enclosure is required. Suitable for feeding MCC's and switchgear where space is at a premium.
MO - Single Phase Open Style
Indoor type open style / single phase [MO]
Operating Frequency: 60 Hz (50/60 Hz available on some models)
Insulation : 130 deg c: (25-1000 VA) - Class B 80 deg c Temp Rise
155 deg c: (1500-7500 VA) - Class F 100 deg c Temp Rise
Sound level: less than 40 db
Polarity: Additive
Indoor type open style / single phase [MO]
Operating Frequency: 60 Hz (50/60 Hz available on some models)
Insulation : 130 deg c: (25-1000 VA) - Class B 80 deg c Temp Rise
155 deg c: (1500-7500 VA) - Class F 100 deg c Temp Rise
Sound level: less than 40 db
Polarity: Additive
MC - Single Phase Closed Type
Indoor Type Enclosed style / single phase
Operating Frequency: 60 Hz (50Hz avaiable on some models)
Insulation: 130 deg c (50-1000 VA) - Class B 95 deg c Temp Rise
155 deg c (1500-5000 VA) - Class F 115 deg c Temp Rise
Sound Level: less than 40 db
Polarity: Additive
Indoor Type Enclosed style / single phase
Operating Frequency: 60 Hz (50Hz avaiable on some models)
Insulation: 130 deg c (50-1000 VA) - Class B 95 deg c Temp Rise
155 deg c (1500-5000 VA) - Class F 115 deg c Temp Rise
Sound Level: less than 40 db
Polarity: Additive
MT-CC - Three Phase Open Type Core & Coil
Designed for installation within cabinets where no additional individual enclosure is required. Suitable for feeding MCC's and switchgear where space is at a premium.
Designed for installation within cabinets where no additional individual enclosure is required. Suitable for feeding MCC's and switchgear where space is at a premium.
MTB - Single Phase Open Style (fuse block use)
Open style transformer designed for use with fuse block
Operating Frequency: 60 Hz (50Hz avaiable on some models)
Insulation: 130 deg c (25-1000 VA)
80 deg c Temp Rise Class B
Sound Level: less than 40 db
Polarity: Additive
Open style transformer designed for use with fuse block
Operating Frequency: 60 Hz (50Hz avaiable on some models)
Insulation: 130 deg c (25-1000 VA)
80 deg c Temp Rise Class B
Sound Level: less than 40 db
Polarity: Additive
TPO - Three Phase Open Type
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db
AC&AS - Single Phase Auto Closed Type
Output VA range: 0.5-20 (Series ACK), 0.5-20 (Series ASK), 0.5-7.5 (Series ACM)
Operating Frequency: 50/60 Hz (ACM), 60 Hz (Series ACK), 60 Hz (Series ASK)
Insulation: 130 deg c: Series ACK (0.5-10 KVA)
Series ASK (0.5-7.5 KVA)
Series ACM (0.5-2 KVA)
155 deg c: Series ASK (10-20 KVA)
Series ACM (3-7.5 KVA)
Series ACK (15-20 KVA)
Sound Level: :Less than 40 dB
Output VA range: 0.5-20 (Series ACK), 0.5-20 (Series ASK), 0.5-7.5 (Series ACM)
Operating Frequency: 50/60 Hz (ACM), 60 Hz (Series ACK), 60 Hz (Series ASK)
Insulation: 130 deg c: Series ACK (0.5-10 KVA)
Series ASK (0.5-7.5 KVA)
Series ACM (0.5-2 KVA)
155 deg c: Series ASK (10-20 KVA)
Series ACM (3-7.5 KVA)
Series ACK (15-20 KVA)
Sound Level: :Less than 40 dB
MEC - Single Phase Epoxy Encapsulated Control
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: 130 deg c Class B (250 VA - 750 VA)
155 deg c Class F (1000 VA - 2000 VA)
Sound Level:Less than 40 dB
Polarity: Additive
For installation in locations where exposureto the atmosphere could damage the core and coils. Elements are completely enclosed in type 3R and 12 wnclosures to ensure safe and trouble-free service in damp, corrosive and suty locations. Suitable for use in refineries, mines, pulp and paper plants, mills and marine environments.
Suitable for Class 1, Division 2 locations
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: 130 deg c Class B (250 VA - 750 VA)
155 deg c Class F (1000 VA - 2000 VA)
Sound Level:Less than 40 dB
Polarity: Additive
For installation in locations where exposureto the atmosphere could damage the core and coils. Elements are completely enclosed in type 3R and 12 wnclosures to ensure safe and trouble-free service in damp, corrosive and suty locations. Suitable for use in refineries, mines, pulp and paper plants, mills and marine environments.
