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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Power Transformers - Industrial

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Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 5
Datasheet
76In Stock
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 120 V CT Chassis 100 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 5 W/LEADS
Datasheet
83In Stock
100Expected 20/11/2026
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 24 V CT Chassis 500 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 5
Datasheet
6In Stock
150Expected 02/10/2026
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 24 V CT Chassis 500 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm Screw Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 6 W/LEADS
Datasheet
35In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 16 V CT Chassis 2 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 6 W/LEADS
Datasheet
41In 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 Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 6 W/LEADS
Datasheet
25In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 28 V CT Chassis 1.1 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 6 W/LEADS
Datasheet
22In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 36 V CT Chassis 850 mA Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 6
Datasheet
32In Stock
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 36 V CT Chassis 850 mA Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm Screw Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 6 W/LEADS
Datasheet
14In Stock
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 10 V CT Chassis 5 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
35In Stock
40Expected 11/12/2026
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 24 V CT Chassis 2.4 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 7
Datasheet
23In Stock
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 36 V CT Chassis 1.5 A Dual Primary Winding Single Secondary Winding 93.5 mm 49.2 mm 57.8 mm Screw Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
7In Stock
40Expected 23/10/2026
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 48 V CT Chassis 1.2 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
25In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC, 230 VAC 10 V CT Chassis 10 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 8 W/LEADS
Datasheet
28In 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 Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE 4 W/LEADS
Datasheet
5In Stock
Min.: 1
Mult.: 1

6 VA 115 VAC 48 V CT Chassis 125 mA Single Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE 8 W/LEADS
Datasheet
15In Stock
Min.: 1
Mult.: 1

100 VA 115 VAC 20 V CT Chassis 5 A Single Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 5 W/LEADS
Datasheet
22In Stock
Min.: 1
Mult.: 1

12 VA 115 VAC, 230 VAC 56 V CT Chassis 220 mA Dual Primary Winding Single Secondary Winding 71.4 mm 36.3 mm 42.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 6
Datasheet
23In 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 Screw Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER RECT PWR 24V
Datasheet
149Expected 23/10/2026
Min.: 1
Mult.: 1

2.4 VA 115 VAC 10 V CT Chassis 250 mA Single Primary Winding Single Secondary Winding 52.6 mm 29.6 mm 31.2 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 4 W/LEADS
Datasheet
100Expected 14/09/2026
Min.: 1
Mult.: 1

6 VA 115 VAC, 230 VAC 36 V CT Chassis 170 mA Dual Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRANSFORMER TWO-FOR-ONE DP 4
Datasheet
99Expected 06/10/2026
Min.: 1
Mult.: 1

6 VA 115 VAC, 230 VAC 48 V CT Chassis 125 mA Dual Primary Winding Single Secondary Winding 60.3 mm 33.3 mm 36.2 mm Screw Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 5 W/LEADS
Datasheet
100On Order
Min.: 1
Mult.: 1

30 VA 115 VAC, 230 VAC 10 V CT Chassis 3 A Dual Primary Winding Single Secondary Winding 82.6 mm 44.3 mm 49.8 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
80On Order
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 20 V CT Chassis 2.8 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
40On Order
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 16 V CT Chassis 3.5 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241
Bel Signal Transformer Power Transformers - Industrial TRAN TWO-FOR-ONE DP 7 W/LEADS
Datasheet
53Expected 27/11/2026
Min.: 1
Mult.: 1

56 VA 115 VAC, 230 VAC 28 V CT Chassis 2 A Dual Primary Winding Single Secondary Winding 102.4 mm 58.5 mm 65.5 mm Quick Connects Split Bobbin Transformer 241