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Page <1> V1.113/06/14
Toroidal Transformers
General Purpose
Termination:
All leads Tri-Rated UL1015 style cable rated 600V /105°C VW-1
Primary leads double insulated with PVC sleeving for a minimum of 20mm.
Lead lengths ± 5mm approx. All leads ends tinned to 6mm
Pri/Sec leads O°
MCTA Range General Purpose Toroidal Transformers
Primary:
Dual primary winding for connection in series or parallel only
Series Input Voltage Secondary Power
MCTA015 Series
115 or 230V ±10% 50/60Hz
2 × 7.5VA
MCTA030 Series 2 × 15VA
MCTA050 Series 2 × 25VA
MCTA060 Series 2 × 30VA
MCTA080 Series 2 × 40VA
MCTA100 Series 2 × 50VA
MCTA1000 Series 2 × 500VA
MCTA120 Series 2 × 60VA
MCTA160 Series 2 × 80VA
MCTA225 Series 2 × 112.5VA
MCTA250 Series 2 × 125VA
MCTA300 Series 2 × 150VA
MCTA500 Series 2 × 250VA
MCTA625 Series 2 × 312.5VA
MCTA800 Series 2 × 400VA
PRIMARY SECONDARY
Brn 150mm • • Red 150mm
115 V o o Sec V
S1
Vio 150mm Blk 150mm
0 V o o 0 V
Gry 150mm • • Yel 150mm
115 V o o Sec V
S2
Blu 150mm Ora 150mm
0 V o o 0 V
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Page <2> V1.113/06/14
Toroidal Transformers
General Purpose
Series Iron Loss Copper Loss Efciency Temperature Rise Ambient Rated
MCTA015 Series 0.25 Watts Approx. 2.5 Watts Approx. 84% Typical 27°C Approx.
40°C
MCTA030 Series 0.37 Watts Approx. 4.9 Watts Approx. 85% Typical 42°C Approx.
MCTA050 Series 0.46 Watts Approx. 7.3 Watts Approx. 87% Typical 50°C Approx.
MCTA060 Series 0.57 Watts Approx. 7.9 Watts Approx. 88% Typical 47°C Approx.
MCTA080 Series 0.58 Watts Approx. 9.5 Watts Approx. 89% Typical 52°C Approx.
MCTA100 Series 0.85 Watts Approx. 10.3 Watts Approx. 90% Typical
MCTA1000 Series 4.49 Watts Approx. 39.1 Watts Approx. 96% Typical 60°C Approx.
MCTA120 Series 0.98 Watts Approx. 11.4 Watts Approx. 91% Typical 54°C Approx.
MCTA160 Series 1.12 Watts Approx. 13.9 Watts Approx.
MCTA225 Series 1.49 Watts Approx. 16.9 Watts Approx. 92% Typical 56°C Approx.
MCTA250 Series 1.62 Watts Approx. 17.4 Watts Approx. 93% Typical 55°C Approx.
MCTA300 Series 1.8 Watts Approx. 19.8 Watts Approx. 56°C Approx.
MCTA500 Series 2.76 Watts Approx. 24.4 Watts Approx.
95% Typical
53°C Approx.
MCTA625 Series 3.17 Watts Approx. 29.4 Watts Approx. 59°C Approx.
MCTA800 Series 4.16 Watts Approx. 35.3 Watts Approx.
Series Diameter Height Weight
MCTA015 Series 64.5mm allow extra 5mm 30.5mm over leadout area 0.33kg
MCTA030 Series 73mm allow extra 5mm 31mm over leadout area 0.48kg
MCTA050 Series 81mm allow extra 5mm 34.5mm over leadout area 0.65kg
MCTA060 Series 91.5mm allow extra 5mm 39mm over leadout area 0.78kg
MCTA080 Series 87.5mm allow extra 5mm 39mm over leadout area 0.96kg
MCTA100 Series 91mm allow extra 5mm 46mm over leadout area 1.13kg
MCTA1000 Series 167mm allow extra 5mm 70.5mm over leadout area 7.48kg
MCTA120 Series 95mm allow extra 5mm 47mm over leadout area 1.32kg
MCTA160 Series 105mm allow extra 5mm 47mm over leadout area 1.64kg
MCTA225 Series 110.5mm allow extra 5mm 51mm over leadout area 2.2kg
MCTA250 Series 119.5mm allow extra 5mm 53.5mm over leadout area 2.38kg
MCTA300 Series 125.5mm allow extra 5mm 54mm over leadout area 2.83kg
MCTA500 Series 139mm allow extra 5mm 59mm over leadout area 4.3kg
MCTA625 Series 139mm allow extra 5mm 71mm over leadout area 5.2kg
MCTA800 Series 163mm allow extra 5mm 59mm over leadout area 6.34kg
Losses
Approx. Dimensions/weight (mounting excluded)
