
Fire alarm system · Fire alarm system – CCC (previous models)
JTW-ZD-A20KEConventional fixed-temperature heat detector
Sanjiang conventional fixed-temperature heat detector, high sensitivity, real-time temperature sampling.
- Effective up to an installation height of 8 m
- Standby current below 50 µA; 1–15 mA in alarm
- 304 stainless steel contacts, non-polarized
Original manufacturer documents: Specifications & instructions (EN) · Sanjiang CCC Catalogue (EN) · CCC system installation guide (EN) · CCC Catalogue – Vietnamese translation (part 1) · CCC Catalogue – Vietnamese translation (part 2)
Conventional fixed-temperature heat detector JTW-ZD-A20KE
A microchip samples the temperature and processes the data in real time, so the device detects fire early and gives a warning.
Real-time monitoring and accurate judgement, avoiding erroneous reports.
High-sensitivity temperature fire detector.
The non-polarized detector contacts make installation of the fire alarm system very convenient.
Light weight: 60g
Contacts made of 304 stainless steel, durable in hot and humid weather such as Vietnam's and suitable for installation in coastal areas.
Very low monitoring current, below 50 µA; alarm current 1–15 mA.
Works well up to an installation height of 8m.
Compact, modern and attractive shape: diameter 105mm, height 43mm
Housing made of high-grade ABS plastic.
The product has passed fire-protection equipment inspection.
Technical specifications JTW-ZD-A20KE
| Model | JTW-ZD-A20KE |
|---|---|
| Type | Conventional heat detector |
| Standards | GB 4716-2005 |
| Detector class | A2 (response temperature 54–70 °C) |
| Operating voltage | Loop 24 V |
| Operating current | Monitoring < 50 µA; alarm 1–15 mA (depending on the loop current-limiting resistor) |
| Wiring | 2-wire non-polarized bus; used together with an input module and the fire alarm panel |
| Base | DZ-A16K |
| Indicator | Red: flashes when monitoring, steady on in alarm |
| Installation height | ≤ 8 m |
| Protection area | Per the applicable design codes and standards (in Vietnam: TCVN 5738:2021) |
| Environment | −10 °C to +50 °C; humidity ≤ 95 % (40 °C ± 2 °C, non-condensing) |
| Dimensions | Ø105 mm, height 43 mm (with base) |
| Weight | Approx. 60 g (with base) |
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