Hochiki ACB-EW ESP Analogue Waterproof Multi Heat Sensor | User Selectable Sensing Modes, IP67 Rated
£56.29 (inc VAT: £67.55)
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Key features
- IP67 rated for external, waterproof installs
- Fixed temperature and rate of rise, panel controlled
- Panel-controlled LED pulsing aids fault-finding
Downloads
Summary
The Hochiki ACB-EW is an analogue waterproof multi-heat sensor built for fire detection in locations a standard indoor detector can’t cover, rated IP67 and supplied with flying leads terminated in waterproof connectors so it wires straight onto the loop without an extra enclosure.
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That waterproof build means you can specify one device for exposed canopies, loading bays, plant rooms and external walkways rather than sourcing a separate weatherproof housing, cutting both material cost and time on site. Within the ESP range it’s the heat-only option, carrying a variable fixed temperature element and a rate of rise element that the control panel can run independently or together, so you tune sensitivity to the actual fire risk rather than relying on a single fixed response.
Electronic addressing onto Hochiki’s ESP protocol means it integrates with the same loop wiring as the rest of your system, and twin fire LEDs give 360° visual confirmation of status for commissioning and routine checks. The supplied fixing base, with 48-74mm fixing centres, means it’s ready to mount straight out of the box.
Features
- IP67 waterproof rating - install in car parks, loading bays and other exposed areas without a separate enclosure
- Waterproof flying lead connectors - connect straight to the loop without glanding into a junction box
- Fixed temperature and rate of rise elements, panel controlled - run either element alone or both together to match the fire decision to the risk
- Twin fire LEDs with 360° viewing - confirm alarm status from any approach angle during commissioning
- Panel-controlled LED pulsing - switch pulsing on or off from the panel to suit the site, where the panel supports it
- Electronically addressed on ESP - sits on the same addressable loop as the rest of your Hochiki ESP devices
- Supplied fixing base - fit and commission without sourcing a separate base, with 48-74mm fixing centres
- LPCB & VdS approved to Classes A, B & C - recognised for use on systems requiring third-party certified detection
FAQ
Yes. It’s rated IP67 and is supplied with flying leads and waterproof connectors specifically so it can be fitted externally, for example under canopies or in loading bays, without needing an additional weatherproof enclosure. No. It’s a dedicated multi-heat sensor combining a fixed temperature element and a rate of rise element, with no optical smoke chamber. If a location needs smoke detection, you’ll need a separate smoke or multi-sensor detector suited to indoor use. Both heat elements are controlled from the control panel rather than by a switch on the device itself, so either element, or both simultaneously, can be made active in the fire decision. This does require a panel that supports the relevant ESP functionality, so check compatibility before specifying it as a selling point on a job. It connects via flying leads terminated in waterproof connectors rather than a conventional base terminal block, so plan your containment and connector routing accordingly, particularly where the sensor sits outside the building envelope. The twin fire LEDs can be set to pulse or stay non-pulsing, but this is controlled from the control panel, so confirm your panel supports this feature before relying on it for commissioning or maintenance checks. The base supplied with the ACB-EW has fixing centres of 48mm to 74mm. No alternative bases are listed as compatible, so use the base supplied rather than substituting a standard ESP base.Can the ACB-EW be mounted outdoors without extra protection?
Does the ACB-EW detect smoke as well as heat?
How do the fixed temperature and rate of rise elements get selected on site?
What cabling method does the ACB-EW use?
Will the sensor LEDs pulse during normal polling?
What fixing centres does the supplied base use?
Specifications
| Ordering Code | ACB-EW |
|---|---|
| Operating Voltage | 17-41 VDC |
| Low Power Mode | 110 μA (typ.) |
| Quiescent Current | 350 μA (typ.) |
| Alarm Current | 9.1mA (excluding remote indicator, controlled by CIE) |
| Transmission Method | Digital communications using ESP |
| Operating Temperature Range | -10°C to +50°C |
| Storage Temperature Range | -30°C to +70°C |
| Maximum Humidity | 95% RH, non condensing (at 40°C) |
| Ingress Protection Rating | IP67 |
| Colour / Case Material | Ivory / polycarbonate |
| Weight | 100g |
| Diameter / Height | 100mm / 46mm |
| Compatible Bases | Supplied base only |
| Base Fixing Centres | 48-74mm |
| Approvals | LPCB & VdS, Classes A, B & C |
Downloads
- Datasheet (Adobe PDF)
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