Temperature Class
Winding wire : Class H (180ºC)
Insulation system : Class B (130ºC)
Leadout insulation : Class A (105ºC)
Overall : Class A (105ºC)
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Page <3> V1.113/06/14
Toroidal Transformers
General Purpose
MCTA015 Series
MCTA030 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 15VA, 2 × 6V 6 1.25 6.9
22AWG
0.46 MCTA015/06
Transformer, 15VA, 2 × 9V 9 0.83 10.4 1.08 MCTA015/09
Transformer, 15VA, 2 × 12V 12 0.63 13.9 1.76 MCTA015/12
Transformer, 15VA, 2 × 15V 15 0.5 17.3 2.78 MCTA015/15
Transformer, 15VA, 2 × 18V 18 0.42 20.9 4.21 MCTA015/18
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 30VA, 2 × 6V 6 2.5 6.9
22AWG
0.21 MCTA030/06
Transformer, 30VA, 2 × 9V 9 1.67 10.3 0.44 MCTA030/09
Transformer, 30VA, 2 × 12V 12 1.25 13.9 0.9 MCTA030/12
Transformer, 30VA, 2 × 15V 15 1 17.4 1.44 MCTA030/15
Transformer, 30VA, 2 × 18V 18 0.83 20.9 2.13 MCTA030/18
Transformer, 30VA, 2 × 25V 25 0.6 28.8 3.74 MCTA030/25
Supplied with:
1 × 50mm Dished Mounting Plate
2 × 50mm Neoprene Mounting Pads
1 × M5 × 40mm Screw, Nut & Washer
Supplied with:
1 × 50mm Dished Mounting Plate
2 × 50mm Neoprene Mounting Pads
1 × M5 × 40mm Screw, Nut & Washer
DC Resistance : 2 × 79.1Ω ±15% @ 20°C
Magnetising Current : 2.5mA approx. @ 230V 50Hz (5mA approx. @115V 50Hz)
DC Resistance : 2 × 42Ω ±15% @ 20°C
Magnetising Current : 3.5mA approx. @ 230V 50Hz (7mA approx. @115V 50Hz)
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Page <4> V1.113/06/14
Toroidal Transformers
General Purpose
MCTA050 Series
MCTA060 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 50VA, 2 × 6V 6 4.17 6.8 20AWG 0.11 MCTA050/06
Transformer, 50VA, 2 × 9V 9 2.78 10.2 0.23 MCTA050/09
Transformer, 50VA, 2 × 12V 12 2.08 13.6
22AWG
0.44 MCTA050/12
Transformer, 50VA, 2 × 15V 15 1.67 17 0.69 MCTA050/15
Transformer, 50VA, 2 × 18V 18 0.42 21.4 5.4 MCTA050/18
Transformer, 50VA, 2 × 25V 25 1 28.4 1.83 MCTA050/25
Transformer, 50VA, 2 × 55V 55 0.45 62.3 8.93 MCTA050/55
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 60VA, 2 × 9V 9 3.33 10.1 20AWG 0.19 MCTA060/09
Transformer, 60VA, 2 × 12V 12 2.5 13.5
22AWG
0.36 MCTA060/12
Transformer, 60VA, 2 × 15V 15 2 16.9 0.51 MCTA060/15
Transformer, 60VA, 2 × 18V 18 1.67 20.2 0.77 MCTA060/18
Transformer, 60VA, 2 × 25V 25 1.2 28 1.36 MCTA060/25
Supplied with:
1 × 50mm Dished Mounting Plate
2 × 50mm Neoprene Mounting Pads
1 × M5 × 40mm Screw, Nut & Washer
Supplied with:
1 × 70mm Dished Mounting Plate
2 × 70mm Neoprene Mounting Pads
1 × M6 × 50mm Screw, Nut & Washer
DC Resistance : 2 × 25.5Ω ±15% @ 20°C
Magnetising Current : 4.5mA approx. @ 230V 50Hz (9mA approx. @115V 50Hz)
DC Resistance : 2 × 19Ω ±15% @ 20°C
Magnetising Current : 5.5mA approx. @ 230V 50Hz (11mA approx. @115V 50Hz)
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Page <5> V1.113/06/14
Toroidal Transformers
General Purpose
Supplied with:
1 × 70mm Dished Mounting Plate
2 × 70mm Neoprene Mounting Pads
1 × M6 × 50mm Screw, Nut & Washer
Supplied with:
1 × 70mm Dished Mounting Plate
2 × 70mm Neoprene Mounting Pads
1 × M6 × 50mm Screw, Nut & Washer
DC Resistance : 2 × 13.5Ω ±15% @ 20°C
Magnetising Current : 6.5mA approx. @ 230V 50Hz (13mA approx. @115V 50Hz)
DC Resistance : 2 × 9.9Ω ±15% @ 20°C
Magnetising Current : 7.5mA approx. @ 230V 50Hz (15mA approx. @115V 50Hz)
MCTA080 Series
MCTA100 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 80VA, 2 × 9V 9 4.44 9 20 AWG 0.12 MCTA080/09
