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2CSM228735R0802 ABB TM1512 TM15/12 Bell Transformer 15VA 230V AC 4/8/12V AC
ABB TM1512 TM15/12 is a 15 VA fail-safe DIN-rail bell transformer with a 230 V AC primary and selectable 4 V, 8 V and 12 V AC SELV secondary outputs for discontinuous-duty signalling circuits.
£29.72
Why Choose the ABB TM1512 TM15/12 Bell Transformer?
The ABB TM1512 (TM15/12) is a compact fail-safe bell transformer designed to provide safety extra-low voltage (SELV) power for doorbells, chimes and other compatible signalling equipment. Part of the ABB System pro M compact TM transformer range, it provides electrical isolation and separation between the mains supply and extra-low-voltage secondary circuits.
With a maximum discontinuous-duty rated power of 15 VA, the TM15/12 operates from a 230 V AC primary supply and provides selectable 4 V AC, 8 V AC and 12 V AC secondary outputs. The corresponding secondary currents are 3.75 A at 4 V AC, 1.87 A at 8 V AC and 1.25 A at 12 V AC, providing flexibility for a range of compatible signalling loads.
The TM1512 is designed specifically for loads requiring a discontinuous supply. Its fail-safe construction, SELV secondary and compact 2-module DIN-rail format make it suitable for integration into residential and commercial distribution boards where reliable low-voltage power is required for bells and chimes.
Key Advantages
- Purpose-designed fail-safe bell transformer for signalling circuits.
- 15 VA maximum rated power for discontinuous-duty loads.
- 230 V AC primary input for standard mains installations.
- Selectable 4 V AC, 8 V AC and 12 V AC secondary outputs.
- Provides a SELV secondary supply for compatible equipment.
- Electrical isolation and separation between primary and secondary circuits.
- Compact 35 mm / 2-module DIN-rail construction.
- Designed in accordance with IEC/EN 61558-2-8.
Key Features
- ABB System pro M compact TM series.
- Fail-safe bell transformer.
- 15 VA maximum discontinuous-duty power.
- 230 V AC primary rated voltage.
- 4/8/12 V AC selectable secondary voltage.
- 3.75 A secondary current at 4 V AC.
- 1.87 A secondary current at 8 V AC.
- 1.25 A secondary current at 12 V AC.
- 50/60 Hz rated frequency.
- IP20 degree of protection.
- DIN-rail modular construction.
- Suitable for doorbells, chimes and comparable discontinuous-duty loads.
Flexible SELV Power for Bell and Signalling Circuits
Doorbells, chimes and similar signalling devices commonly require extra-low-voltage AC rather than direct connection to mains voltage. The ABB TM15/12 converts a 230 V AC primary supply into selectable 4 V AC, 8 V AC or 12 V AC secondary outputs while providing electrical isolation between the primary and secondary circuits.
The ABB TM range is designed for discontinuous-duty loads, particularly bells and chimes. The TM1512 combines a 15 VA maximum rating with three selectable secondary voltages, compact DIN-rail mounting and a SELV secondary supply, providing a versatile solution for low-voltage signalling circuits in building installations.
Typical Applications
- Doorbell circuits.
- Electric bells and chimes.
- Low-voltage signalling equipment.
- Residential building signalling systems.
- Commercial building notification circuits.
- Compatible 4 V AC, 8 V AC and 12 V AC signalling devices.
- DIN-rail distribution boards requiring SELV power for discontinuous loads.
Technical Specifications
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| Primary Voltage | 230V | |
|---|---|---|
| Rated Power (VA) | 15 VA | |
| Phase | Single Phase | |
| Secondary Voltage | 12V | |
| Series | System pro M compact TM | |
| ABB order code | 2CSM228735R0802 | |
| Product type | Fail-safe bell transformer | |
| Maximum rated power | 15 VA, discontinuous duty | |
| Primary rated voltage | 230 V AC | |
| Secondary rated voltages | 4 V AC / 8 V AC / 12 V AC | |
| Secondary current at 4 V AC | 3.75 A | |
| Secondary current at 8 V AC | 1.87 A | |
| Secondary current at 12 V AC | 1.25 A | |
| Maximum output current | 3.75 A | |
| Rated frequency | 50/60 Hz | |
| Secondary circuit | SELV | |
| Secondary voltage tolerance under load | ±15% | |
| No-load power loss | <2.5 W | |
| Degree of protection | IP20 | |
| Cable section | 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 | 0.30 kg | |
| Pack quantity | 6 pieces | |
| EAN / GTIN | 8012542287353 |
Frequently Asked Questions
What is the ABB TM1512 used for?
The ABB TM1512 is a fail-safe bell transformer designed to provide SELV AC power for doorbells, chimes and other compatible signalling equipment requiring a discontinuous supply.
What is the power rating of the ABB TM15/12?
The TM15/12 has a maximum rated power of 15 VA and is designed for discontinuous-duty applications.
What secondary voltages does the ABB TM1512 provide?
The transformer provides selectable 4 V AC, 8 V AC and 12 V AC secondary outputs from a 230 V AC primary supply.
What output currents are available from the ABB TM15/12?
The TM15/12 provides 3.75 A at 4 V AC, 1.87 A at 8 V AC and 1.25 A at 12 V AC.
How is the ABB TM1512 installed?
The TM1512 is a modular DIN-rail-mounted transformer measuring 35 mm wide, equivalent to 2 modules, for integration into suitable electrical distribution assemblies.
Trusted ABB Bell Transformer Power
ABB System pro M compact TM bell transformers provide isolated safety extra-low-voltage power for bells and signalling circuits, combining selectable secondary voltages, compact DIN-rail installation and fail-safe construction for dependable building electrical systems.
