Circuit Protection Devices

Bell transformer BONEGA® P-E-P 24T


1. Characteristic

2. Installation

3. Technical parameters

Relevant information

Price list


Terms of delivery

Information on claims

Certificates and declarations

How to buy at our company


A – User’s inscription directly on the transformer body

The bell transformer ET 4 is a safety, short-circuit-proof transformer in modular design (the width is 36 mm). It is intended to be installed into the distribution boxes to supply usual doorbells. With its design and technical parameters, the bell transformer ET 4 complies with the contemporary world-wide level. It is made according to the standard CSN EN 60 742.


To be connected on the DIN strip.



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The transformer is equipped with a transparent removable cover with locking in its upper position (not to fall down spontaneously when being inscribed). A two-line text with a user’s legend can be put into the limited slots (6,2 x 23 x 0,3 mm) under the cover. It is possible to write directly onto the plastic surface.

» Download templates for user's inscription

Technical parameters

Technical parameters

U prim. (input voltage) AC 230 V / 50 Hz (+6% až -10%)
U sec. (output voltage) 8 / 12 / 24 V AC
Rated output 8 VA
No-load current 16 mA
Dissipated power (no-load) 3,4 W
Total dissipated power
(with rated loading)
7,3 W
Load factor 100%
Protection IP 30
Short-circuit resistance Fully resistant
Class II – double insulation
Safety protective transformer, implicitly short-circuit-resistant

Export Manager: Michal Hudeček, tel: +420 605 518 724,

Sales Department:  - Mrs Adriana Jamná, fax +420 518 335 216, email :, 696 66  Sudoměřice nad Moravou 302


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BONEGA spol. s r.o., Potoční 302, 696 66 Sudoměřice nad Moravou, Czech Republic,, tel. +420 605 518 724