Product overview
The VES VF5668 XP95A heat sensor uses a thermistor to report temperature information to compatible fire alarm equipment. The panel interprets the analogue value according to the selected detection strategy. Standard and high-temperature arrangements are described in the source, but their alarm thresholds and operating limits must be confirmed for the supplied model. This is heat detection rather than smoke sensing, so its coverage and application must be established using the appropriate heat-detector design instructions.
Technical specifications
| Brand / product range | VES |
|---|---|
| Product / system | VF5668 XP95A Heat Detector |
| Product type | Fire Detection |
| Product family | Fire Detection & Alarm |
| Subcategory | Apollo Addressable |
| Model | VF5668 XP95A |
| Detection principle | Single NTC thermistor; heat sensing |
| Supply | The electrical description states 17–28 V DC; the technical table states 16–28 V DC. Confirm the approved operating range for the supplied revision |
| Quiescent current | 250 µA average / 500 µA peak |
| Power-up surge | 1 mA |
| Alarm LED current | 2 mA |
| Remote indicator | 4 mA at 5 V across the remote load |
| Addressing | XPERT card in the compatible mounting base |
| Wiring | Two-wire, polarity insensitive |
| Operating temperature, standard version | −4°F to 158°F |
| Humidity | 0–95% without condensation or icing |
| Dimensions | 3.93 inch diameter x 1.65 inch high; 1.96 inch in base |
| Protection rating | IP53 in the referenced technical table |
| Variant selection | Standard and high-temperature responses are described; exact model, threshold and compatible panel setting must be confirmed |
| Source discrepancy | The narrative and table give different standard response temperatures; no universal alarm threshold is asserted |
Key features
- Model: VF5668 XP95A
- Detection principle: Single NTC thermistor; heat sensing
- Supply: The electrical description states 17–28 V DC; the technical table states 16–28 V DC. Confirm the approved operating range for the supplied revision
Applications
Compatible installations requiring heat detection where normal dust, smoke or fumes affect detector choice. Confirm the selected variant, maximum normal ambient temperature and required coverage before specification.
Selection and project integration
Share the fire alarm drawings, equipment schedule, compatible panel platform and cause-and-effect requirements with UDCT. Selection should confirm device protocols, supported interfaces, circuit supervision, power and standby calculations, and the exact enclosure or module arrangement.
Use the current manufacturer documentation to check compatibility, wiring limits, software requirements and approval scope. Commissioning should verify the configured alarm, fault, indication and control functions as part of the complete system. Remote reporting also requires a compatible receiving service and confirmation of local network availability.
Manufacturer documents
Official product reference
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