Popular right now
Lots of people have looked at this recently

Selling fast!
Grab yours while you can

Apollo Series 65 Heat Detector, Class BR, 65°C Application 55000-127APO

Visit Apollo Fire Detection & Alarm Equipment
£ 13 91
(Incl. VAT) RRP: £16.69
Save £2.78

About this product

The Apollo 55000-127APO is a Series 65 heat detector for conventional fire alarm systems, in class BR standard form. It suits places that are dirty or smoky in normal use, where smoke detectors are unsuitable. Its maximum application temperature is 65°C, with a maximum static response temperature of 85°C.

Key features

  • Goes where smoke detectors can't – for applications where smoke detectors are unsuitable
  • Copes with grime and fumes – suited to environments that are dirty or smoky under normal circumstances
  • For warmer rooms – class BR, with a maximum application temperature of 65°C
  • Reacts to a quick rise – a pair of matched thermistors sets the rate of rise response
  • Simple to wire – two wire monitored supply, polarity insensitive
  • Runs on a wide voltage range – 9 V to 33 V

For installers

  • Power: supply voltage 9 V to 33 V, alarm voltage 6 V to 28 V dc. Holding voltage 6 V, holding current 10 mA.
  • Mounting: 100 mm diameter x 42 mm height, 80 g. Designed to IP54.
  • Cabling: two wire monitored supply, polarity insensitive. L1 IN and L2 are supply in, L1 OUT and L2 supply out, and -R is the remote indicator negative.
  • Compatibility: a Series 65 detector on a conventional circuit. Check the panel's documentation for compatibility.
  • Standards: approvals across the range are CPR, LPCB, VdS, VNIIPO, SBSC, FG and BOMBA, and not all detectors have all approvals.

Frequently asked questions

What does class BR mean on this detector?

It sets the temperatures. Class BR has a maximum application temperature of 65°C and a maximum static response temperature of 85°C.

Is this a rate of rise heat detector?

Yes. BR variants have a pair of matched thermistors, and this arrangement determines the rate of rise response.

How much current does it draw?

Confirm the quiescent and alarm current with Apollo before finalising a circuit design.

Does it have a flashing LED?

No. This part is the BR standard version. The flashing LED version is 55000-126.

Does the wiring have a polarity?

No. It is a two wire monitored supply and is polarity insensitive.

Which approvals does it hold?

Approvals across the range are CPR, LPCB, VdS, VNIIPO, SBSC, FG and BOMBA, and not all detectors have all approvals. Check this part against your specification.

£ 13 91
RRP: £16.69 Save £2.78
Google Top Quality Store · Rated Exceptional
Ships from United Kingdom
28 days hassle free returns
Secure payment transactions
Price
£13.91 Incl. VAT £16.69
Add a WME Product Care Plan Includes warranty, replacement and repairs backed by WME
Why add a product care plan:
  • Full breakdown support
  • Full replacement if we can't repair your product within 10 days
  • All parts, labour and callouts included if necessary
  • Extended manufacturer warranty with faster turn arounds
  • Excludes accidental & cosmetic damages
By selecting one of these plans you agree to purchase WME Care Plan. Please read the Terms and Important information to ensure WME Care Plan is right for you. Compare prices of extended warranties for electrical goods at www.compareextendedwarranties.co.uk
WME Care
Info about this product
Technical Details
Specifications
Brand
Apollo
Model
55000-127APO
Manufacturer Part Number (MPN)
55000-127APO
Also listed as
55000-127
Product type
Heat Detector BR standard
Class
BR
Maximum application temperature
65°C
Maximum static response temperature
85°C
Sensing
A pair of matched negative temperature co-efficient (NTC) thermistors
Supply wiring
Two wire monitored supply, polarity insensitive
L1 IN and L2
Supply in connections
L1 OUT and L2
Supply out connections
-R
Remote indicator negative connection
Supply voltage
9 V to 33 V
Ripple voltage
2 V peak to peak maximum at 0.1 Hz to 100 kHz
Alarm voltage
6 V to 28 V dc
Alarm indicator
Red light emitting diode
Design alarm load
420 Ω in series with a 2 V drop
Holding voltage
6 V
Holding current
10 mA
Minimum voltage to light alarm indicator
12 V
Remote output
Current sink to the negative line limited to 17 mA
Storage temperature
-30°C to +80°C
Operating temperature
-20°C to +65°C
Humidity
0% to 95% RH, no condensation or icing
Effect of atmospheric pressure
None
IP rating
Designed to IP54
Standards and approvals
CPR, LPCB, VdS, VNIIPO, SBSC, FG, BOMBA. Not all detectors have all approvals
Dimensions
100 mm diameter x 42 mm height
Weight
80 g
Materials
Housing: white flame retardant polycarbonate. Terminals: nickel plated stainless steel
Dimensions
Dimensions
100 mm diameter x 42 mm height
Specifications
Dimensions

