Acme Electric CONTROL TRANSFORMERS Catalog Page
INDUSTRIAL CONTROL TRANSFORMERS
Industrial control transformers are used to reduce supply voltages to 240V or lower for the operation of electromagnetic devices such
as contactors, solenoids, relays, and timers. They are especially designed to accommodate the momentary current inrush caused
when electromagnetic components are energized without sacrificing secondary voltage stability beyond practical limits.
Acme Industrial Control Transformers are dry-type, step-down transformers with the secondary control circuit isolated from the primary
line circuit to assure maximum safety.
Voltage regulation of Acme Industrial Control Transformers exceeds standards recommended by the National Electrical Manufacturers
Association. Secondary circuit voltage drop between no-load and momentary overload remains exceptionally low. This excellent
secondary circuit voltage regulation assures reliable operation of electromagnetic components and may permit the use of a smaller
and less expensive industrial control transformer.
TB SERIES INDUSTRIAL CONTROL TRANSFORMER
Acme’s TB Series Industrial Control Transformers are especially designed to accommodate the momentary current inrush caused when
electromagnetic components are energized... without sacrificing secondary voltage stability beyond practical limits.The transformer’s
windings and internal terminations are sealed within an epoxy encapsulant encased in a durable thermoplastic end cap, protecting
them from potentially damaging moisture, dirt and other ambient contaminants. Acme’s TB Series transformers are dry-type, step-down
transformers with the secondary control circuit isolated from the primary line circuit to assure maximum safety.
Voltage regulation of Acme’s TB Series transformers exceeds standards recommended by the National Electrical Manufacturers
Association. Secondary circuit voltage drop between no-load and momentary overload remains exceptionally low. This excellent
secondary circuit voltage regulation assures reliable operation of electromagnetic components and may permit the use of a smaller
and less expensive industrial control transformer.
Features
n
50 –5000 VA, 50/60 Hz.
n
Epoxy encapsulated design protects core & coil assembly from potentially damaging contaminants
n
Constructed with high quality silicon steel lamination to minimize core losses and increase efficiency
n
Integrally molded terminal blocks with isolation barriers to prevent arc over
n
Primary fuse blocks kits available and easily adaptable
n
Secondary Fuse Clips factory installed, where applicable
n
Series-parallel connecting links save wiring and labor costs
n
Terminal blocks allow full access for ring terminals for easy installation even with solid strand conductors
n
Copper windings on all groups
n
Heavy gauge steel mounting plate adapts to various mounting dimensions
n
Voltage regulation exceeds NEMA requirements
n
UL Listed and CSA Certified or cUL
n
Meets or exceeds UL, CSA, NEMA, ANSI and OSHA Standards
n
Twenty year limited warranty
n
Assembled in the USA of imported and domestic components
Applications
n
Motor Starters
n
Contactors
n
Solenoids
n
Timer Circuits
