High‑quality flush (recessed) magnetic contact designed for steel doors. The TAGF‑SD19WH reed switch delivers a wide gap detection of 1½″ (≈ 38.1 mm) using a durable, high‑grade magnet encased in a thick plastic shell to withstand compression or crushing during installation. Ideal for perimeter security systems where discreet, reliable detection is required. White finish blends neatly with standard frames. Normal‑Closed (N/C) circuit configuration ensures that opening the door breaks the circuit, triggering alarm panels.
What’s Included in the Box
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1 × TAGF‑SD19WH magnetic contact (recessed/flush mount)
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Leads pre‑attached (12″ / 304.8 mm)
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Mounting instructions (hole sizes, recessing tips)
Main Features
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Flush (recessed) mount for discreet, tamper‑resistant installation in steel doors
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Steel‑door compatible design to maintain the wide gap even when mounted in steel
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Wide gap of 1½″ (≈ 38.1 mm), enabling detection even on loosely fitting or misaligned steel doors
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Stubby body: 3/4″ (19.05 mm) diameter × 0.84″ (21.34 mm) length, to reduce recessing depth
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White plastic shell protects the contact against crushing and mechanical damage
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12″ (≈304.8 mm) leads, ready for wiring
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Normally Closed (N/C) circuit configuration
Detailed Specifications
| Specification |
Details |
| Part Number |
TAGF‑SD19WH |
| Mount Type |
Flush (Recessed) mount |
| Application |
Steel‑door magnetic contact for security systems |
| Circuit Type |
Normally Closed (N/C) |
| Body Diameter |
3/4″ (19.05 mm) |
| Body Length |
0.84″ (21.34 mm) |
| Maximum Gap |
1½″ (38.1 mm) – “wide gap” rating |
| Wire Leads Length |
12″ (304.8 mm) |
| Voltage Rating |
30 VDC |
| Current Rating |
0.5 A |
| Colour |
White |
| Shell Material |
Thick plastic, impact/crush‑resistant |
| Suitable Door Material |
Steel doors |
Warranty Information
Brand Description
TAG is a specialist in security magnetic contacts and reed switches, with products engineered for robustness and reliability in both residential and commercial alarm/security systems. Their steel‑door / wide‑gap models are particularly trusted where standard contacts lose sensitivity due to door‑frame interference or misalignment.
SKU / Part Code
TAGF‑SD19WH
Practical Use Scenarios
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Installing in steel‑framed entrance doors of commercial premises where large gaps may be present due to warped frames
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Hidden (flush) installation in doors to prevent tampering—ideal for high‑security buildings
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Use in alarm panels or security systems requiring normally closed loop wiring
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Settings where aesthetics matter—white color for matching frame or wall colour, minimal visible parts
Excellence for the Australian and New Zealand Market
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Complies with standard voltage/current ratings used in AUS/NZ residential and commercial security installations
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Sourced from authorised distributor or brand representative in Australia, ensuring product authenticity
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Engineered to suit local environmental and structural conditions (steel doors, wide gaps, temperature variations)
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Warranty support handled locally for fast replacements and support
FAQs
Q: What is the maximum permissible gap for part TAGF‑SD19WH when mounted in a steel door?
A: The TAGF‑SD19WH supports a wide gap of 1½ inches (≈ 38.1 mm), ideal for use on steel doors where alignment may be less precise.
Q: What are the electrical ratings (voltage/current) for TAGF‑SD19WH?
A: It is rated at 30 VDC, 0.5 A.
Q: Is TAGF‑SD19WH normally closed or normally open?
A: TAGF‑SD19WH is Normally Closed (N/C), meaning the circuit is closed when the door is shut and opens when the contact separates.
Q: How long are the leads on TAGF‑SD19WH and are they sufficient for typical installation?
A: The leads are 12 inches (≈304.8 mm), which is suitable for most standard installations.
Q: What are the physical dimensions of TAGF‑SD19WH for recess mounting?
A: The body measures 3/4″ (19.05 mm) in diameter and 0.84″ (21.34 mm) in length, making it compact for flush installations.
