DU & SU Step-Up or Step-Down Transformers

Signal Transformer / Bel DU and SU Industrial Grade Step-Up or Step-Down Transformers allow users to adapt voltages for worldwide applications. The transformers are designed to provide a multitude of step-up or step-down voltage configurations to accommodate various input voltages. The series has a power rating of 250VA to 10kVA and a 2500Vrms hipot dielectric strength. Signal Transformer / Bel DU and SU Transformers feature plated brass screw-type terminals and can be chassis or rack-mounted.

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Industrial Automation
Power Products
Power Transformers - Industrial

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Description Datasheet Availability Pricing (KRW) Filter the results in the table by unit price based on your quantity.
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Secondary Current Rating
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Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Datasheet
14In Stock
₩400,155.6
₩361,077.6
₩359,065.2
Min.: 1
Mult.: 1
500 VA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 2.3 A/4.6 A Dual Primary Winding Dual Secondary Winding 134.9 mm 134.9 mm 133.4 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Datasheet
12In Stock
₩386,240.4
₩357,396
₩349,034.4
Min.: 1
Mult.: 1
500 VA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 1.15 A/2.3 A Dual Primary Winding Dual Secondary Winding 134.9 mm 134.9 mm 133.4 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER SPLIT-TRAN DST-7
Due to size or weight of the product, your shipping charge may increase.
Datasheet
11In Stock
₩686,868
Min.: 1
Mult.: 1
1 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 4.5 A/9 A Dual Primary Winding Dual Secondary Winding 192.1 mm 158.8 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
8In Stock
₩3,282,942
Min.: 1
Mult.: 1
10 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 41 A/82 A Dual Primary Winding Dual Secondary Winding 228.6 mm 330.2 mm 203.2 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Datasheet
6In Stock
₩305,978.4
₩284,559.6
₩277,165.2
₩272,688
View
Min.: 1
Mult.: 1
250 VA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 550 mA/1.1 A Dual Primary Winding Dual Secondary Winding 134.9 mm 107.9 mm 133.4 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Datasheet
12In Stock
₩323,200.8
₩306,571.2
₩283,233.6
₩279,427.2
Min.: 1
Mult.: 1
250 VA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 1.1 A/2.2 A Dual Primary Winding Dual Secondary Winding 134.9 mm 107.9 mm 133.4 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
6In Stock
₩1,525,134
Min.: 1
Mult.: 1
5 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 11.5 A/23 A Dual Primary Winding Dual Secondary Winding 192.1 mm 273.1 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
3In Stock
₩941,662.8
Min.: 1
Mult.: 1
2 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 4.5 A/9 A Dual Primary Winding Dual Secondary Winding 192.1 mm 209.6 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
1In Stock
₩1,328,605.2
Min.: 1
Mult.: 1
3 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 14 A/28 A Dual Primary Winding Dual Secondary Winding 192.1 mm 234.9 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
1In Stock
10Expected 1/27/2027
₩1,537,926
Min.: 1
Mult.: 1
5 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 23 A/46 A Dual Primary Winding Dual Secondary Winding 192.1 mm 273.1 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial 4-40X1-3/8 SLOTTED PAN SCREW
Due to size or weight of the product, your shipping charge may increase.
Datasheet
10Expected 12/11/2026
₩675,948
Min.: 1
Mult.: 1
1 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 2.25 A/4.5 A Dual Primary Winding Dual Secondary Winding 192.1 mm 158.8 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
Non-Stocked Lead-Time 16 Weeks
₩991,458
Min.: 1
Mult.: 1
2 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 9 A/18 A Dual Primary Winding Dual Secondary Winding 192.1 mm 209.6 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO DU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
Non-Stocked Lead-Time 16 Weeks
₩3,249,807.6
Min.: 5
Mult.: 5
7.5 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/104 V/110 V/120 V/208 V/220 V/240 V Chassis 31 A/62 A Dual Primary Winding Dual Secondary Winding 228.6 mm 273.1 mm 203.2 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
Non-Stocked Lead-Time 16 Weeks
₩3,142,666.8
Min.: 5
Mult.: 5
10 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 20.5 A/41 A Dual Primary Winding Dual Secondary Winding 228.6 mm 330.2 mm 203.2 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
Non-Stocked Lead-Time 16 Weeks
₩1,239,934.8
Min.: 10
Mult.: 1
3 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 7 A/14 A Dual Primary Winding Dual Secondary Winding 192.1 mm 234.9 mm 187.3 mm Screw DU/SU
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER POWER ISO SU
Due to size or weight of the product, your shipping charge may increase.
Datasheet
Non-Stocked Lead-Time 16 Weeks
₩2,450,916
Min.: 5
Mult.: 5
7.5 kVA 104 VAC/110 VAC/120 VAC/208 VAC/220 VAC/230 VAC/240 VAC 0 V/0 V/208 V/220 V/240 V/416 V/440 V/480 V Chassis 15.5 A/31 A Dual Primary Winding Dual Secondary Winding 228.6 mm 273.1 mm 203.2 mm Screw DU/SU