Detectors
Zettler (Johnson Controls): types, successors and bases
Which Zettler detectors manufactured since 2000 must be replaced, what is still available, which detector replaces older types and when a new base is needed – with Johnson Controls order numbers.
Detector age
How old is the detector – how long has it been in operation?
- Zettler: According to Johnson Controls, Generation 6 sensors store the serial number, date of manufacture and order number; this data can be retrieved at the panel.
- Logbook and reports (decisive): The operating time counts from the commissioning of the detector. The date is recorded in the logbook, in the commissioning or acceptance report or in the last replacement report. This gives the years and months in operation.
- Type plate on the detector: The label (usually on the underside or side of the detector, visible after twisting it out of the base) shows the type, serial number and date of manufacture or a date code (e.g. year/calendar week). If no commissioning date is documented, we take the cautious approach of calculating from the date of manufacture.
- Reading out via the panel: With many addressable loop detectors, detector data such as serial number, date of manufacture, degree of contamination and – depending on the system and software version – operating hours can be retrieved via the panel’s operating unit or programming software. We do this during the survey using your programming file.
This determines the replacement interval under DIN 14675: as a rule 5 years, or 8 years for detectors with contamination compensation and testing in accordance with the manufacturer’s specifications – details under Deadlines & standards. Send us a photo of the type plate and we will determine the age for you.
Zettler / Johnson Controls
Which Zettler detector is installed at your site?
Zettler fire alarm control panels (ZX, MZX, PROFILE Flexible) work with addressable MZX detectors. The current range is Generation 6 with the series 830 (without isolator) and 850 (with short-circuit isolator in the detector) in the 4″ base 4B. Previously, Series 801 (e.g. 801PH, 801CH) was used, often in the 5″ base 5B or MUB. According to Johnson Controls, the existing cabling can remain in place when modernising to PROFILE Flexible. The type designation is printed on the detector.
Images: Johnson Controls, Fire Detection Product Catalogue 2022. Examples shown; housing colour and labelling may vary by type.
No longer available
Zettler Series 801 detectors and their successors
The Series 801 detectors (MX technology) have been discontinued. Their successors are the Generation 6 sensors (830/850). The 850 detectors have the isolator in the detector – it only works in the pass-through base 4B-C.
| Image | Old detector | Old type | Available? | Alternative detector | New base? |
|---|---|---|---|---|---|
| Combined scattered-light/heat sensor, Series 801 | 801PH (516.800.500) | no – discontinued | 830PH (516.830.051) or 850PH with isolator (516.850.051) | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
| Scattered-light sensor, Series 801 | 801P | no – discontinued | 830P (516.830.052) or 850P (516.850.052) | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
| Heat sensor, Series 801 | 801H | no – discontinued | 830H (516.830.053) or 850H (516.850.053) | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
| CO/heat sensor, Series 801 | 801CH | no – discontinued | 830PC (516.830.054) or 850PC (516.850.054) – smoke/heat/CO² | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
| Combined scattered-light/CO sensor, Series 801 | 801PC | no – discontinued | 830PC (516.830.054) or 850PC (516.850.054) | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
| Ionisation smoke detector (MX) | 800I | no – discontinued | 830P or 830PH³ | no with base 4B; with 5B/5BI/MUB yes – 4B, 4B-I or 4B-C¹ |
¹ According to Johnson Controls, the 4″ base 4B is suitable for Series 801 and 830 sensors – if the old detector is already fitted in a 4B, the base remains. 5″ bases (5B, 5BI) and MUB date from MX technology; we check, based on your system, whether they can continue to be used with Generation 6 sensors. ² The 801CH is a CO/heat detector; the 830PC/850PC additionally detects smoke. The evaluation is reprogrammed in the panel. ³ Ionisation detectors contain a radioactive source and must be returned properly.
