DCD-1E-IS
    DCD-1E-IS

DCD-1E-IS

Conventional heat detector Hochiki ATEX II 1G EEx ia IIC T5 IS/SIL2 55°C

The Hochiki DCD-1E-IS is a conventional intrinsically safe heat detector designed for fire detection in hazardous and explosive environments. It provides reliable fire detection through a combination of rate-of-rise and fixed temperature sensing, and it complies with ATEX and SIL safety standards.

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1. Product Identification

  • Product: Conventional Heat Detector

  • Model: DCD-1E-IS

  • Brand: Hochiki

  • Type: Rate-of-Rise Heat Detector with Fixed Temperature

  • Nominal Activation Temperature: approximately 55–60 °C

  • Application: Conventional fire detection systems for hazardous (ATEX) areas

2. General Description

The DCD-1E-IS is an intrinsically safe conventional heat detector designed for fire detection in hazardous and explosive environments.
It combines rate-of-rise temperature detection with a fixed temperature threshold, allowing rapid detection of abnormal temperature increases caused by fire.

The detector is certified ATEX II 1G EEx ia IIC T5, making it suitable for installation in Zone 0 and Zone 1 hazardous gas areas when used with an appropriate intrinsically safe barrier.

3. Main Features

  • Rate-of-Rise heat detection with fixed temperature backup

  • Intrinsic Safety (IS) for explosive atmospheres

  • Dual LEDs providing 360° visual indication

  • Remote indicator output available

  • Non-electronic mounting base

  • Compatible with YBN-R/4(IS) base

  • Available in ivory or white finish

  • SIL2 capable version available

4. Certifications and Compliance

  • ATEX: II 1G EEx ia IIC T5

  • SIL: SIL2 capability

  • LPCB approved

  • Germanischer Lloyd (GL) approved

These certifications allow the detector to be used in industrial hazardous environments with explosive gases or vapors.

5. Main Technical Specifications

Parameter Value
Supply Voltage 15 – 30 V DC
Quiescent Current approx. 50 µA
Alarm Current up to 50 mA
Operating Temperature −10 °C to +55 °C
Storage Temperature −30 °C to +70 °C
Maximum Humidity 95% RH (non-condensing)
Protection Rating IP63
Material ABS (Ivory or White)
Dimensions Ø 100 mm × 40 mm
Weight approx. 97 g

6. Typical Applications

This detector is commonly used in:

  • Oil and gas facilities

  • Petrochemical plants

  • Refineries

  • Chemical industries

  • ATEX hazardous areas

  • Industrial sites with explosion risks

DCD-1E-IS

Attachments

TECHNICAL SHEET
CERTIFICATES

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