Transformer, 80VA, 2 × 12V 12 3.33 12 0.23 MCTA080/12
Transformer, 80VA, 2 × 15V 15 2.67 15
22 AWG
0.35 MCTA080/15
Transformer, 80VA, 2 × 18V 18 2.22 18 0.53 MCTA080/18
Transformer, 80VA, 2 × 25V 25 1.6 27.7 0.93 MCTA080/25
Transformer, 80VA, 2 × 55V 55 0.73 60.7 4.15 MCTA080/55
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 100VA, 2 × 12V 12 4.17 13.1
20AWG
0.15 MCTA100/12
Transformer, 100VA, 2 × 15V 15 3.33 16.3 0.23 MCTA100/15
Transformer, 100VA, 2 × 18V 18 2.78 19.7 0.35 MCTA100/18
Transformer, 100VA, 2 × 25V 25 2 27.4 0.68 MCTA100/25
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Page <6> V1.113/06/14
Toroidal Transformers
General Purpose
Supplied with:
1 × 145mm Dished Mounting Plate
2 × 148mm Neoprene Mounting Pads
1 × M8 × 80mm Screw, Nut & Washer
Supplied with:
1 × 70mm Dished Mounting Plate
2 × 70mm Neoprene Mounting Pads
1 × M6 × 50mm Screw, Nut & Washer
DC Resistance : 2 × 0.39Ω ±15% @ 20°C
Magnetising Current : 47mA approx. @ 230V 50Hz (94mA approx. @115V 50Hz)
DC Resistance : 2 × 7.3Ω ±15% @ 20°C
Magnetising Current : 9mA approx. @ 230V 50Hz (18mA approx. @115V 50Hz)
MCTA1000 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 1,000VA, 2 × 40V 40 12.5 41.5 14AWG 0.06 MCTA1000/40
Transformer, 1,000VA, 2 × 50V 50 10 52 16AWG 0.1 MCTA1000/50
Transformer, 1,000VA, 2 × 55V 55 9.09 56.9 0.14 MCTA1000/55
MCTA120 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 120VA, 2 × 12V 12 5 13.2 18AWG 0.12 MCTA120/12
Transformer, 120VA, 2 × 15V 15 4 16.4
20AWG
0.19 MCTA120/15
Transformer, 120VA, 2 × 18V 18 3.33 19.6 0.29 MCTA120/18
Transformer, 120VA, 2 × 25V 25 2.4 27.3 0.55 MCTA120/25
Transformer, 120VA, 2 × 55V 55 1.09 59.5 2.18 MCTA120/55
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Toroidal Transformers
General Purpose
Supplied with:
1 × 90mm Dished Mounting Plate
2 × 90mm Neoprene Mounting Pads
1 × M6 × 60mm Screw, Nut & Washer
Supplied with:
1 × 90mm Dished Mounting Plate
2 × 90mm Neoprene Mounting Pads
1 × M6 × 60mm Screw, Nut & Washer
DC Resistance : 2 × 5.5Ω ±15% @ 20°C
Magnetising Current : 11mA approx. @ 230V 50Hz (22mA approx. @115V 50Hz)
DC Resistance : 2 × 3.2Ω ±15% @ 20°C
Magnetising Current : 14.5mA approx. @ 230V 50Hz (29mA approx. @115V 50Hz)
MCTA160 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 160VA, 2 × 12V 12 6.67 13 18AWG 0.08 MCTA160/12
Transformer, 160VA, 2 × 15V 15 5.33 16.4 0.13 MCTA160/15
Transformer, 160VA, 2 × 18V 18 4.44 19.6
20AWG
0.17 MCTA160/18
Transformer, 160VA, 2 × 25V 25 3.2 27 0.33 MCTA160/25
Transformer, 160VA, 2 × 30V 30 2.67 32.5 0.5 MCTA160/30
Transformer, 160VA, 2 × 55V 55 1.45 59.5 1.59 MCTA160/55
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 225VA, 2 × 12V 12 9.38 12.7 16AWG 0.05 MCTA225/12
Transformer, 225VA, 2 × 15V 15 7.5 16.1 0.08 MCTA225/15
Transformer, 225VA, 2 × 18V 18 6.25 19.2 18AWG 0.12 MCTA225/18
Transformer, 225VA, 2 × 25V 25 4.5 26.7 0.21 MCTA225/25
Transformer, 225VA, 2 × 30V 30 3.75 32.2 20AWG 0.32 MCTA225/30
Transformer, 225VA, 2 × 55V 55 2.05 58.7 1 MCTA225/55
MCTA225 Series
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Page <8> V1.113/06/14
Toroidal Transformers
General Purpose
Supplied with:
1 × 90mm Dished Mounting Plate
2 × 90mm Neoprene Mounting Pads
1 × M6 × 60mm Screw, Nut & Washer
Supplied with:
1 × 90mm Dished Mounting Plate
2 × 90mm Neoprene Mounting Pads
1 × M6 × 60mm Screw, Nut & Washer
