Two-4-One™ Power Transformers

Signal Transformer/Bel Two-4-One™ Power Transformers use split bobbin construction that provides superior isolation and low capacitive coupling. These transformers offer chassis mounting style, single or dual primary winding, and a single secondary winding.The two-4-one transformers are available in 241 series and 241-L series, where the 241-L transformers offer lead wires. Both the 241 and the 241-L series are UL recognized to UL 506/UL 5085-1, File # E63829 and CSA certified to C22.2 #66.1, File # 221070.

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Qty. RoHS ECAD Model Power Rating
Primary Voltage Rating
Secondary Voltage Rating
Mounting Style
Secondary Current Rating
Primary Winding
Secondary Winding
Length
Width
Height
Series
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
47In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 120 V CT Chassis 250 mA Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
65In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 24 V CT Chassis 1.25 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
40In Stock
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 12.6 V CT Chassis 4 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
35In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 12.6 V CT Chassis 8 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
25In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 20 V CT Chassis 5 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
27In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 48 V CT Chassis 2 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
94In Stock
Min.: 1
Mult.: 1

6 VA 115 VAC 12.6 V CT Chassis 500 mA Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
89In Stock
Min.: 1
Mult.: 1

6 VA 115 VAC 16 V CT Chassis 400 mA Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
89In Stock
Min.: 1
Mult.: 1

12 VA 115 VAC 16 V CT Chassis 800 mA Single Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
28In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC 16 V CT Chassis 6.25 A Single Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
105In Stock
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 28 V CT Chassis 420 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
42In Stock
Min.: 1
Mult.: 1

56 VA 115 VAC 16 V CT Chassis 3.5 A Single Primary Winding Single Secondary Winding 93.5 mm 49.2 mm 57.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
77In Stock
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 20 V CT Chassis 600 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
39In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 24 V CT Chassis 1.25 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
35In Stock
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 56 V CT Chassis 1 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
34In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 28 V CT Chassis 3.6 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
42In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC 10 V CT Chassis 3 A Single Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
62In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC 20 V CT Chassis 1.5 A Single Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
25In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC 10 V CT Chassis 10 A Single Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
85In Stock
100Expected 2026/08/20
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 12.6 V CT Chassis 1 A Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
47In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 12.6 V CT Chassis 2.5 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
47In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 20 V CT Chassis 1.5 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
38In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 16 V CT Chassis 6.25 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
27In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 56 V CT Chassis 1.8 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers - Industrial 50\60 Hz, Laminated Transformer
Datasheet
50In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC 10 V CT Chassis 3 A Single Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241