Datasheet
–51–
UI 48
Flat-type transformersOutput Capacity: 40.0 VA
• Capacity up to 60.0 VA
• Temperature class ta 70 °C/B, non short-circuit-proof
• Test certification to ENEC 05-, KEMA KEUR-,
CSA- and UL-regulations
• Excellent temperature fluctuation resistance properties
• Vacuum-encapsulated, bobbin type with dual chamber windings
• High electrical safety and long service-life features
• High voltage resistance
• Self-extinguishing cast housing and sealing material
• Item quality certification
Secondary protection by means of external transformer
heat coils to IEC 127 standards.
Parallel to the cataloged UI 48 series transformers, HAHN
also produces other variants, e.g. with integrated thermo fuse
or thermo switch.
52.5
60
83.7
h
5
5
75
70.6
7
ø 3.3
6.7
1
2
3
456 7
910
8
11 12
24
23
22
2120 19 18
16 15
17
14
13
BV UI 481 .... / 17.0 mm 40.0 VA 38.7 mm 0.780 kg 10 pieces
BV UI 482 .... / 26.0 mm 60.0 VA 47.9 mm 1.100 kg 10 pieces
Frame size/Core height Output ta 70 °C/B Size (h) Weight Packaging unit
– Capacity: 40 VA/60 VA
– ta 70 °C/B as per VDE 0570/
EN 61558 regulations/standard
– Circuit for 115 V
Bridge: 1 to 9 and 4 to 12
– Circuit for 230 V
Bridge: 4 to 9
– Secondary double current
Bridge: 17 to 20
– Secondary double voltage
Bridge: 14 to 20 and 17 to 23
– Test voltage: 6000 V
Dimensions without tolerances ± 0.3 mm, Soldering post 1.1 x 0.5,
Rights to make alterations and improvements hereby reserved
View looking onto pins
sec I: 14 – 17
sec II: 20 – 23
prim I: 1 – 4
prim II: 9 – 12
BV UI 481 0001 40.0 1 2 x 115 1 – 4/9 – 12 2 x 6 3333 14 – 17/20 – 23 2 x 7.3
BV UI 481 0002 40.0 1 2 x 115 1 – 4/9 – 12 2 x 9 2222 14 – 17/20 – 23 2 x 10.8
BV UI 481 0003 40.0 1 2 x 115 1 – 4/9 – 12 2 x 12 1666 14 – 17/20 – 23 2 x 14.3
BV UI 481 0004 40.0 1 2 x 115 1 – 4/9 – 12 2 x 15 1333 14 – 17/20 – 23 2 x 17.7
BV UI 481 0005 40.0 1 2 x 115 1 – 4/9 – 12 2 x 18 1111 14 – 17/20 – 23 2 x 21.7
Total Frame Primary Connecting Secondary Current Connecting No-load
Order No. output VA Size voltage V pins prim. voltage V sec. mA pins sec. voltage V