Current series
Generation 6 (830/850) and special detectors: same detector, same base
These Zettler detectors are available (Fire Detection Product Catalogue 2022, order numbers for Germany). When replaced on schedule, the detector is exchanged for the same type; the existing 4″ base remains.
| Image | Detectors | Item no. | Available? | Replace with | New base? |
|---|---|---|---|---|---|
| Scattered-light sensor 830P (EN 54-7, VdS G 211004) | 516.830.052 | yes | same type | no – 4B / 4B-I remains |
| Scattered-light sensor 850P with short-circuit isolator (EN 54-7/-17, VdS G 211008) | 516.850.052 | yes | same type | no – 4B-C remains |
| Heat sensor 830H (EN 54-5 A1R / A2S / CR) | 516.830.053 | yes | same type | no – 4B / 4B-I remains |
| Heat sensor 850H with short-circuit isolator (EN 54-5/-17) | 516.850.053 | yes | same type | no – 4B-C remains |
| Combined scattered-light/heat sensor 830PH (EN 54-5/-7) | 516.830.051 | yes | same type | no – 4B / 4B-I remains |
| Combined scattered-light/heat sensor 850PH with short-circuit isolator (EN 54-5/-7/-17) | 516.850.051 | yes | same type | no – 4B-C remains |
| Combined scattered-light/heat/CO sensor 3oTec 830PC (EN 54-5/-7, VdS G 211006) | 516.830.054 | yes | same type | no – 4B / 4B-I remains |
| Combined scattered-light/heat/CO sensor 3oTec 850PC with isolator (EN 54-5/-7/-17, VdS G 211010) | 516.850.054 | yes | same type | no – 4B-C remains |
| Infrared flame detector 801F (EN 54-10, VdS G 209082) | 516.800.006 | yes | same type | no – 4B remains |
| – | Scattered-light/heat sensor 801PHEx for hazardous (Ex) areas | 516.800.530 | yes | same type | no – MUBEx remains |
| – | Heat detector 801HEx for hazardous (Ex) areas | 516.800.532 | yes | same type | no – MUBEx remains |
| – | CO/heat detector 801CHEx for hazardous (Ex) areas | 516.800.531 | yes | same type | no – MUBEx remains |
| – | Infrared flame detector 801FEx for hazardous (Ex) areas | 516.800.066 | yes | same type | no – MUBEx remains |
Ex detectors are connected via the interface module EXI800 (514.001.063). Order numbers according to the Johnson Controls Fire Detection Product Catalogue 2022 (DE column).
Bases
Zettler bases: when a new base is needed
Generation 6 detectors are fitted into the 4″ bases of the 4B series. The pass-through base 4B-C is intended for 850 detectors with built-in isolator – in other bases their isolator has no function.
| Image | Bases | Item no. | Suitable for | Note |
|---|---|---|---|---|
 | Detector base 4″ standard – 4B | 517.050.041 | Series 801 and 830 (850 without isolator function) | remains during replacement |
| 4″ isolator base – 4B-I (VdS G 211061) | 517.050.043 | Series 801 and 830 | remains during replacement |
| 4″ pass-through base – 4B-C | 517.050.042 | Series 850 (isolator in the detector) | remains during replacement |
| 4″ surface-mounting base – 4B-EM | 517.050.052 | all 4″ bases | remains |
| 4″ surface-mounted base for damp rooms – 4B-DHM (IP 55) | 517.050.051 | all 4″ bases | remains |
| – | 5″ universal base – 5B (MX) | 517.050.017 | Series 801 / MX | check reuse with 830/850 |
| – | 5″ isolator base – 5BI (MX) | 517.050.018 | Series 801 / MX | check reuse with 830/850 |
| – | Ex detector base 4″ – MUBEx | 517.050.610 | 801PHEx, 801HEx, 801CHEx, 801FEx | remains during replacement |
Base types 4B according to the Johnson Controls 2022 catalogue; 5B/5BI according to dealer information.