DC Resistance : 2 × 3.05Ω ±15% @ 20°C
Magnetising Current : 17mA approx. @ 230V 50Hz (34mA approx. @115V 50Hz)
DC Resistance : 2 × 2.13Ω ±15% @ 20°C
Magnetising Current : 18mA approx. @ 230V 50Hz (36mA approx. @115V 50Hz)
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 250VA, 2 × 12V 12 10.42 12.8
16AWG
0.04 MCTA250/12
Transformer, 250VA, 2 × 18V 18 6.94 19.2 0.09 MCTA250/18
Transformer, 250VA, 2 × 25V 25 5 26.7 0.16 MCTA250/25
Transformer, 250VA, 2 × 30V 30 4.17 31.9
20AWG
0.24 MCTA250/30
Transformer, 250VA, 2 × 35V 35 3.57 37.2 0.32 MCTA250/35
Transformer, 250VA, 2 × 40V 40 3.13 42.5 0.4 MCTA250/40
Transformer, 250VA, 2 × 45V 45 2.78 48.1 0.51 MCTA250/45
Transformer, 250VA, 2 × 50V 50 2.5 53.3 0.63 MCTA250/50
MCTA250 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 300VA, 2 × 25V 25 6 26.6 18AWG 0.14 MCTA300/25
Transformer, 300VA, 2 × 30V 30 5 31.9
20AWG
0.19 MCTA300/30
Transformer, 300VA, 2 × 35V 35 4.29 37.1 0.28 MCTA300/35
Transformer, 300VA, 2 × 55V 55 2.73 58.5 0.7 MCTA300/55
MCTA300 Series
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Page <9> V1.113/06/14
Toroidal Transformers
General Purpose
Supplied with:
1 × 112mm Dished Mounting Plate
2 × 110mm Neoprene Mounting Pads
1 × M8 × 75mm Screw, Nut & Washer
Supplied with:
1 × 112mm Dished Mounting Plate
2 × 110mm Neoprene Mounting Pads
1 × M8 × 80mm Screw, Nut & Washer
DC Resistance : 2 × 1.12Ω ±15% @ 20°C
Magnetising Current : 28mA approx. @ 230V 50Hz (56mA approx. @115V 50Hz)
DC Resistance : 2 × 0.79Ω ±15% @ 20°C
Magnetising Current : 33mA approx. @ 230V 50Hz (66mA approx. @115V 50Hz)
MCTA625 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 500VA, 2 × 25V 25 10 26.3 16AWG 0.06 MCTA500/25
Transformer, 500VA, 2 × 30V 30 8.33 31.4 0.09 MCTA500/30
Transformer, 500VA, 2 × 35V 35 7.14 36.6
18AWG
0.12 MCTA500/35
Transformer, 500VA, 2 × 45V 45 5.56 47 0.19 MCTA500/45
Transformer, 500VA, 2 × 50V 50 5 52.1 0.24 MCTA500/50
Transformer, 500VA, 2 × 55V 55 4.55 57.7 0.3 MCTA500/55
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 625VA, 2 × 40V 40 7.81 41.8 16AWG 0.12 MCTA625/40
MCTA500 Series
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Page <10> V1.113/06/14
Toroidal Transformers
General Purpose
Important Notice : This data sheet and its contents (the “Information”) belong to the members of the Premier Farnell group of companies (the “Group”) or are licensed to it. No licence is granted
for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change
without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any
error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any
assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the
Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence.
Multicomp is the registered trademark of the Group. © Premier Farnell plc 2012.
Standards
Designed and manufactured in accordance with : EN61558-1 / EN61558-1/A1 / EN61558-2-4 or EN61558-2-6
UL recognised under family approval E115159 to UL1411, UL60601-1, UL195059
Supplied with:
1 × 145mm Dished Mounting Plate
2 × 148mm Neoprene Mounting Pads
1 × M8 × 70mm Screw, Nut & Washer
DC Resistance : 2 × 0.56Ω ±15% @ 20°C
Magnetising Current : 43mA approx. @ 230V 50Hz (86mA approx. @115V 50Hz)
MCTA800 Series
Descriptions On Load
Sec Voltage
Rated
Amps
per Sec (A)
Off Load
Sec Voltage
Sec Flex
Gauge
Sec Ω
@ 20°C Part Number
Transformer, 800VA, 2 × 55V 55 7.27 57.5 18AWG 0.17 MCTA800/55
