Gent Key switch Interface (Single Channel) c\w blue Enclosure
| Part no. | S4-34418 |
|---|---|
| Brand | Gent |
| Range | S4 Interfaces & Accessories |
| Sub-range | Keyswitch Interface |

Image for illustration; item supplied may differ
At a glance
- Single supervisory channelOne key operated input provides plant control on Vigilon Plus, Compact Plus and Nano systems.
- Command build trigger on channel 1Use channel 1 to initiate the configured cause-and-effect action.
- Loop poweredThe interface takes its operating power from the addressable device loop.
- Blue enclosure and back boxThe plant interface comes with its matching blue back box.
- Keys, opening tool and fixings includedTwo operating keys, a front-cover opening tool, an earth strap and fixings are supplied.
- Plant identification windowA 32 x 12mm label fits behind the clear cover, with both indicators left visible.
Description
The Gent S4-34418 is a single channel key switch interface for plant control on Vigilon Plus, Compact Plus and Nano fire alarm systems. Its supervisory input can trigger a configured command build on channel 1, giving a key operated control point away from the panel. The interface takes its power from the loop and comes in a blue enclosure with a blue back box. Two operating keys, a separate opening tool, an earth strap and fixings are included. A label window on the front identifies the plant being controlled, with space for a 32 x 12mm label behind the clear cover. The spare operating key pair is S4-34499.
The S4-34418 provides one supervisory input for key operated plant control on Gent analogue addressable systems, including Vigilon Plus, Compact Plus and Nano. Channel 1 can trigger a command build with the action set to suit the required cause and effect. The blue enclosure comes with its back box, two operating keys, a separate opening tool, an earth strap and fixings. Label the front to identify the plant controlled by the switch.
Read the full technical description
The S4-34418 provides one supervisory input for key operated plant control on Gent analogue addressable systems, including Vigilon Plus, Compact Plus and Nano. Channel 1 can trigger a command build with the action set to suit the required cause and effect. The blue enclosure comes with its back box, two operating keys, a separate opening tool, an earth strap and fixings. Label the front to identify the plant controlled by the switch.
In the commissioning tool the S4-34418 is set up as a loop powered interface unit and is identified as a KS interface once the configuration is read back from the panel. Channel 1 is the input trigger for the command build, which is tied to the address and loop of the interface. The command build sets the plant action that follows the key operation, and a reversible action returns the plant to normal when the key is turned back.
Across the key switch unit range, installation uses loop in and loop out connections, with cable screen continuity maintained through the earth strap or the back box earth point. The assembly mounts on a back box or a standard electrical box. For semi-flush fitting, recess the electrical box into the wall before attaching the assembly. Use fire rated cable and secure the box to an even wall surface.
The key switch unit range operates at 35V to 48V and has an 88 x 88mm front, with a 32mm assembly depth or 66mm depth when surface mounted. Turning the operating key clockwise to its stop activates the switch; reversing the movement returns it to normal. Red indication flashes in the active state and green indication shows operation. On the blue S4-34418, fit the 32 x 12mm plant label behind the clear cover and leave both indicators visible.
Specifications
| Brand | Gent |
|---|---|
| Device | Single channel key switch interface |
| Application | Key operated plant control |
| Input | One supervisory channel |
| Command build trigger | Channel 1 |
| Power source | Loop powered |
| Panel compatibility | Vigilon Plus, Compact Plus and Nano |
| Enclosure colour | Blue |
| Back box | Blue back box included |
| Operating keys | Two included |
| Cover opening tool | Included |
| Spare operating keys | S4-34499, pack of two |
| Plant label | 32 x 12mm, behind clear cover; leave indicators visible |
| Commissioning device type | Interface unit; loop powered |
|---|---|
| Configured device identification | KS interface |
| Key switch range operating voltage | 35V to 48V |
| Key switch range dimensions | 88 x 88 x 32mm; 66mm deep when surface mounted |
| Key switch range mounting | Back box or standard electrical box; surface or semi-flush |
| Key switch range loop connection | Loop in and loop out; screen continuity to earth |
| Key switch range terminal capacity | 2.5mm² maximum |
| Key switch range operating temperature | -25°C to +70°C |
| Key switch range storage temperature | -30°C to +70°C |
| Key switch range humidity | Up to 95% non-condensing at +25°C to +55°C |
| Earth strap | Included |
| Fixings | Included |
Specifications per manufacturer documentation, subject to change. E&OE.
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| Data & Installation - S4 Keyswitch Interface (4188-910 issue 5) | Installation | 474 KB | Download PDF |
Spares & replacement parts
- S4-34499Set of 2 Keys for Key switch Interface & MCPSpare keys for the keyswitch interface.£27.77ex VAT£33.32 inc VATIn stock
FAQs
What does the S4-34418 control on a Gent system?
The S4-34418 provides a key operated supervisory input for plant control on Vigilon Plus, Compact Plus and Nano systems. Its single channel can trigger a command build on channel 1. The action is set during commissioning to match the required cause and effect. A blue enclosure identifies the plant interface, and its front label identifies the plant being controlled. The interface takes its power from the device loop and includes its blue back box.
Does the S4-34418 include the back box and operating keys?
Yes. The S4-34418 comes with a blue back box, two operating keys, a separate opening tool, an earth strap and fixings. The operating keys are for the switch; the opening tool releases the front cover. S4-34499 is the spare operating key pair for this interface. Across the key switch unit range, the assembly can be fitted to a back box or a standard electrical box, with the electrical box recessed into the wall for semi-flush mounting.
How is the S4-34418 configured for a command build?
The S4-34418 is configured in the commissioning tool as a loop powered interface unit, and the panel identifies it as a KS interface. Its supervisory input on channel 1 is the trigger for a command build, which holds the plant action for that key switch and is tied to the address and loop of the interface. A reversible action returns the plant to normal when the key is turned back. The command build, not the switch itself, decides what the plant does.
How is the S4-34418 installed on the loop?
The S4-34418 is a loop powered interface supplied with its blue back box. Across the key switch unit range, field wiring connects loop in from the preceding device and loop out to the following device. Keep the cable screens electrically continuous through the earth strap or via the back box earth connection. Fit the box to an even wall surface and use fire rated cables through the entries. The range accepts conductors up to 2.5mm² at its terminals.
How should the plant control label be fitted?
Give the S4-34418 a label identifying the plant controlled by its key switch. The label fits behind the transparent cover in the front window and measures 32 x 12mm. Position it so that the two indicators remain visible. The interface provides one supervisory input, and its channel 1 command build is configured for the required plant action. The labelled blue enclosure, included back box and operating key pair form the local key operated control point.