STSU 100/48

Control- and isolating transformer

Version STSU 100/48

Rated input voltage 230/400 Vac Rated output voltage 2 x 24 Vac Rated power VDE (DB cos phi=1) 100 VA

Version	Rated input voltage	Rated output voltage	Rated power VDE (DB cos phi=1)
STSU 40/23	230/400 Vac	2 x 115 Vac	40 VA
STSU 40/24	230/400 Vac	2 x 12 Vac	40 VA
STSU 40/48	230/400 Vac	2 x 24 Vac	40 VA
STSU 63/23	230/400 Vac	2 x 115 Vac	63 VA
STSU 63/24	230/400 Vac	2 x 12 Vac	63 VA
STSU 63/48	230/400 Vac	2 x 24 Vac	63 VA
STSU 100/23	230/400 Vac	2 x 115 Vac	100 VA
STSU 100/24	230/400 Vac	2 x 12 Vac	100 VA
STSU 100/48	230/400 Vac	2 x 24 Vac	100 VA
STSU 160/23	230/400 Vac	2 x 115 Vac	160 VA
STSU 160/24	230/400 Vac	2 x 12 Vac	160 VA
STSU 160/48	230/400 Vac	2 x 24 Vac	160 VA
STSU 250/23	230/400 Vac	2 x 115 Vac	250 VA
STSU 250/24	230/400 Vac	2 x 12 Vac	250 VA
STSU 250/48	230/400 Vac	2 x 24 Vac	250 VA
STSU 400/23	230/400 Vac	2 x 115 Vac	400 VA
STSU 400/24	230/400 Vac	2 x 12 Vac	400 VA
STSU 400/48	230/400 Vac	2 x 24 Vac	400 VA
STSU 630/23	230/400 Vac	2 x 115 Vac	630 VA
STSU 630/24	230/400 Vac	2 x 12 Vac	630 VA
STSU 630/48	230/400 Vac	2 x 24 Vac	630 VA
STSU 1000/23	230/400 Vac	2 x 115 Vac	1,000 VA
STSU 1000/24	230/400 Vac	2 x 12 Vac	1,000 VA
STSU 1000/48	230/400 Vac	2 x 24 Vac	1,000 VA
STSU 1600/23	230/400 Vac	2 x 115 Vac	1,600 VA
STSU 2000/23	230/400 Vac	2 x 115 Vac	2,000 VA
STSU 2500/23	230/400 Vac	2 x 115 Vac	2,500 VA

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Technical Data for STSU 100/48

Input
Rated frequency	50 - 60 Hz
Rated input voltage	230/400 Vac
Tappings Input	±15 V

Output
Efficiency	84.5 %
No-load voltage (app. x factor)	1.10
Rated output voltage	2 x 24 Vac
Rated power VDE (DB cos phi=1)	100 VA
Rated power VDE (KB cos phi=0.5)	310 VA
Secondary circuit	2

Standards
Classification	Control- and isolating transformer

Approvals
Approvals	cURus

Environment
Ambient temperature max.	104.0 °F
Type of cooling	self cooling

Safety and protection
Insulation class	VDE=B, UL=class 130
Protection index	IP 00
Safety class (prepared)	I
Type	Open type
Short circuit strength	non-short-circuit proof

Terminal and mounting
Fixing method	Dual purpose foot plate also for installation on mounting rails
Fixing screws	M4
Terminals Input	Screw clamp, 4 mm²
Terminals Output	Screw clamp, 4 mm²
Connection type	Screw-type terminal, 4 mm²

Measures and weights
Width	3.31 inch
Height	3.78 inch
Depth	3.82 inch
Weight	4.63 lbs

Information for STSU series

General Data

Rated power 40 - 2,500 VA
Degree of protection IP 00
Efficiency up to 94 %
Maximum ambient temperature 104 °F / 40 °C
Insulation class B
Rated output voltage 2 x 12 - 2 x 115 Vac
Rated input voltage 230 and 400 Vac

Benefits

DIN rail clamp included 63 - 250 VA
High power density due to a compact construction design
Dual input voltage 230 and 400 Vac
Schielding winding between input and output
Reduced inrush current
Simple mounting due to robust metal footplate with oval slots
Primary side ±15 V taps for voltage adjustment
Contact protected screw connection terminals complying with UVV BGV A3
Very good corrosion protection and low noise due to BLOCK IMPEX vacuum impregnation

Standards

Control transformer
to: VDE 0570 Teil 2-2, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-2,
UL 5085-1/-2, CSA 22.2 No.66
Isolating transformer
to: VDE 0570 Teil 2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4,
UL 1561, CSA 22.2 No.66
Isolating transformer
to: VDE 0570 Part2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66

Approvals

UL 5085-1/-2, CSA 22.2 No.66

Applications

As a control transformer for the electrical isolation of the input and output sides.The construction of the transformer is designed to supply control systems according to EN 60204.
As an isolating transformer for the safe electrical isolation of the input and output sides. The transformer may be used to set up protective separation as a protective measure in accordance with VDE 0100.
As a safety transformer for the safe electrical isolation of the input and output sides. The transformer is suitable for creating SELV and PELV circuits because of the limit on the output voltage.

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