Description
Hochiki ATJ-EN Multi-Heat Addressable Detector
| Hochiki ATJ-EN Data Sheet |
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Hochiki Heat Detector Technical Specifications
| Specification | Details |
|---|---|
| Operating Voltage | 17 – 41 VDC |
| Quiescent Current | 350 µA |
| Alarm Current | 9 mA |
| Operating Temp | -10°C to +50°C |
| Max Humidity | 95% RH (non-condensing) |
| Colour | (Ivory) |
| Dimensions | 100 mm (diameter) x 45 mm (height) |
| Mounting Base | Requires Hochiki YBN-R/3 or equivalent |
Hochiki ATJ-EN Product Overview:
he Hochiki ATJ-EN is a sophisticated analogue addressable multi-heat detector engineered for high-performance fire detection in commercial, industrial, and high-risk applications.
Part of Hochiki’s trusted ESP (Enhanced System Protocol) range, this device combines rate-of-rise and fixed temperature detection methods to deliver accurate and reliable performance in a wide variety of environments.
Key Features of the Hochiki ATJ-EN
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Dual heat detection technology: Integrates both fixed temperature and rate-of-rise sensing for flexible application across different temperature profiles.
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Selectable response modes: Easily configurable for static or rate-of-rise operation using standard Hochiki control panels.
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360° LED indicators: Twin LEDs offer clear visibility from any angle — green for polling, red for alarm condition.
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Electronically addressed: No mechanical switches; addressing is done digitally to minimise installation errors.
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Approvals: LPCB and VdS certified to EN54-5, approved to Classes A1R, B, and C, and available in SIL2-rated versions for safety-critical systems.
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Wide operating range: Ideal for environments prone to high ambient temperatures or where smoke detection may be unsuitable, such as kitchens, garages, or warehouses.
Easy Installation & Maintenance
The ATJ-EN is designed for fast, straightforward installation. It mounts easily using standard Hochiki detector bases YBN-R/3 and requires no tools for addressing.
The LED indicators simplify maintenance checks by clearly showing device status at a glance. The detector’s robust design and advanced algorithms also help reduce false alarms, cutting down on unnecessary service calls.
Ideal For:
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Schools and universities
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Hospitals and healthcare facilities
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Warehouses and industrial units
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Kitchens and food production areas
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Car parks and mechanical plant rooms
Why Choose the Hochiki ATJ-EN?
When smoke detection isn’t suitable, the Hochiki ATJ-EN provides a reliable and compliant alternative. Its intelligent multi-heat sensing helps meet fire safety regulations without compromising on detection speed or accuracy.
Combined with a trusted manufacturer and a long service life, this detector is a leading choice for installers and building managers alike.
Approvals & Standards
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EN54-5:2000 approved
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LPCB certified
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VdS certified
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Optional SIL Level 2 variant for high-dependability applications
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