4AC3208-0 Bell Transformer 8VA 230V/8V AC, Siemens

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Product Specifications

Brand: Siemens
Part Number: 4AC3208-0
Type: Bell Transformer
Series: SENTRON 4AC3
Rated Power: 8 VA
Primary Voltage: 230–240 V AC
Secondary Voltage: 8 V AC
Secondary Current: 1.0 A

Product Description

The Siemens 4AC3208-0 is a compact 8 VA bell transformer from the SENTRON 4AC3 series, designed to supply a safe 8 V AC low voltage for doorbell, gong, and door opener circuits in residential and commercial installations.

Key Features

Integrated PTC thermistor for automatic short-circuit and overload protection
Class II safety isolation (EN 61140) — no earth connection required
IP20 finger-safe housing for DIN rail distribution board installation
4 kV test voltage between primary and secondary windings

Technical Specifications

Parameter	Value
Rated Power	8 VA
Primary Voltage	230–240 V AC, 50 Hz
Secondary Voltage	8 V AC
Secondary Current	1.0 A
Insulation Class	E
Protection Class	IP20
Dimensions (W×H×D)	36 × 64 × 90 mm
Weight	0.26 kg
Standards	EN 61558-1, EN 61558-2-8

Installation

The 4AC3208-0 mounts on standard 35 mm DIN rail, occupying just 2 modular divisions (36 mm). Screw terminals provide secure wiring for both primary and secondary connections. Rated for ambient temperatures up to 40 °C and 91% relative humidity.