Knight Fire & Security PA4S panic button, Black

£ 25 38
(Incl. VAT)

About this product

Knight Fire & Security PA4S is a panic button from the PA4 range.

PA4 is a Grade 3, 12VDC powered, confirmable PA for use in installations where accidental or false activations are a concern. In confirmable mode, either set of buttons will switch the first output, and the alternate set of buttons will switch the second output. This sequence is followed regardless of which set of buttons is pressed first, though there is a shunt option that maps each set to a specific output.

A fully activated unit can be reset with the included key. A partially activated unit can be reset this way too, or automatically via a 12-hour period of idle time. All wiring is done on a PCB fitted with 8x wire-clamping terminal blocks.

A sprung microswitch acts as the lid tamper, with a breakaway tamper to detect removal from the fitting surface. As the device is powered, a shunt option for a comfort/heartbeat LED is present for user reassurance. As well as a volt-free, resistorless, dry wiring option, PA4 also includes a variety of onboard resistors on both outputs that are selectable by shunt link:

  • 1k/1k
  • 2k2/2k2
  • 2k2/4k7
  • 2k2/6k8
  • 4k1/4k1 (Guardall 8k2)
  • 4k7/4k7
  • 4k7/6k8
  • 5k6/5k6

This specific model is black in colour with a stainless-steel fascia, made to suit similar building colour schemes.

Key features

  • 8-Terminal
  • Multi-Resistor
  • Microswitch & Breakaway Tampers
  • S/Steel Fascia
  • Two-Stage Confirmable Alarm
  • Made in UK
  • Environmental Class II

If you are matching this to an existing installation, work from the PA4S part number rather than the description.

£ 25 38
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Technical Details
Specifications
Brand Name
Knight Fire & Security
Manufacturer Part Number
PA4S
Product Series
PA4
Product Type
Panic Button
General information
Application/Usage
Panic Alarm
Technical information
Button Size
20.0mm
Connectivity Technology
Wired
Certifications
ATEX Compliant
No
CE marking
Yes
CNBOP Certified
No
Energy Star
No
INCERT Certified
No
LPCB Certified
No
NF Certified
No
NF&A2P Certified
No
RoHS compliance
Compliant
SBSC Certified
No
TIA Listed
No
VdS Certified
No
WEEE compliance
Compliant
Physical characteristics
Colour
Black
Material
Plastic, Stainless Steel
Power description
Input Voltage
12V DC
Product information
Mount Type
Surface Mount
Miscellaneous
Environmental certification
Environmental Class II (Indoor Uncontrolled)
Attributes
Indoor or outdoor use
Indoor
Input Voltage
12V DC

Specifications

Brand Name Knight Fire & Security
Manufacturer Part Number PA4S
Product Series PA4
Product Type Panic Button

General information

Application/Usage Panic Alarm

Technical information

Button Size 20.0mm
Connectivity Technology Wired

Certifications

ATEX Compliant No
CE marking Yes
CNBOP Certified No
Energy Star No
INCERT Certified No
LPCB Certified No
NF Certified No
NF&A2P Certified No
RoHS compliance Compliant
SBSC Certified No
TIA Listed No
VdS Certified No
WEEE compliance Compliant

Physical characteristics

Colour Black
Material Plastic, Stainless Steel

Power description

Input Voltage 12V DC

Product information

Mount Type Surface Mount

Miscellaneous

Environmental certification Environmental Class II (Indoor Uncontrolled)

Attributes

Indoor or outdoor use Indoor
Input Voltage 12V DC

Knight Fire & Security PA4S panic button

Knight Fire & Security PA4S panic button, Black

Who this is for

For the installer — this is the panic button supplied under Knight Fire & Security part number PA4S. Specify it by that part number.

The entries in the specification table are the ones held against this part number.

In plain English: this is a panic button made by Knight Fire & Security. The part number PA4S is the manufacturer's own code for this exact version of it.

Similar-looking items in the same family often differ only by a suffix on that code. If you are replacing something, match the code rather than the picture.

Buying this in the UK

We are a UK supplier and this panic button is sold and shipped from the UK. Prices are shown in pounds sterling.

This item is returnable under our standard returns terms. Faulty goods are handled separately and are never affected by a returns restriction.

We do not quote a warranty term for this part. Every supplier-stated term we have checked against the manufacturer's own document has turned out to be wrong, so we would rather say nothing than say something we cannot stand behind.

Ask us and we will check it for you. Your statutory rights are unaffected.

Stock on this line moves, and lead times move with it. Ask us for the current position before you commit to a date on site.

Questions we get asked

Is this the exact panic button I have been quoted? Check the manufacturer part number PA4S against your quote. That code is the only reliable identity for this item.

Is there a datasheet? Yes — the documentation attached to this listing was checked and names this exact part number. Documents that named only the family, or a different item, are not attached.

Can you check compatibility for us? Ask before you order and we will check it against the manufacturer's own documentation. We do not state compatibility that the record does not carry.

Why does the listing not answer every question? Because the specification held against PA4S answers some questions and not others. We would rather leave a gap visible than fill it with something we cannot show you.

What if I order the wrong version? Tell us the installation you are matching and we will work back to the part number with you. That is a faster conversation than a return.

Do you hold this in stock? Availability on this line changes through the week, so the honest answer is to ask us on the day. We will give you the current position rather than a general one.

Knight Fire & Security PA4S panic button
Knight Fire & Security

Knight Fire & Security PA4S panic button, Black

£25.38

Knight Fire & Security PA4S is a panic button from the PA4 range.

PA4 is a Grade 3, 12VDC powered, confirmable PA for use in installations where accidental or false activations are a concern. In confirmable mode, either set of buttons will switch the first output, and the alternate set of buttons will switch the second output. This sequence is followed regardless of which set of buttons is pressed first, though there is a shunt option that maps each set to a specific output.

A fully activated unit can be reset with the included key. A partially activated unit can be reset this way too, or automatically via a 12-hour period of idle time. All wiring is done on a PCB fitted with 8x wire-clamping terminal blocks.

A sprung microswitch acts as the lid tamper, with a breakaway tamper to detect removal from the fitting surface. As the device is powered, a shunt option for a comfort/heartbeat LED is present for user reassurance. As well as a volt-free, resistorless, dry wiring option, PA4 also includes a variety of onboard resistors on both outputs that are selectable by shunt link:

This specific model is black in colour with a stainless-steel fascia, made to suit similar building colour schemes.

Key features

If you are matching this to an existing installation, work from the PA4S part number rather than the description.

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