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Construction T.O = open, vacuum varnished T.V = potted in a housing
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Temperature class T40/B, on request insulation class F (155°C) for type T.O
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Protective class IP00 (for mounting in an appliance)
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Phases 1
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Frequency 48 Hz up to 400 Hz, other frequencies than 50 Hz lead to another power at the same type size
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Safety standards VDE/SEV open and potted: EN 61558
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Safety standards UL/CSA on request UL/CSA materials or UL-approval
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Test voltages EN 61558-1: 2500 V pri - sec EN 61558-2--/4: 4000 V pri - sec
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Resistance to short-circuiting conditionally short circuit protected with - PTC - temperature fuse - temperature switch - mini fuse in other case no resistance to short-circuiting
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Bobbin DIN 41302, 1 or 2 chamber version Material: Polyamid 6 gf class B = 130°C with UL approval UL 94 HB Pin-grid has to be defined at the order
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Insulants Polyester class B = 130°C with UL approval UL 94 V0
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Copper wire Polyurethane mod. class F = 155°C with UL approval min. 0,04 mm, max. flat copper ca. 500 qmm
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Screening made of Cu-foil, reduces the max. power
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Transformer core lamination conform DIN 41302 M530-50A, 0,5 mm thick (1,0 W/kg losses at 1,7 T) or M111-35N, 0,35 mm thick (1,1 W/kg losses at 1,5 T)
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Mounting by plugging into the printed circuit board (Print)
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Voltages min. 0,1 V max. depends on the type size, at EI 78 and vacuum potting: 5000 V
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Tappings possible
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Current min. 0 A max. depends on the type size
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Mechanic tolerances Tolerance of print transformers from pin row to pin row +/- 0,5 mm
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Printed circuit board drills
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