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2CSM228685R0812 ABB TS812 TS8/12 Bell Transformer 8VA 230V AC to 12V AC
ABB TS812 TS8/12 is an 8 VA modular bell transformer with a 230 V AC primary, 12 V AC SELV secondary output and integrated thermal protection for discontinuous-duty bell and signalling circuits.
£45.36
Why Choose the ABB TS812 TS8/12 Bell Transformer?
The ABB TS812 (TS8/12) is a compact non-inherently short-circuit-proof bell transformer designed to supply safety extra-low voltage (SELV) to doorbells, chimes and other compatible signalling equipment. Part of the ABB System pro M compact TS transformer range, it provides electrical isolation and separation between the mains supply and the extra-low-voltage secondary circuit.
With a maximum discontinuous-duty rated power of 8 VA, the TS8/12 operates from a 230 V AC primary supply and provides a 12 V AC secondary output. Its rated secondary current is 0.66 A, making it suitable for appropriately rated bells, chimes and other low-power signalling loads requiring intermittent operation.
The TS812 incorporates a thermal protection device in the secondary circuit to provide resistance to short-circuit currents. Its compact 35 × 85 × 65 mm construction occupies only 2 DIN modules, while an IP20 protection rating and DIN-rail mounting make it well suited to installation inside residential and commercial distribution assemblies.
Key Advantages
- Purpose-designed bell transformer for discontinuous-duty signalling loads.
- 8 VA maximum rated power.
- 230 V AC primary input for standard mains installations.
- 12 V AC SELV secondary output.
- 0.66 A secondary current for compatible low-voltage equipment.
- Integrated secondary-side thermal protection provides resistance to short-circuit currents.
- Compact 35 mm / 2-module DIN-rail format.
- Designed in accordance with IEC/EN 61558-2-8 for bell transformer applications.
Key Features
- ABB System pro M compact TS series.
- Non-inherently short-circuit-proof bell transformer.
- 8 VA discontinuous-duty rated power.
- 230 V AC primary voltage.
- 12 V AC secondary voltage.
- 0.66 A rated secondary current.
- 50/60 Hz rated frequency.
- SELV secondary circuit.
- Class B insulation system.
- IP20 degree of protection.
- Integrated thermal protection in the secondary circuit.
- DIN-rail mounting in a compact 2-module enclosure.
Reliable Extra-Low-Voltage Power for Bell and Signalling Circuits
Doorbells, chimes and similar signalling devices commonly require an isolated extra-low-voltage supply rather than direct connection to mains voltage. The ABB TS8/12 converts a 230 V AC primary supply into an isolated 12 V AC SELV output, providing electrical separation between primary and secondary circuits for compatible equipment.
The ABB TS range is specifically intended for loads requiring a discontinuous supply. Integrated secondary-side thermal protection makes the TS812 resistant to short-circuit currents, while its compact DIN-rail construction allows it to be installed neatly alongside other modular protection, control and signalling devices.
Typical Applications
- Doorbell circuits.
- Electric bells and chimes.
- Low-voltage signalling equipment.
- Residential building notification circuits.
- Compatible 12 V AC signalling devices.
- Residential and commercial distribution boards.
- DIN-rail assemblies requiring a 12 V AC SELV supply for discontinuous loads.
Technical Specifications
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| Primary Voltage | 230V | |
|---|---|---|
| Rated Power (VA) | 8 VA | |
| Phase | Single Phase | |
| Secondary Voltage | 12V | |
| Series | System pro M compact TS | |
| ABB order code | 2CSM228685R0812 | |
| Product type | Bell transformer | |
| Transformer type | Non-inherently short-circuit proof | |
| Maximum rated power | 8 VA, discontinuous duty | |
| Primary rated voltage | 230 V AC | |
| Secondary rated voltage | 12 V AC | |
| Rated secondary current | 0.66 A | |
| Rated frequency | 50/60 Hz | |
| Secondary circuit | SELV | |
| Secondary voltage tolerance under load | ±15% | |
| No-load power loss | <2.5 W | |
| Insulation system | Class B | |
| Short-circuit protection | Integrated secondary thermal protection | |
| Degree of protection | IP20 | |
| Terminal cable capacity | 2.5 mm² / 14 AWG | |
| Terminal tightening torque | 0.5 N·m | |
| Operating ambient temperature | +10 to +40 °C | |
| Mounting | DIN rail | |
| Width | 35 mm / 2 modules | |
| Height | 85 mm | |
| Depth | 65 mm | |
| Standard | IEC/EN 61558-2-8 | |
| Net weight | 0.35 kg | |
| Pack quantity | 6 pieces | |
| EAN / GTIN | 8012542286851 |
Frequently Asked Questions
What is the ABB TS812 used for?
The ABB TS812 is a bell transformer designed to provide an isolated 12 V AC SELV supply for doorbells, chimes and other compatible signalling equipment requiring discontinuous power.
What is the power rating of the ABB TS8/12?
The TS8/12 has a maximum rated power of 8 VA and is designed for discontinuous-duty applications.
What input and output voltages does the ABB TS812 use?
The transformer operates from a 230 V AC primary supply and provides a 12 V AC secondary output.
What output current does the ABB TS8/12 provide?
The TS8/12 provides a rated secondary current of 0.66 A at 12 V AC.
Does the ABB TS812 have short-circuit protection?
Yes. The TS812 is a non-inherently short-circuit-proof transformer with an integrated thermal protection device in the secondary circuit, making it resistant to short-circuit currents.
Trusted ABB Bell Transformer Power
ABB System pro M compact TS bell transformers provide isolated extra-low-voltage power for bells and signalling circuits, combining SELV output, compact DIN-rail installation and integrated thermal protection for dependable building electrical systems.
