---
lang: "en"
title: "SD-D Duct Smoke Detector"
sku: "SD-D"
canonical_url: "https://shop.marcomweb.it/en/converters-sensors/sd-d-duct-smoke-detector"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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SD-D Duct Smoke Detector

The SD-D provides relay outputs in the event of smoke detection or fault conditions. The alarm output relay can be manually or automatically reset, depending on the type of application.

## Technical Specifications

- Power supply 24Vac/dc, ±20%
- Power consumption 50mA max.
- Relay outputs (smoke and fault)
- SPST 2A @ 48V
- Minimum duct size 100 x 320 mm
- Maximum duct size 450 x 450 mm*
- LED indication ON in alarm
- Alarm relay (selectable) Manual or automatic reset
- Dimensions 300 x 20 mm diameter.
- Material Plastic
- Material PC/GF (halogen-free, flame retardant and UV stabilized)
- Dimensions 125 x 105 x 85 mm
- Housing: -30 to +60°C 20 to 80% non-condensing
- Mounts: 10 to 40°C
- Protection IP65
- Country of origin Denmark
- EMC compliance, CE and UKCA mark

---

Source: https://shop.marcomweb.it/en/converters-sensors/sd-d-duct-smoke-detector

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.