VESDA Power Supplies
VESDA VPS-250-E5 3A 38Ah Style E5 Power Supply
- Load
- 3 / 3.4A (3.4A non-certified to EN 54-4)
- Battery capacity max
- 38Ah batteries (max)
- Batteries
- 2 x 12 V, 38Ah (not supplied by Xtralis)
- Nominal ac supply voltage
- 230Vac (tested +10% / -15%)
- Dimensions
- 352mm x 455mm x 182mm (H x W x D)
- Weight
- 7kg (without batteries)
- Ip rating
- IP 30
Overview
What it is and how it fits the system.
The Xtralis VPS-250-E5 is a Style E5 power supply unit rated at 3A (3.4A non-certified) with 38Ah batteries maximum, capable of powering larger ASD units including the VESDA-E VEU at all fan speeds and the VESDA-E VEA. Running from a 230Vac nominal supply and accepting 2 x 12V 38Ah batteries (not supplied), it suits installations with multiple detectors and/or remote displays. Measuring 352 x 455 x 182mm and weighing 7kg without batteries, it provides nine 20/25mm cable-entry knockouts in various positions.
Technical overview
The VPS-250-E5 is a Style E5 power supply unit from Xtralis, part of the VESDA Power Supplies range, designed for powering larger ASD units including the VESDA-E VEU and VEA at all fan speeds. It delivers a certified 3A load (3.4A non-certified to EN 54-4) from a 230Vac nominal supply with +10%/-15% tolerance, supporting two externally sourced 12V 38Ah batteries for extended operation.
Measuring 352 x 455 x 182mm and weighing 7kg without batteries, it features nine 20/25mm cable-entry knockouts in various positions and provides visual indications via green (Output OK) and yellow (Fault) LEDs. The unit mounts via four 5mm holes on 360mm x 280mm centres and incorporates fuse protection with a 7.5A MINI automotive fuse for batteries, T2A HRC for AC input, and 4x2A on outputs. It operates in environments up to 95% RH non-condensing and maintains an IP30 rating for basic ingress protection. This model supersedes the earlier VPS-250-E, offering enhanced capacity for larger VESDA-E installations while maintaining compatibility with the same Style E5 form factor and mounting interface.
Specifications
Full technical data for this part.
| Description | Xtralis 3A 38Ah PSU - Style E5 |
|---|---|
| Load | 3 / 3.4A (3.4A non-certified to EN 54-4) |
| Battery capacity max | 38Ah batteries (max) |
| Batteries | 2 x 12 V, 38Ah (not supplied by Xtralis) |
| Nominal ac supply voltage | 230Vac (tested +10% / -15%) |
| Dimensions | 352mm x 455mm x 182mm (H x W x D) |
| Weight | 7kg (without batteries) |
| Weight with batteries | 35kg (with max batteries) |
| Mounting | 4 x 5mm holes on 360mm x 280mm centres |
| Cable entries | 9 off 20/25mm knockouts Various positions |
| Fuse rating | Battery: 7.5A MINI Automotive Fuse; AC supply - T2A HRC 20mm (both 20mm); Output: 4x2A |
| Indications | Output OK: green LED, Fault: yellow LED, External only |
| Ip rating | IP 30 |
| Humidity | 95% RH non-condensing |
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.
24Volt 0.5 amp Power Supply Unit
Alternative — sibling Style E5 PSU in the same range (0.5A / 7Ah size)
24Volt 0.5 amp Power Supply Unit
Alternative — sibling Style E5 PSU in the same range (0.5A / 14Ah size)