Transformer Rectifier
HLS-PSU-TR20 Door Hold Transformer-Rectifier 24V 2A
- Input voltage
- 230Vac, 50Hz nominal
- Output voltage
- 22- 30vdc dependent on load
- Load current
- 2A maximum (TR 2amp)
- Current
- 290mA maximum (TR 2amp)
- Mains input fuse
- T0.5A 20mm, 250Vac HBC (TR 2amp)
- Load output fuse
- F2A 20mm, 250Vac glass (TR 2amp)
- Operating temperature
- -10 to +40 OC 95%
Overview
What it is and how it fits the system.
The Honeywell HLS-PSU-TR20 is a Door Hold Transformer-Rectifier (24V 2A) from the enhanced TR power supply range, built for fire and access control applications that require remote control of the output. Typically used to power door retainers linked to the fire panel so holds release on alarm, it runs from a 230Vac 50Hz input and delivers 22-30Vdc dependent on load at up to 2A. It is housed at 200 x 230 x 80mm (HxWxD) and weighs 3.0kg, with T0.5A mains and F2A load fuses fitted.
Technical overview
HLS-PSU-TR20 is a Door Hold Transformer-Rectifier (24V 2A) from Honeywell's enhanced TR power supply range, designed for fire and access control applications requiring remote output control. It is typically used to power door retainers linked to the fire panel so that holds release on alarm, operating from a 230Vac 50Hz input and delivering 22-30Vdc dependent on load at up to 2A.
The unit is housed in a 1.2mm steel, white powder-coated enclosure measuring 200 x 230 x 80mm (HxWxD) and weighing 3.0kg. It features a T0.5A mains input fuse and an F2A load output fuse, both 20mm, 250Vac types. A green LED indicates mains presence, and it operates within -10 to +40°C at 95% relative humidity, with storage from -20 to +80°C.
It supersedes the 05106-05 model and is compatible with door holder magnets such as 04390-31 (24V DC 22mA), 04390-41 (floor mounted 24V DC 45mA), and 04390-55 (240V AC 17.5mA). Physical wiring details are in the installation manual. Related recommendations include the 4A sibling HLS-PSU-TR40.
Specifications
Full technical data for this part.
| Description | Door Hold Transformer-Rectifier 24V 2A |
|---|---|
| Order code | HLS-PSU-TR20 |
| Input voltage | 230Vac, 50Hz nominal |
| Output voltage | 22- 30vdc dependent on load |
| Load current | 2A maximum (TR 2amp) |
| Current | 290mA maximum (TR 2amp) |
| Mains input fuse | T0.5A 20mm, 250Vac HBC (TR 2amp) |
| Load output fuse | F2A 20mm, 250Vac glass (TR 2amp) |
| Dimensions | 200 x 230 x 80mm (HxWxD) |
| Weight | 3.0Kg (TR 2amp) |
| Case material | 1.2mm steel, white powder coated |
| Operating temperature | -10 to +40 OC 95% |
| Storage temperature | -20 to +80 OC |
| Indicators | Green LED Mains present |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Optional accessories
Optional additions — this product works without them.
Transformer Rectifier 24VDC 4.0A
Sibling model HLS-PSU-TR40 Door Hold Transformer-Rectifier 24V 4A is the 4A variant in the
Magnet Door Holder 24V DC 22mA
Listed alongside door holder magnets such as 04390-31 (24V DC 22mA), 04390-41 (floor mount

Magnet Door Holder 240V AC 17.5mA
Listed alongside door holder magnets such as 04390-31 (24V DC 22mA), 04390-41 (floor mount

Magnet Door Holder Floor Mounted 24V DC 45mA
Listed alongside door holder magnets such as 04390-31 (24V DC 22mA), 04390-41 (floor mount