n
Relays
n
Control Panels
n
Robotics
2
A
S
S
E
M
B
L
E
D
I
N
TB SERIES
Group A
120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 1Ø 50/60 Hz
Dimensions (inches)(cm)
VA
Rating
50
75
100
150
200
250
300
350
500
750
Catalog
Number
TB50A001
TB75A001
TB100A001
TB150B001
TB200B001
TB250B001
TB300B001
TB350B001
TB500B001
TB750B001
A B C D E
①
①
①
①
①
①
②
②
②
②
3.78 (9.60) 3 (7.62) 3.14 (7.98) 1.96 (4.98) 2.5 (6.35) 2.7 (1.22) 1
4 (10.16) 3 (7.62) 4.52 (11.47) 2.42 (6.15) 2.5 (6.35) 3.4 (1.54) 1
4 (10.16) 3.38 (8.59) 4.84 (12.28) 2.42 (6.15) 2.81 (7.14) 4.4 (2.00) 1
4.03 (10.24) 3.75 (9.53) 3.77 (9.58) 2.82 (7.16) 3.13 (7.95) 6 (2.72) 1
4.38 (11.13) 4.5 (11.43) 5.78 (14.67) 2.42 (6.15) 3.75 (9.53) 8.9 (4.04) 1
4.38 (11.13) 4.5 (11.43) 5.78 (14.67) 2.82 (7.16) 3.75 (9.53) 9.3 (4.22) 1
4.75 (12.07) 4.5 (11.43) 3.98 (10.11) 3.18 (8.08) 3.75 (9.53) 11 (4.99) 1
5 (12.7) 4.5 (11.43) 3.98 (10.11) 3.43 (8.71) 3.75 (9.53) 11.3 (5.13) 1
5.45 (13.84) 5.25 (13.34) 4.64 (11.79) 3.87 (9.83) 4.38 (11.1 18 (8.16) 1
6.95 (17.65) 5.25 (13.34) 4.64 (11.79) 5.37 (13.64) 4.38 (11.13) 26.5 (12.02) 1
Group B
120 X 240 PRIMARY VOLTS — 120 X 240 SECONDARY VOLTS — 1Ø 50/60 Hz
Dimensions (inches)(cm)
VA
Rating
50
100
150
250
350
500
750
Catalog
Number
TB50A003
TB100A003
TB150B003
TB250B003
TB350B003
TB500B003
TB750B003
A B C D E
①
①
①
①
①
①
①
3.78 (9.60) 3 (7.62) 2.72 (6.91) 1.96 (4.98) 2.5 (6.35) 2.7 (1.22) 3
4 (10.16) 3.38 (8.59) 3.03 (7.70) 2.42 (6.15) 2.81 (7.14) 4.4 (2.00) 3
4.03 (10.24) 3.75 (9.53) 3.35 (8.51) 2.82 (7.16) 3.13 (7.95) 6 (2.72) 3
4.38 (11.13) 4.5 (11.43) 3.97 (10.08) 2.82 (7.16) 3.75 (9.53) 9.3 (4.22) 3
4.75 (12.07) 4.5 (11.43) 3.97 (10.08) 3.74 (9.50) 3.75 (9.53) 11.6 (5.26) 3
6.11 (15.52) 5.25 (13.34) 4.63 (11.76) 3.87 (9.83) 4.38 (11.13) 17.4 (7.89) 3
7.61 (19.33) 5.25 (13.34) 4.63 (11.76) 5.37 (13.64) 4.38 (11.13) 26.5 (12.02) 3
Weight
(lb)(kg)
Weight
(lb)(kg)
Wiring
Diag.
Wiring
Diag.
Group C
200, 208/220, 230, 240/440, 460, 480 PRIMARY VOLTS — 23, 24, 25/110, 115, 120 SECONDARY VOLTS — 1Ø 50/60 Hz
Dimensions (inches)(cm)
VA
Rating
50
75
100
150
200
250
300
350
500
750
1000
*
Secondary Fuse Clips Factory Installed
TB50A004C*①
TB75A004C*①
TB100A004C*①
TB150B004C*①
TB200B004C*①
TB250B004C*①
TB300B004C*①
TB350B004C*①
TB500B004C*①
TB750B004C*①
TB1000B004C*②
Catalog
Number
A B C D E
4.53 (11.51) 3 (7.62) 3.14 (7.98) 2.82 (7.16) 2.5 (6.35) 4.3 (1.95) 4
4.5 (11.43) 3.38 (8.59) 3.46 (8.79) 2.82 (7.16) 2.81 (7.14) 5.5 (2.49) 4
4.53 (11.51) 3.75 (9.53) 3.78 (9.60) 2.99 (7.59) 3.13 (7.95) 6.5 (2.95) 4
5.03 (12.78) 3.75 (9.53) 3.78 (9.60) 3.18 (8.08) 3.13 (7.95) 9.5 (4.31) 4
4.38 (11.13) 4.5 (11.43) 4.4 (11.18) 2.99 (7.59) 3.75 (9.53) 9.8 (4.45) 4
4.75 (12.07) 4.5 (11.43) 4.4 (11.18) 3.74 (9.50) 3.75 (9.53) 11.3 (5.13) 4
6.11 (15.52) 5.25 (13.34) 5.14 (13.06) 3.87 (9.83) 4.38 (11.13) 14.1 (6.40) 4
6.11 (15.52) 5.25 (13.34) 5.14 (13.06) 3.87 (9.83) 4.38 (11.13) 16.4 (7.44) 4
7.11 (18.06) 5.25 (13.34) 5.14 (13.06) 5.37 (13.64) 4.38 (11.13) 23.1 (10.48) 4
7.11 (18.06) 6.75 (17.15) 6.3 (16.00) 4.97 (12.62) 6.13 (15.57) 38.6 (17.51) 4
8.13 (20.65) 6.75 (17.15) 5.73 (14.55) 6.13 (15.57) 6.13 (15.57) 48.4 (21.95) 4
Weight
(lb)(kg)
①
Wiring
Diag.
