> Panasonic 2841 ATEX addressable heat detector
> Source: https://pap.fi/en/tuote/panasonic-2841-atex-lampoilmaisin-osoitteellinen/
> Full site in machine-readable form (in Finnish): https://pap.fi/llms-full.txt
> Pages in English: https://pap.fi/llms.txt

# Panasonic 2841 intrinsically safe analogue heat detector

Product code 41576

Intrinsically safe addressable analogue heat detector for potentially explosive atmospheres (zones 0, 1 and 2). The detector is connected to the COM loop via IS isolator unit 2842.

-   ATEX II 1 G Ex ia IIC T5 Ga, zones 0/1/2
-   Addressable, for EBL512 G3, EBLOne and EBL128 panels
-   Up to 20 IS detectors per isolator unit 2842
-   Three alarm algorithms: A1, A2S and BS
-   IP66/67 with mounting base 2843
-   EN 54-5, VdS G223019

## Product description

Panasonic 2841 is an intrinsically safe (IS) addressable analogue heat detector installed in potentially explosive atmospheres in zones 0, 1 and 2. The detector works like the analogue heat detector 3308/3309: the temperature is measured with a thermistor, and a fire alarm is indicated by the detector’s LED.

One of three alarm algorithms in accordance with EN 54-5 is selected for the detector in EBLWin: class A1 (alarm at 56 °C, or as early as 46 °C with a rapid rise in temperature), A2S (60 °C) or BS (74 °C). The detector operates in NORMAL mode in EBL512 G3 and EBL128 panels and in EBLOne panels from version 3.3 onwards, and its address (001–253) is set with the 4414 or 4414E address setting tool before connection.

### Installation and compatibility

The detector is connected to an IS COM line, which is connected to the COM loop via IS isolator unit 2842 installed outside the hazardous area. Up to 20 IS detectors 2840 or 2841 can be connected to one isolator unit. The IS COM line is radial without a return conductor, its length can be up to 500 m, and it does not need an end-of-line resistor. The detector is mounted on the ceiling either on its own (IP22) or in the watertight mounting base 2843, giving an IP rating of IP66/67. The detector is intended to be tested, for example, with Solo or Testifire test equipment.

## Technical data

- **Product code:** 41576
- **Manufacturer:** Panasonic
- **Product group:** Fire alarm systems › Field devices › Ex detectors
- **Colour:** Grey
- **Weight:** 325 g
- **Dimensions:** Ø 102 × 65 mm
- **LED:** Red
- **Operating temperature:** −10…+55 °C
- **IP rating:** IP22, IP66/67 with mounting box 2843
- **EN 54 approval:** EN 54-5
- **ATEX certificate:** DEKRA 11ATEX0107 X
- **ATEX classification:** II 1 G Ex ia IIC T5 Ga
- **CPR:** 0786-CPR-21784
- **Material:** Flame-retardant ABS and polycarbonate
- **Operating voltage:** 15–17.3 V DC (nominal 16 V DC, IS COM line)
- **Current consumption (quiescent):** ≤ 0.3 mA
- **Current consumption (alarm):** ≤ 1.5 mA
- **Humidity:** Max. 95% RH, non-condensing
- **Alarm temperature:** A1: 56 °C (rapid rise 46 °C), A2S: 60 °C, BS: 74 °C
- **Connection:** Push-in terminals, conductor 0.08–2 mm²
- **VdS approval:** G223019

## Documents

Original manufacturer documents (PDF).

### Technical datasheets

-   [Technical datasheet: 2840–2843 intrinsically safe addressable detectors](https://pap.fi/liitteet/tuotteet/en_td_2840_2841_2842_2843_mew01874_rev_11.pdf) PDF · English · 1.2 MB

### Certificates and declarations

-   [EU declaration of conformity, no. ESSC-F00018-10](https://pap.fi/liitteet/tuotteet/doc_2841_essc_f00018_10.pdf) PDF · English · 279 kB
-   [Declaration of performance (DoP), no. 0786-CPR-21784 (document ID ESSC-FP0018-12)](https://pap.fi/liitteet/tuotteet/dop_2841_essc_fp0018_12.pdf) PDF · English · 240 kB
-   [CPR certificate of constancy of performance, no. 2831-CPR-F2749 (issue 02)](https://pap.fi/liitteet/tuotteet/cpr_2841_2831_cpr_f2749.pdf) PDF · English · 194 kB valid until further notice
-   [CPR certificate of constancy of performance, no. 0786-CPR-21784](https://pap.fi/liitteet/tuotteet/cpr_2841_0786_cpr_21784.pdf) PDF · multilingual · 2.0 MB valid until further notice
-   [EU-type examination certificate (ATEX), no. DEKRA 11ATEX0107 X, issue 3](https://pap.fi/liitteet/tuotteet/dekra_2840_2841_11atex0107_iss_3.pdf) PDF · English · 2.3 MB
-   [VdS approval, no. G 223019 (dated 2 June 2023)](https://pap.fi/liitteet/tuotteet/vds_2841_g223019_exp_2029-07-17.pdf) PDF · multilingual · 994 kB valid 16 May 2023 – 15 May 2027
-   [VdS approval, no. G 223019 (dated 18 July 2025)](https://pap.fi/liitteet/tuotteet/vds_2840_g223018_exp_2029-07-17.pdf) PDF · multilingual · 911 kB valid 18 July 2025 – 17 July 2029