Special detectors
Zettler (Johnson Controls): wireless, Ex, ventilation duct and linear detectors
For wireless applications, hazardous (Ex) areas, ventilation ducts and large halls, Johnson Controls offers wireless detectors, Ex detectors, duct detectors, linear beam smoke detectors and flame detectors under the ZETTLER brand.
| Image | Detectors | Item no. | Available? | Replace with | Note |
|---|---|---|---|---|---|
 | Optical wireless smoke detector incl. base, battery permanently soldered in (approx. 10 years) (EN 54-7/-25) | 180-27D | yes | same type (battery not replaceable) | via wireless LCD fire interface 512-27D |
| Wireless heat detector incl. base (EN 54-5/-25) | 181-27D | yes | same type | via 512-27D |
| Wireless combined smoke/heat detector incl. base (EN 54-5/-7/-25) | 182-27D | yes | same type | via 512-27D |
| – | Wireless LCD fire interface for up to 32 wireless components (EN 54-18/-25) / wireless repeater | 512-27D / 500-27D | yes | – | – |
| – | Ex detectors 801PHEx, 801HEx, 801CHEx, 801FEx | see table “Current series” | yes | same type | via EXI800 |
 | Air sampling chamber DPK6 for ventilation ducts with pass-through base 4B-C, for detectors 830PH/850PH (prEN 54-27) | 517.025.056 | yes | inserted detector according to replacement interval; replacement filter DPKF 517.025.055 | Sampling tubes DPK6-60/-150/-280 |
 | Linear beam smoke detector Fireray One (EN 54-12) | 516.015.022 | yes | same type | Long-range reflector kit 516.015.040 |
| Linear beam smoke detector FIRERAY 3000 (EN 54-12) | 516.015.030 | yes | same type | – |
 | Multi-head linear beam smoke detector FIRERAY 5000 complete / additional detector head (EN 54-12) | 516.015.020 / 516.015.021 | yes | same type | – |
 | Self-aligning beam smoke detector thefirebeam (EN 54-12) | 23320_3090010 | yes | same type | – |
 | Imaging linear beam smoke detector OSID (EN 54-12) | on request | yes | same type | – |
| – | Linear beam smoke detector connection module / module for MZX loop | BTM800 562.017 / BDM800 562.015 | yes | – | – |
 | Triple-IR flame detector FlameVision FV411f / FV412f (PAL camera) / FV414f (NTSC camera) (EN 54-10) | 516.300.411 / .412 / .413 | yes | same type | Mounting bracket MB300 |
| Matrix IR flame detector FlameVision FV311S / FV312S (EN 54-10) | 516.300.006 / 516.300.055 | yes | same type | – |
| Triple-IR flame detector FlameVision FV421i, intrinsically safe for hazardous (Ex) areas | 516.300.421 | yes | same type | – |
Order numbers (DE) according to the Johnson Controls Fire Detection Product Catalogue 2022. Linear beam smoke detectors and flame detectors are tested according to the manufacturer’s specifications instead of being replaced at fixed intervals.
Important
Before ordering
- Check the panel: Generation 6 sensors run on MZX-technology panels (MZX, PROFILE Flexible). With older ZX systems, the panel needs to be checked or modernised. We check this using your detector list and programming file.
- Replacement interval: Smoke and multi-sensor detectors after 5 years at the latest, or after 8 years with automatic contamination compensation and testing in accordance with the manufacturer’s specifications – details under Deadlines & standards.
- Change of detector series: New bases, different detector types or a changed number of detectors may constitute a significant modification – see expert inspection and fire brigade.
- EN 54 tested (as of 19.10.2026): All Zettler sensors listed as available are certified to EN 54-5 or EN 54-7 (850 models additionally to EN 54-17), and the flame detector 801F to EN 54-10. Rod-type heat detectors are not tested to EN 54 – we therefore do not list them. The detectors that are no longer available were approved under the EN 54 or VdS rules in force when they were introduced; since 2008, CE marking to EN 54 has been mandatory for new detectors – which is why we only name currently certified types as replacements.
- Installation by a specialist company only: Replacement and repair of detectors in fire alarm systems required under building law are part of maintenance and are reserved for a specialist company certified to DIN 14675 – even if you only buy the detectors from us. Details under Legal situation.
- Order numbers from Johnson Controls (Zettler) are listed in the tables (as per 2022 catalogue).
- Image credits and trademarks: Product images © Johnson Controls (Zettler). The images serve solely to identify the detectors. Brand and product names are the property of their respective owners. Further details in the Legal notice.
Not sure which detector is installed at your site?
Send us your detector list or a photo of the type plate. We will name the suitable replacement and tell you whether new bases are needed.