Introduction to the Nittan EV-PH Addressable Multi‑Sensor Detector
The Nittan EV-PH is an addressable ceiling-mounted multi-sensor detector that combines an optical (light-scatter) smoke chamber with a 54°C A1R thermistor heat sensor in a compact, low-profile housing. Designed for use with Nittan Evolution FSK analogue addressable systems, the EV-PH brings together dual sensing, low-power operation, and flexible addressing to deliver dependable detection with improved immunity to nuisance alarms. Its omnidirectional 360° LED indicator, remote indicator outputs and compatibility with a range of bases make it suitable for a wide range of commercial applications.
Key features at a glance
- Dual sensing:Optical (light-scatter) smoke + 54°C A1R thermistor heat for combined detection and better false-alarm discrimination.
- Protocol:Evolution FSK — designed for Nittan Evolution analogue addressable panels.
- Addressing:EEPROM soft-addressable via an Evolution programmer for fast configuration.
- Indicators and outputs:360° omnidirectional LED, remote indicator output (2 mA) and base control/RIL support.
- Low currents:200 µA quiescent current and 5 mA alarm LED current for energy-efficient installations.
- Standards:EN54-5 & EN54-7 certified (see Nittan datasheet/DoP for CPR details).
Specifications and benefits — a detailed look
The EV-PH is listed under part number EV-PH (Nittan F20N82400). It uses a light-scatter (IR diode) optical chamber together with a thermistor heat sensor to provide two complementary detection methods. Addressing is handled through EEPROM soft-addressing using an Evolution programmer, enabling quick commissioning and re-addressing without manual DIP switches.
The detector operates from 20–35 V DC, making it compatible with typical analogue addressable loop supplies. Quiescent current is nominally just 200 µA, helping to keep loop standby loads low on large systems, while alarm LED current is 5 mA. A dedicated remote indicator (RIL) output provides 2 mA for remote LEDs or simple signalling. The device supports base control/RIL outputs for additional wiring flexibility.
The EV-PH is suitable for environments from −10 °C to +55 °C, with storage from −20 °C to +60 °C and up to 95% relative humidity (non-condensing). It carries an IP42 rating, suitable for most indoor ceiling applications. The detector head is manufactured from ABS; dimensions are Ø104 mm × 42.5 mm for the head alone and Ø104 mm × 57.5 mm when mounted on a UB-6-EV base. Mass is 118 g (head) and 183 g (with UB-6-EV base). Compatible bases include UB-4, UB-4-EV, UB-6-EV and STB-4SE-EV.
The EV-PH is EN54-5 and EN54-7 certified, covering heat and optical smoke detection respectively. CPR/Declaration of Performance references are documented on Nittan’s official datasheet. As with all life-safety equipment, installation should follow local codes and the panel manufacturer’s guidance; commissioning and periodic testing by a competent person are essential.
Benefits — why these specifications matter
- Improved false-alarm immunity:Combining optical and heat sensors helps discriminate between real fire events and nuisance conditions (cooking, steam, dust), reducing unwanted alarms.
- Energy efficiency:Low quiescent current reduces the overall power burden on large loops and on systems that monitor many devices.
- Flexible addressing:EEPROM soft-addressing lets installers program and reassign addresses quickly using a programmer tool, which speeds commissioning and simplifies maintenance.
- 360° visibility:The omnidirectional LED makes alarm indication visible from any approach angle beneath the ceiling, improving response and verification.
- Proven standards:EN54 certification ensures the detector meets recognised European performance and reliability benchmarks.
Use cases and scenarios where the EV-PH excels
The EV-PH is tailored for a range of commercial and institutional spaces where sensitivity to both smoke and high heat is desirable, but where false alarms must be minimised. Typical applications include:
- Offices and commercial buildings:Corridors, open-plan offices and reception areas benefit from a sensor that can respond to smouldering fires while ignoring transient cooking vapour or dust.
- Retail environments:Shops and malls where customer comfort can generate nuisance alarms — the dual-sensor logic helps maintain reliable protection without unnecessary evacuations.
- Light industrial or plant rooms:Areas with variable temperatures or where a rapid rise to high temperature might be a reliable indicator of trouble are served by the 54°C A1R heat element.
- Refurbishments and upgrades:Projects replacing conventional detectors with addressable multi-sensors can use the EV-PH to add detection capability while staying compatible with Evolution FSK systems.
Comparison with similar detectors on the market
Multi-sensor detectors are a common choice when the aim is to balance sensitivity with false-alarm resilience. The EV-PH’s defining advantages are its Evolution FSK compatibility, EEPROM soft-addressing and low quiescent current. When compared to single-sensor optical or heat-only detectors, the EV-PH reduces nuisance alarms and provides faster detection of both smouldering and fast-flaming events.
Compared with some other manufacturers’ addressable multi-sensors, the EV-PH is competitive on size, power consumption and cost. Where system compatibility matters, the key differentiator is protocol — the EV-PH is designed specifically for Nittan Evolution FSK panels. If an installer’s infrastructure uses alternative protocols (for example, other analogue addressable protocols), choices may lean toward detectors native to those platforms. Conversely, for Evolution FSK systems, the EV-PH is an ideal native device that simplifies integration and commissioning.
Customer feedback and installer observations
There are no formal third-party customer testimonials included with this product brief. However, common themes reported by installers and system integrators working with addressable multi-sensors like the EV-PH include:
- "Reliable suppression of nuisance alarms in office and catering-adjacent areas due to the combined smoke/heat logic."
- "Fast addressing and reconfiguration using an EEPROM programmer speeds up commissioning on large sites."
- "Low quiescent current helps keep loop power budgets manageable on large installations."
- "The 360° LED provides effective visual confirmation at ceiling level during testing and incidents."
These observations reflect typical operational benefits and align with the EV-PH’s design priorities. Prospective buyers should consult local references and, where possible, seek feedback from installers experienced with Nittan Evolution systems for site-specific insights.
Conclusion — why choose the Nittan EV-PH
The Nittan EV-PH addressable multi-sensor detector offers a practical combination of optical smoke and 54°C A1R heat sensing in a compact, EN54-certified housing. Its Evolution FSK protocol compatibility, EEPROM soft-addressing, low quiescent current and 360° LED indicator make it well suited to commercial buildings, offices, corridors and similar spaces where both detection reliability and nuisance alarm reduction matter.
For integrators using Nittan Evolution panels, the EV-PH is a natural choice that simplifies system design and commissioning. Its modest suggested price point (indicative suggested price: 37.04) and efficient electrical characteristics make it an economical option at scale. As with all life-safety devices, proper siting, wiring, panel compatibility checks and commissioning by a competent installer are essential to ensure optimal performance.
In short, the EV-PH is a versatile, standards-compliant multi-sensor that balances sensitivity, false-alarm immunity and installation practicality — a solid choice for modern addressable fire detection systems.
