> Securiton DFU 535L RC replacement cartridge for DFU 535L
> Source: https://pap.fi/en/tuote/securiton-dfu-535l-rc/
> Full site in machine-readable form (in Finnish): https://pap.fi/llms-full.txt
> Pages in English: https://pap.fi/llms.txt

# Securiton DFU 535L RC replacement cartridge for the DFU 535L filter unit

Product code 61417

Replacement cartridge for the older DFU 535L dust filter unit.

-   For the DFU 535L filter unit
-   The successor filter unit is DFU 911

## Product description

DFU 535L RC is Securiton’s replacement cartridge for the DFU 535L dust filter unit. According to Securiton’s service information SI98, the DFU 535 filter is replaced every three months. The notice also explains when it is worth replacing the DFU 535 with a DFU 911 unit.

## Technical data

- **Product code:** 61417
- **Manufacturer:** Securiton
- **Manufacturer’s code:** DFU 535L RC (11-2300069-01-01)
- **Product group:** Aspirating smoke detection › Filters and maintenance
- **Compatibility:** DFU 535L
- **Replacement interval:** 3 months (SI98)

## Documents

Original manufacturer documents (PDF).

### Technical datasheets

-   [Product catalogue (series): SecuriSmoke ASD 2026 (Securiton)](https://pap.fi/liitteet/valmistajat/securiton__SecuriSmoke_ASD_PC2026_F301en_c.pdf) PDF · English · 2.5 MB

### Other documents

-   [Service information SI98 on replacing DFU 535 with DFU 911](https://pap.fi/liitteet/valmistajat/securiton__DFU_911_SI98_en_DFU_535_Modernization_with_DFU_911.pdf) PDF · English · 95 kB