Datasheet

Single-Phase Transformers
Safety, Isolating, Control and Mains Transformers
General data
11/7
Siemens IC 10 · 2011
11
■ Technical specifications
1)
See note on Technical Information on page 11/1 -->
"Design".
2)
See note on Technical Information on page 11/1 -->
"Circuit diagrams".
3)
See note on Technical Information on page 11/1 -->
"Project Planning Aids".
For more specifications see
www.siemens.de/sirius-versorgen
--> "Technical Information"
or
www.siemens.com/industrial-controls/support
-->
"Transformers and Power Supplies" -->
"Manuals/Operating Instructions".
General data
Transformers Type 4AM 4AT
•Version EI core UI core
• Performance range (with IP00) kVA 0.025 ... 2.5 > 2.5 ... 16
• Approvals CUUS
Voltage range V ≤ 690
• Approvals for USA, Canada V ≤ 600
Rated frequency Hz 50 ... 60
Thermal class B H
• Acc. to UL/CSA CLASS 130 CLASS 180
Ambient conditions Protection against harmful ambient conditions: Complete impregnation in polyester resin
Climate-proof for installation in rooms with an external climate to DIN 50010
Rated ambient temperature
• At rated power °C 40 55
• Maximum value (after power reduction in
accordance with load characteristic
1)
)
°C 80
• Minimum value °C –25
Relative air humidity
• Mean value up to % 80
• Maximum value for 30 days/year % 95
• At 40 °C occasionally % 100
Protection class I
Degree of protection
• Without enclosure IP00
• With protective enclosure
(see "Selection and ordering data")
IP23 or IP54
Version: sheet-steel enclosure coated with epoxy resin, color gray RAL 7032
Installation altitude Up to 1000 m above sea level (above this, power reduction is necessary)
Protective devices
•External The transformers can be protected against short-circuits and overload on the primary
and secondary side with circuit breakers, see the following diagram. .
For reliable protection against short-circuits, overload and touch, the cables between the output termi-
nals of the transformer and the load must have a negligible line impedance. For more details see
DIN VDE 0100 (Erection of low-voltage systems) Part 410, Part 520 (particularly section 525) and
Part 610.
Assigned protective devices
(see "Primary-side short-circuit and overload protection with motor starter protectors")
Connection methods The permissible conductor cross-sections are assigned to the specified terminal types.
• Terminal arrangement
2)
Refer to DIN VDE 0298-4 and EN 60204 for the permissible conductor cross-sections
for the specified current according to the installation type. The terminals used are finger-safe
according to EN 50274.
• Terminal versions and connectable
cross-sections
3)
Other terminal sizes than standard versions on request.
Mounting position The permissible mounting position for each version is shown in the "Project Planning Aids"
3)
.
L1
L2
L3
Q1
T1
SEC
PRI
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NSF0_02077
IC10_11.book Seite 7 Donnerstag, 16. Dezember 2010 7:53 07
© Siemens AG 2010