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2CSM228715R0802 ABB TM10/12 Bell Transformer 10 VA 230 V / 4-8-12 V AC
ABB TM10/12 is a 10 VA fail-safe modular bell transformer with a 230 V AC primary and selectable 4 V, 8 V and 12 V AC SELV secondary outputs for discontinuously operated bell and signalling circuits.
£25.88
Why Choose the ABB TM10/12 Bell Transformer?
The ABB TM10/12 is a compact fail-safe modular bell transformer designed to supply safety extra-low voltage circuits for loads requiring discontinuous operation. As part of the ABB TM series, it is particularly suitable for doorbells, chimes and other low-voltage signalling equipment in residential and commercial electrical installations.
The TM10/12 operates from a 230 V AC primary supply and provides selectable 4, 8 and 12 V AC SELV secondary voltages. With a maximum rated power of 10 VA, it provides flexible low-voltage power while maintaining isolation and separation between the primary and secondary circuits.
Its compact 35 × 85 × 65 mm construction occupies only two modules, making it well suited to DIN-rail distribution boards. With IP20 protection, 50/60 Hz operation and compliance with IEC/EN 61558-2-8, the TM10/12 provides a dependable solution for modular bell and signalling circuits.
Key Advantages
- Fail-safe bell transformer for SELV applications.
- 10 VA maximum rated power for discontinuously operated loads.
- 230 V AC primary supply for standard mains-powered installations.
- Selectable 4, 8 and 12 V AC secondary voltages.
- Electrical isolation and separation between primary and secondary circuits.
- Compact two-module design for modular electrical installations.
Key Features
- ABB TM bell transformer series.
- 10 VA maximum rated power.
- 230 V AC primary voltage.
- 4–8–12 V AC selectable secondary voltages.
- 50/60 Hz rated frequency.
- Safety extra-low voltage SELV secondary circuit.
- ±15% secondary voltage tolerance under load.
- IP20 protection degree.
- Compact two-module construction.
- Designed in accordance with IEC/EN 61558-2-8.
Fail-Safe SELV Power for Bell and Signalling Circuits
Bell transformers provide electrical isolation between the mains supply and safety extra-low voltage equipment. The ABB TM10/12 converts a 230 V AC primary supply into selectable 4, 8 or 12 V AC SELV outputs, allowing one compact transformer to support several common bell and signalling voltage requirements.
ABB TM transformers are designed for discontinuously supplied loads, particularly doorbells and chimes. The fail-safe design provides isolation and separation between the primary and secondary circuits, while the compact modular housing allows straightforward integration with System pro M compact electrical equipment.
Typical Applications
- Residential doorbells.
- Door chimes and buzzers.
- Low-voltage signalling circuits.
- Residential distribution boards.
- Commercial building electrical panels.
- Compatible discontinuously operated SELV equipment.
Technical Specifications
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| Primary Voltage | 230V | |
|---|---|---|
| Phase | Single Phase | |
| Secondary Voltage | 12V | |
| Rated Power (VA) | 10 VA | |
| Series | TM | |
| ABB order code | 2CSM228715R0802 | |
| Product type | Fail-safe modular bell transformer | |
| Maximum rated power | 10 VA | |
| Primary rated voltage | 230 V AC | |
| Secondary rated voltages | 4 / 8 / 12 V AC | |
| Secondary circuit | SELV | |
| Rated frequency | 50/60 Hz | |
| Secondary voltage tolerance under load | ±15% | |
| Off-load power loss | <2.5 W | |
| Protection degree | IP20 | |
| Width | 2 modules / 35 mm | |
| Dimensions (W × H × D) | 35 × 85 × 65 mm | |
| Terminal cable capacity | 2.5 mm² / 14 AWG | |
| Terminal tightening torque | 0.5 Nm | |
| Operating ambient temperature | +10 °C to +40 °C | |
| Standard | IEC/EN 61558-2-8 | |
| Weight | approx. 0.30 kg | |
| Pack quantity | 6 pieces | |
| EAN | 8012542287155 |
Frequently Asked Questions
What is the ABB TM10/12 used for?
The TM10/12 is a fail-safe modular bell transformer designed to supply SELV loads requiring discontinuous operation, particularly doorbells, chimes and similar low-voltage signalling equipment.
What is the rated power of the ABB TM10/12?
The TM10/12 has a maximum rated power of 10 VA for discontinuously operated loads.
What secondary voltages does the TM10/12 provide?
The transformer provides selectable 4 V AC, 8 V AC and 12 V AC SELV secondary voltages.
What primary voltage does the ABB TM10/12 use?
The TM10/12 is designed for connection to a 230 V AC primary supply and operates at a rated frequency of 50/60 Hz.
How large is the ABB TM10/12?
The TM10/12 measures approximately 35 × 85 × 65 mm and occupies two modules, making it suitable for compact modular distribution boards.
Trusted Low-Voltage Power from ABB
ABB TM fail-safe bell transformers provide isolated SELV power for doorbells, chimes and other discontinuously operated low-voltage signalling loads in residential and commercial electrical installations.
