Gent Base - Common for all S-Quad Sensors
| Part no. | S4-700 |
|---|---|
| Brand | Gent |
| Range | S4 Bases & Accessories |
| Sub-range | Bases |
Image for illustration; item supplied may differ
At a glance
- S-Quad fitCommon base for S-Quad detection and alarm heads.
- Self-Test fitAccepts S-Quad Self-Test sensor heads.
- Loop cable connectionsProvides the fixed connection point for loop-in and loop-out wiring.
- Slotted fixingsMounting slots accommodate fixing centres from 50 to 80mm.
- Twist fittingThe head turns clockwise into the base until it clicks and the marks align.
- Locking pegAn optional peg secures the head and requires direct access for release.
Description
The Gent S4-700 is the common base for S-Quad sensor heads. It holds the head and provides the loop cable connections at the ceiling. The base mounts on a metal back box, with the loop earth kept continuous and secured to the box. The head twists into place and can be secured with the locking peg built into the base. Slotted fixing holes give 50 to 80mm centres. It also fits the S-Quad Self-Test range. For a ceiling detector with a VAD, fit the S4-705 IP21 plate between the base and ceiling. The plate is a separate part. The loop wires remain at the base when the head is removed.
The S4-700 is the common base for S-Quad detection and alarm heads, including S-Quad Self-Test sensors and S4M audio visual devices. The loop wiring terminates at the base, and the head fits by turning clockwise until it clicks into place and the alignment marks meet.
Read the full technical description
The S4-700 is the common base for S-Quad detection and alarm heads, including S-Quad Self-Test sensors and S4M audio visual devices. The loop wiring terminates at the base, and the head fits by turning clockwise until it clicks into place and the alignment marks meet.
The base is 115mm in diameter and has elongated fixing holes with centres from 50 to 80mm. Mount it on a metal back box. Carry earth continuity through the loop and secure the earth to the box. Keep spare wire short and flat within the base so that it does not obstruct the head.
For a secured installation, release the locking peg from its cutout in the base, insert it in the locking position and pierce the corresponding opening in the head. Removal then requires direct access to the peg. Press the peg inward and turn the head anticlockwise; the standard extractor cannot remotely release a locked head.
For a ceiling S-Quad detector with an integral VAD, add the S4-705 IP21 plate above the base. The plate clips to the base and seals around the cable entries. A detector without a VAD uses the common base alone.
Specifications
| Product type | S-Quad common sensor base |
|---|---|
| Detector range | S-Quad, S-Quad Self-Test and S4M |
| Base diameter | 115mm |
| Fixing centres | 50-80mm, elongated slots |
| Mounting support | Metal back box |
| Earth connection | To metal back box; loop continuity maintained |
| Loop wiring | Loop-in and loop-out connections |
| Head attachment | Clockwise twist until locked in position |
| Head security | Optional locking peg |
| VAD installation accessory | S4-705 IP21 plate |
Specifications per manufacturer documentation, subject to change. E&OE.
