Data Sheet for Product

ManualsBrandsSiemens ManualsPower SupplyCE Declaration SEM62.1, SEM62.2

AP1N5536en

2019-03-13

Building Technologies

536

SEM62.1 SEM62.2

Transformer

SEM62.1

SEM62.2

With housing

Transformers providing a reduction in voltage from AC 230 V to AC 24 V.

· Output power 30 VA

· Suitable for mounting on DIN rails

· Secondary power supply indication via LED

· Integral self-resetting primary fuse

· Secondary power supply on/off switch with replaceable fuse

Use

The SEM62.. mains transformers (with housings) reduce an

AC 230 V mains voltage to the AC 24 V supply voltage required by the controllers.

The transformers have output power ratings of 30 VA. An integral self-resetting fuse on

the primary side protects the transformer from overheating. SEM62.2 includes an on/off

switch with replaceable fuse. This eliminates the need for additional 24V circuit on/off

switch and fuse (or circuit breaker).

Type summary

Type Description

SEM62.1 Standard transformer

SEM62.2 Transformer with switch and replaceable fuse

Summary of content (4 pages)

PAGE 1
5 SEM62.1 536 SEM62.2 SEM62.1 SEM62.2 Transformer With housing Transformers providing a reduction in voltage from AC 230 V to AC 24 V. · Output power 30 VA · Suitable for mounting on DIN rails · Secondary power supply indication via LED · Integral self-resetting primary fuse · Secondary power supply on/off switch with replaceable fuse Use The SEM62.. mains transformers (with housings) reduce an AC 230 V mains voltage to the AC 24 V supply voltage required by the controllers.
PAGE 2
Mechanical design The SEM62.. transformers are single-phase split-bobbin safety transformer. On the primary side, the transformers are protected by a built-in PTC fuse. If the primary-side fuse trips, the fault condition on the secondary side must be cleared. When the transformer cools down, the fuse will reset automatically and normal operation will be resumed. Secondary power supply indication is provided via a green LED. SEM62.2 has a secondary side on/off switch with replaceable fuse.
PAGE 3
Electrical installation The SEM62.. is designed for AC 230 V primary supply voltage. When using several transformers in one system, the connection terminals G0 must be galvanically connected. There must be a minimum of 8mm distance from terminations to panel/enclosures in order to avoid electric shock. The on/off switch is for secondary power supply only. Under no circumstances should the front cover of SEM.. be removed. All local electricity regulations must be observed.
PAGE 4
Diagrams Internal diagram N L SEM62... G0 Legend N, L AC 230 V Input G0, G AC 24 V output G G0 G Note: Total transformer output power is 30VA. Two sets of GO, G terminals are provided for easier wiring purposes. Dimensions All dimensions in mm Issued by Siemens Switzerland Ltd. Building Technologies Division International Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.