Suitable for Class 1, Division 2 locations
MLR - Line Reactor Open Type
Rated Parameters: Nominal Inductance +/- 10% tolerance at rated current. 95% of nominal inductance at 150% rated current
Operating Frequency: 60 Hz Fundamental Current maximum
Insulation: Class F (155 deg c), but with low temperature rise
Sound Level: 2 - 25 amps <= 55 dB; 35 - 110 amps <= 60dB
Rated Parameters: Nominal Inductance +/- 10% tolerance at rated current. 95% of nominal inductance at 150% rated current
Operating Frequency: 60 Hz Fundamental Current maximum
Insulation: Class F (155 deg c), but with low temperature rise
Sound Level: 2 - 25 amps <= 55 dB; 35 - 110 amps <= 60dB
MLRC - Line Reactor Closed Type
Rated Parameters: Nominal Inductance +/- 10% tolerance at rated current. 95% of nominal inductance at 150% rated current
Operating Frequency: 60 Hz Fundamental Current maximum
Insulation: Class F (155 deg c), but with low temperature rise
Sound Level: 2 - 25 amps <= 55 dB; 35 - 110 amps <= 60dB
Rated Parameters: Nominal Inductance +/- 10% tolerance at rated current. 95% of nominal inductance at 150% rated current
Operating Frequency: 60 Hz Fundamental Current maximum
Insulation: Class F (155 deg c), but with low temperature rise
Sound Level: 2 - 25 amps <= 55 dB; 35 - 110 amps <= 60dB
MET - Compact Solid State Electronic Transformers
Electronic Transformer for halogen lamps
**Quantity discounts available**
The MET series provides control of low voltage sources with a standard 120 volts dimmer or switch. Compatible with most incandescent and electronic type dimmers, units have complete zero to full power gradient capacity. Significant size/weight reductions open new design and flexibility.
For use in store display counters and gas fireplace enhancement.
Fuse Protected Electronic Transformer
Model: MET-60
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 60 Watts max. / 10 Watts min.
Size: 2.75"(60mm) x 1.44"(36mm) x 1.13"(29mm)
Thermal Cut Off Protected Transformer
Model: MET-75-1
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 80 Watts max. / 10 Watts min.
Size: 3.56"(90mm) x 1.25"(32mm) x 0.97"(25mm)
Thermal Cut Off Protected Transformer
Model: ET-150-12-1
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 150 Watts max. / 10 Watts min.
Size: 4.03"(103mm) x 1.41"(36mm) x 1.06"(27mm)
Electronic Transformer for halogen lamps
**Quantity discounts available**
The MET series provides control of low voltage sources with a standard 120 volts dimmer or switch. Compatible with most incandescent and electronic type dimmers, units have complete zero to full power gradient capacity. Significant size/weight reductions open new design and flexibility.
For use in store display counters and gas fireplace enhancement.
Fuse Protected Electronic Transformer
Model: MET-60
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 60 Watts max. / 10 Watts min.
Size: 2.75"(60mm) x 1.44"(36mm) x 1.13"(29mm)
Thermal Cut Off Protected Transformer
Model: MET-75-1
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 80 Watts max. / 10 Watts min.
Size: 3.56"(90mm) x 1.25"(32mm) x 0.97"(25mm)
Thermal Cut Off Protected Transformer
Model: ET-150-12-1
Class 2 Transformer
Input: 120V / Output: 11.5v
Operating Frequency: 60 Hz
Load: 150 Watts max. / 10 Watts min.
Size: 4.03"(103mm) x 1.41"(36mm) x 1.06"(27mm)
MAT - Three Phase Auto Wound
For use with motor and other inductive loads. Both input and output voltages are tapped from a common winding rather than seperate coils as in double-wound (isolation transformers). Not recommended for use with electronic controls, DC equipment or computer applications.
For use with motor and other inductive loads. Both input and output voltages are tapped from a common winding rather than seperate coils as in double-wound (isolation transformers). Not recommended for use with electronic controls, DC equipment or computer applications.
MATS - Single Phase Auto Wound
For use with motor and other inductive loads. Both input and output voltages are tapped from a common winding rather than seperate coils as in double-wound (isolation transformers). Not recommended for use with electronic controls, DC equipment or computer applications.
For use with motor and other inductive loads. Both input and output voltages are tapped from a common winding rather than seperate coils as in double-wound (isolation transformers). Not recommended for use with electronic controls, DC equipment or computer applications.
Custom Distribution Transformers
Don't see what you're looking for?
Marcus can build what you need, usually within 7 days.
Contact us for for more information.
Don't see what you're looking for?
Marcus can build what you need, usually within 7 days.
Contact us for for more information.
Custom Industrial Control Transformers
Don't see what you're looking for?
Marcus can build what you need, usually within 7 days.
Contact us for for more information.
Don't see what you're looking for?
Marcus can build what you need, usually within 7 days.
Contact us for for more information.
EPC-Euro 50/60HZ Control Multiple Tap Open Type
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db
RET-MAT - Three Phase Auto Wound Epoxy Encapsulate
Totally-Enclosed in epoxy resin for installation in areas with hazardous gases, dust and moisture. Designed for use in class 1, division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
Totally-Enclosed in epoxy resin for installation in areas with hazardous gases, dust and moisture. Designed for use in class 1, division 2 group A-D locations with a temperature classification of T3C, T4 and T5. Available with 4X stainless steel enclosures.
EPO-Euro 50/60HZ Control Mulitiple Tap Closed Type
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db
Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: Class F (155 deg c) (Type TPO 100 deg c)
Sound level: Less than 40 db