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| Datasheet (S4-700) | Datasheet | 3.9 MB | Download PDF |
| Installation manual (805589ST, S4-700, S4-715) | Installation | 5.3 MB | Download PDF |
Optional accessories
- S4-715S4 Optical DetectorAccepts the S-Quad sensor range that each specify 'S4-700 (Base)' alongside the device par£38.88ex VAT£46.66 inc VATIn stock
- S4-711S4 Dual Optical Heat SensorAccepts the S-Quad sensor range that each specify 'S4-700 (Base)' alongside the device par£65.78ex VAT£78.94 inc VATIn stock
- S4-720S4 Heat SensorAccepts the S-Quad sensor range that each specify 'S4-700 (Base)' alongside the device par£49.64ex VAT£59.57 inc VATIn stock
- S4-701IP21 base and base cover (pack of 1)S4-701 IP21 gasket assembly (supplied two-part with IP21 Plate S4-705 and the base); S4-70£10.58ex VAT£12.70 inc VATIn stock
- S4-705IP21 base covers (pack 5)S4-701 IP21 gasket assembly (supplied two-part with IP21 Plate S4-705 and the base); S4-70£11.37ex VAT£13.64 inc VATIn stock
- S4-FLUSHS-Quad Semi-Flush Mounting KitS4-FLUSH semi-flush fixing kit and other S-Quad accessories listed under 'Associated produ£28.23ex VAT£33.88 inc VATIn stock
- 13449-01Remote LED (for use with common base S4-700)13449-01 Remote LED - 'Remote LED for use with S4-700'; alternative SEN-LED; one remote LE£13.46ex VAT£16.15 inc VATIn stock
- S4-700-34K34000 S-Quad Adapter BaseS4-700-34K - '34000 S-Quad Adapter base' variant for use on 34000-series loops£23.57ex VAT£28.28 inc VATIn stock
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- S4T-711-VS4 SELF TEST Dual Optical Heat Sensor + Voice SounderUsed by / houses: S4 SELF TEST Dual Optical Heat Sensor + Voice Soun£140.54ex VAT£168.65 inc VATIn stock
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- S4T-720-V-VAD-HPRS4 SELF TEST Heat Sensor + Voice Sounder & High Power Red VADUsed by / houses: S4 SELF TEST Heat Sensor + Voice Sounder & High Po£139.93ex VAT£167.92 inc VATIn stock
- S4T-770-SS4 SELF TEST Optical Heat Sensor + SounderUsed by / houses: S4 SELF TEST Optical Heat Sensor + Sounder£99.27ex VAT£119.12 inc VATIn stock
- S4T-771-SS4 SELF TEST Dual Optical Heat Sensor + SounderUsed by / houses: S4 SELF TEST Dual Optical Heat Sensor + Sounder£115.42ex VAT£138.50 inc VATIn stock
- S4T-780-SS4 SELF TEST Heat Sensor + SounderUsed by / houses: S4 SELF TEST Heat Sensor + Sounder£104.66ex VAT£125.59 inc VATIn stock
- 805576S-Quad Base Label Plate (pack of 10)Optional location-marking label that can be fitted to the base.£8.28ex VAT£9.94 inc VATIn stock
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FAQs
Which detectors fit the S4-700?
The S4-700 is the common base for S-Quad detection and alarm heads, including S-Quad Self-Test sensors and the S4M audio visual range. The head plugs into the base and turns clockwise until it clicks into place. The loop wiring stays at the base. For a ceiling detector with a built-in VAD, the installation also uses an IP21 plate between the base and the ceiling. A detector without a VAD uses the common base alone.
Does the S4-700 need an IP21 plate?
A ceiling S-Quad detector with an integral VAD uses the S4-700 together with the S4-705 IP21 plate. The plate sits between the base and the ceiling and clips to the base before the assembly is secured to its metal box. Pierce the cable entry holes smaller than the cable diameter so that the plate closes around each cable. A S-Quad detector without a VAD uses the common base alone; the plate is an additional part for the VAD installation.
How is the S4-700 mounted?
Mount the S4-700 on a metal back box and secure the loop earth to that box. Earth continuity must run through the complete loop. The base has elongated fixing holes with centres from 50 to 80mm, and its diameter is 115mm. Route the loop cables through the base, make the connections and keep excess wire short and flat inside it. The head then turns clockwise into place until it clicks and the marks on the head and base align.
How does the S4-700 locking peg work?
The S4-700 has a locking peg in a cutout in the base. To use it, remove the peg from the cutout, insert it into the locking position and pierce the corresponding opening in the detector head. Once the head is locked, release requires direct access to the peg. Press the peg inward while turning the head anticlockwise, then remove the head. The standard detector removal tool cannot release a locked head remotely; the peg must be reached at the device.
How do I fit or remove a head on the S4-700?
Offer the head to the S4-700 and turn it clockwise until it rises into the base. Continue turning until it clicks, stops and the alignment marks meet. To remove an unlocked head, turn it anticlockwise to the stop and lift it away from the base. If the locking peg is fitted, press it inward before turning the head. Keep the loop wiring short and flat inside the base so that loose cable does not obstruct the head as it is fitted.
Also in this range
- S4BK-700Black Base - Common for all S-Quad SensorsCommon base in black.£11.30ex VAT£13.56 inc VATIn stock
