Hochiki Marine Approved Multi-Heat Sensor, ESP Analogue, Ivory ATJ-ENM
About this product
The Hochiki ATJ-ENM is a marine approved analogue multi-heat sensor for Hochiki ESP addressable fire systems. It suits marine and offshore fire installers who need heat detection approved to MED by DNV. It has fixed temperature and rate of rise elements, set from the control panel, and runs on 17 to 41 VDC.
Key features
- Approved for vessels – approved to MED by DNV
- Two heat elements – fixed temperature and rate of rise, either or both active
- Set up from the panel – user selectable modes controlled from the control panel
- Clear status at a glance – twin LEDs, green when polling, amber when isolating, red in fire
- Each device addressed – electronically addressed on the ESP protocol
- Ivory case – white case version sold as ATJ-ENM(WHT)
For installers
- Power: 17 to 41 VDC; quiescent mode current 350 µA (typ) at 24 VDC; alarm current 9.1 mA (excluding remote indicator).
- Mounting: base fixing centres 48 ~ 74 mm. 100 mm diameter, 45 mm high, 95 g.
- Compatibility: Hochiki ESP analogue addressable protocol; compatible bases YBO-BS, YBO-BSB2 and YBN-R/3(SCI)M. Control panel compatibility required.
- Standards: approved to MED by DNV; IP42 to BS EN 60529:1992+A2 2013.
Frequently asked questions
Is it approved for marine use?
Yes. It is approved to MED by DNV. Check that approval against the requirements for the vessel.
How does it decide there is a fire?
It has a variable temperature element and a rate of rise element. The control panel sets either element, or both together, to make the fire decision.
Which panels does it work with?
Panels using Hochiki's ESP analogue addressable protocol. Control panel compatibility is required, so check the panel's documentation.
Which bases does it fit?
YBO-BS, YBO-BSB2 and YBN-R/3(SCI)M.
What do the LED colours mean?
Green when polling, amber when isolating and red in fire.
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Download
- ATJ-ENM datasheet
Specifications
Dimensions
Specifications
| Brand | Hochiki |
|---|---|
| Model | ATJ-ENM |
| Manufacturer Part Number (MPN) | ATJ-ENM |
| Type | Marine approved analogue multi-heat sensor |
| Ordering code | ATJ-ENM |
| Colour | Ivory |
| Case material | Polycarbonate |
| Heat elements | Fixed temperature (variable) and rate of rise |
| Protocol | Hochiki ESP analogue addressable |
| Operating voltage | 17 to 41 VDC |
| Low power mode (typ) | 110 µA |
| Quiescent mode current | 350 µA (typ) at 24 VDC |
| Maximum current consumption | 45.5 mA |
| Alarm current (controlled by CIE) | 9.1 mA (excluding remote indicator) |
| Operating temperature range | -10 °C to + 50 °C |
| Operating humidity | 95% RH, non condensing (at 40 °C) |
| Storage temperature range | -30 °C to +60 °C |
| Storage humidity | <80% RH at 70 °C |
| Weight | 95 g |
| Dimensions | 100 mm diameter x 45 mm height |
| Base fixing centres | 48 ~ 74 mm |
| Compatible bases | YBO-BS, YBO-BSB2, YBN-R/3(SCI)M |
| IP rating | IP42 (BS EN 60529:1992+A2 2013) |
| Indicators | Twin LEDs, 360° viewing: green polling, amber isolating, red in fire |
| Approvals | MED by DNV |
Dimensions
| Dimensions | 100 mm diameter x 45 mm height |
|---|
Hochiki Marine Approved Multi-Heat Sensor, ESP Analogue, Ivory ATJ-ENM