②
3
Group D
208/230/460 PRIMARY VOLTS — 115 SECONDARY VOLTS — 1Ø 50/60 Hz
Dimensions (inches)(cm)
VA
Rating
50
75
100
150
200
250
300
350
500
750
1000
1500
2000
3000
5000
*
Secondary Fuse Clips Factory Installed
Catalog
Number
TB50A005C*①
TB75A005C*①
TB100A005C*①
TB150B005C*①
TB200B005C*①
TB250B005C*①
TB300B005C*①
TB350B005C*①
TB500B005C*①
TB750B005C*①
TB1000B005C*②
TB1500B005C*②
TB2000F005C*②
TB3000F005*②
TB5000F005②
A B C D E
3.78 (9.60) 3 (7.62) 3.14 (7.98) 2.21 (5.61) 2.5 (6.35) 2.7 (1.22) 5
4 (10.16) 3.38 (8.59) 3.46 (8.79) 2.42 (6.15) 2.81 (7.14) 3.4 (1.54) 5
4 (10.16) 3.38 (8.59) 3.46 (8.79) 2.42 (6.15) 2.81 (7.14) 4.4 (2.00) 5
4.03 (10.24) 3.75 (9.53) 3.77 (9.58) 2.82 (7.16) 3.13 (7.95) 5.6 (2.54) 5
4.38 (11.13) 4.5 (11.43) 4.4 (11.18) 2.82 (7.16) 3.75 (9.53) 9.1 (4.13) 5
4.75 (12.07) 4.5 (11.43) 4.4 (11.18) 3.18 (8.08) 3.75 (9.53) 10.8 (4.90) 5
4.75 (12.07) 4.5 (11.43) 4.4 (11.18) 3.74 (9.50) 3.75 (9.53) 11.2 (5.08) 5
5.75 (14.61) 4.5 (11.43) 4.4 (11.18) 4.72 (11.99) 3.75 (9.53) 12.4 (5.62) 5
6.11 (15.52) 5.25 (13.34) 5.14 (13.06) 4.37 (11.10) 4.38 (11.13) 17.4 (7.89) 5
7.61 (19.33) 5.25 (13.34) 5.14 (13.06) 5.87 (14.91) 4.38 (11.13) 26.2 (11.88) 5
7.45 (18.92) 6.75 (17.15) 5.42 (13.77) 5.06 (12.85) 5.31 (13.49) 37 (16.78) 5
8.5 (21.59) 6.75 (17.15) 5.75 (14.61) 6.13 (15.57) 6.13 (15.57) 53.9 (24.45) 5
8.13 (20.65) 6.75 (17.15) 6.28 (15.95) 5.25 (13.34) 6.13 (15.57) 51.6 (23.41) 5
8.5 (21.59) 9 (22.86) 7.5 (19.05) 5.74 (14.58) 7.5 (19.05) 77.1 (34.97) 5
10.31 (26.19) 9 (22.86) 7.5 (19.05) 7.56 (19.20) 7.5 (19.05) 114.6 (51.98) 5
Weight
(lb)(kg)
Wiring
Diag.
Group E
208, 277 PRIMARY VOLTS — 120 SECONDARY VOLTS — 1Ø 50/60 Hz
Dimensions (inches)(cm)
VA
Rating
50
75
100
150
200
250
300
350
500
750
*
Secondary Fuse Clips Factory Installed
Catalog
Number
TB50A006C*①
TB75A006C*①
TB100A006C*①
TB150B006C*①
TB200B006C*①
TB250B006C*①
TB300B006C*①
TB350B006C*①
TB500B006C*①
TB750B006C*①
A B C D E
3.78 (9.60) 3 (7.62) 3.14 (7.98) 1.96 (4.98) 2.5 (6.35) 2.7 (1.22) 6
4 (10.16) 3 (7.62) 3.14 (7.98) 2.42 (6.15) 2.5 (6.35) 3.4 (1.54) 6
4 (10.16) 3.38 (8.59) 3.46 (8.79) 2.42 (6.15) 2.81 (7.14) 4.4 (2.00) 6
4.03 (10.24) 3.75 (9.53) 3.77 (9.58) 2.82 (7.16) 3.13 (7.95) 6 (2.72) 6
4.38 (11.13) 4.5 (11.43) 4.4 (11.18) 2.42 (6.15) 3.75 (9.53) 8.9 (4.04) 6
4.38 (11.13) 4.5 (11.43) 4.4 (11.18) 2.82 (7.16) 3.75 (9.53) 9.3 (4.22) 6
4.75 (12.07) 4.5 (11.43) 4.4 (11.18) 3.18 (8.08) 3.75 (9.53) 11 (4.99) 6
4.75 (12.07) 4.5 (11.43) 4.4 (11.18) 3.74 (9.50) 3.75 (9.53) 11.6 (5.26) 6
6.11 (15.52) 5.25 (13.34) 5.14 (13.06) 3.87 (9.83) 4.38 (11.13) 17.4 (7.89) 6
7.61 (19.33) 5.25 (13.34) 5.14 (13.06) 5.37 (13.64) 4.38 (11.13) 26.5 (12.02) 6
Weight
(lb)(kg)
Wiring
Diag.
①
②
4
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