Elmdene TR4 TR Series, Door Retainer Power Supply Unit, 24V DC, 4A
| Stock available | Qty | Delivery |
|---|---|---|
| Poole | 0 | None in Poole |
| UK Hub | 29 | 2 to 3 working days |
- Green LED to indicate mains present
- Amber LED to indicate a fault
- Remote control of output
- Choice of control options
- Mains transient protection
- Fail safe operation
Frequently bought together
Product details
The Elmdene TR4 is a 24V DC 4A door retainer power supply with fire-panel controlled output, used to power magnetic door holders and release them on a fire alarm signal. Its fail-safe 24V removal input is BS 7273 compliant.
The enhanced Elmdene TR range of power supplies has been specifically designed for access control applications that require remote control of the power supply output. A typical example is where a TR power supply unit is used to power magnetic door retainers, utilising a signal from the fire panel in order to switch off the output to the doors in the event of a fire alarm activation. The units have an expanded range of input options, which includes the detection of a normally closed contact going open and also removal of a 24V DC signal to provide a fully fail safe operation mode (BS 7273 compliant).
The three control input options for remote control of the output are:
- Removal of an external 24V DC supply (BS 7273 compliant)
- Opening of a normally closed volt-free contact
- Closing of a normally open volt-free contact
LED status indicators provide quick diagnostics showing the presence of a mains input and output fuse failure.
Downloads
Compatible with / Used for: powering 24V magnetic door holders such as the Geofire 3-79-05300, with release on a fire alarm signal.
Key features
- Green LED to indicate mains present
- Amber LED to indicate a fault
- Remote control of output
- Choice of control options
- Mains transient protection
- Fail safe operation
Frequently asked questions
How does the fire panel release the doors?
The TR4 output can be switched off by removal of an external 24V DC supply (BS 7273 compliant), opening of a normally closed volt-free contact, or closing of a normally open volt-free contact.
What is the output of the TR4?
27V DC nominal (24V DC rated) at up to 4A, from a 230V AC input.
Product datasheet
Elmdene TR4 TR Series, Door Retainer Power Supply Unit, 24V DC, 4A Product datasheet · TR4 · PDF Open datasheet
