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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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Primary Voltage Rating
Secondary Voltage Rating
Power Rating
Secondary Current Rating
Mounting Style
Primary Winding
Secondary Winding
Length
Width
Height
Series
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
60In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 12.6 V CT 6 VA 500 mA Chassis Dual Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
29In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 24 V CT 6 VA 250 mA Chassis Dual Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
71In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 28 V CT 6 VA 200 mA Chassis Dual Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
78In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 20 V CT 12 VA 600 mA Chassis Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
48In Stock
150Expected 2026/04/03
Min.: 1
Mult.: 1

115 VAC, 230 VAC 24 V CT 12 VA 500 mA Chassis Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
8In Stock
100Expected 2026/03/12
Min.: 1
Mult.: 1

115 VAC, 230 VAC 24 V CT 12 VA 500 mA Chassis Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
35In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 16 V CT 30 VA 2 A Chassis Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
34In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 36 V CT 30 VA 850 mA Chassis Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
10In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 12.6 V CT 56 VA 4 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
6In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 16 V CT 56 VA 3.5 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
61In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 24 V CT 56 VA 2.4 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
5In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 28 V CT 56 VA 2 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
28In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 36 V CT 56 VA 1.5 A Chassis Dual Primary Winding Single Secondary Winding 93.5 mm 49.2 mm 57.8 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
39In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 48 V CT 56 VA 1.2 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
31In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 10 V CT 100 VA 10 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
23In Stock
30Expected 2026/05/21
Min.: 1
Mult.: 1

115 VAC, 230 VAC 120 V CT 100 VA 850 mA Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
29In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 20 V CT 100 VA 5 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
29In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 36 V CT 100 VA 2.8 A Chassis Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
56In Stock
Min.: 1
Mult.: 1

115 VAC 10 V CT 2.4 VA 250 mA Chassis Single Primary Winding Single Secondary Winding 52.6 mm 29.6 mm 31.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
4In Stock
Min.: 1
Mult.: 1

115 VAC 48 V CT 2.4 VA 50 mA Chassis Single Primary Winding Single Secondary Winding 52.6 mm 29.6 mm 31.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
44In Stock
Min.: 1
Mult.: 1

115 VAC 120 V CT 6 VA 50 mA Chassis Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
14In Stock
Min.: 1
Mult.: 1

115 VAC 28 V CT 6 VA 200 mA Chassis Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
25In Stock
Min.: 1
Mult.: 1

115 VAC 56 V CT 6 VA 110 mA Chassis Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
5In Stock
Min.: 1
Mult.: 1

115 VAC 36 V CT 100 VA 2.8 A Chassis Single Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm 241
Bel Signal Transformer Power Transformers 50\60 Hz, Laminated Transformer
Datasheet
37In Stock
Min.: 1
Mult.: 1

115 VAC, 230 VAC 28 V CT 30 VA 1.1 A Chassis Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm 241