Specifications

Brand Apollo
Model 55000-127APO
Manufacturer Part Number (MPN) 55000-127APO
Also listed as 55000-127
Product type Heat Detector BR standard
Class BR
Maximum application temperature 65°C
Maximum static response temperature 85°C
Sensing A pair of matched negative temperature co-efficient (NTC) thermistors
Supply wiring Two wire monitored supply, polarity insensitive
L1 IN and L2 Supply in connections
L1 OUT and L2 Supply out connections
-R Remote indicator negative connection
Supply voltage 9 V to 33 V
Ripple voltage 2 V peak to peak maximum at 0.1 Hz to 100 kHz
Alarm voltage 6 V to 28 V dc
Alarm indicator Red light emitting diode
Design alarm load 420 Ω in series with a 2 V drop
Holding voltage 6 V
Holding current 10 mA
Minimum voltage to light alarm indicator 12 V
Remote output Current sink to the negative line limited to 17 mA
Storage temperature -30°C to +80°C
Operating temperature -20°C to +65°C
Humidity 0% to 95% RH, no condensation or icing
Effect of atmospheric pressure None
IP rating Designed to IP54
Standards and approvals CPR, LPCB, VdS, VNIIPO, SBSC, FG, BOMBA. Not all detectors have all approvals
Dimensions 100 mm diameter x 42 mm height
Weight 80 g
Materials Housing: white flame retardant polycarbonate. Terminals: nickel plated stainless steel

Dimensions

Dimensions 100 mm diameter x 42 mm height

Apollo 55000-127APO heat detector, angled view

Apollo Series 65 Heat Detector, Class BR, 65°C Application 55000-127APO

What this heat detector does

A heat detector reacts to temperature rather than to smoke particles. That makes it useful in rooms where smoke detection would keep false-alarming, such as plant rooms and some kitchens.

This Apollo detector is part of the Series 65 range and is sold here in class BR form. It suits installers and maintainers working on conventional systems in rooms that run warm.

How it works

  • Two thermistors: a thermistor is a part whose electrical resistance changes with temperature. One is exposed to the surrounding air and the other is thermally insulated, and NTC means the resistance falls as the temperature rises.
  • A quick rise: when the air heats rapidly, the exposed thermistor changes first. An alarm starts if the ratio between the two passes a factory pre-set level.
  • Case: the housing is white flame retardant polycarbonate, and the terminals are nickel plated stainless steel.

Where to use it

When choosing between Apollo's heat detector classes, BR is the route where the maximum temperature can pass 50ºC but stays at or below 65ºC, with no sudden increase expected.

A heat detector is slower to respond than a smoke detector in most fires, so it is not a straight swap on an escape route. The system designer decides what goes where.

What the figures mean in practice

  • Application temperature: 65°C is the highest normal ambient the class is meant for. It is not the point at which it responds, which is a separate figure.
  • Lighting the indicator: the alarm indicator needs a minimum of 12 V, even though the detector can hold at a lower voltage.
  • Operating range: the detector works from -20°C to +65°C, so it can also suit cold areas within that range.

Installing it

A remote indicator is connected through the -R terminal, a current sink to the negative line limited to 17 mA.

Detector heads are normally sold without a base, so allow a compatible mounting base for each position.

Planning your system

Get the quiescent and alarm figures from Apollo before you finish a circuit design. Check the panel's end-of-line and load limits at the same time.

Use the same maker's range across a circuit where you can, as that keeps the compatibility question simple.

Apollo 55000-127APO heat detector, angled view
Apollo Fire

Apollo Series 65 Heat Detector, Class BR, 65°C Application 55000-127APO

£13.91 £16.69

The Apollo 55000-127APO is a Series 65 heat detector for conventional fire alarm systems, in class BR standard form. It suits places that are dirty or smoky in normal use, where smoke detectors are unsuitable. Its maximum application temperature is 65°C, with a maximum static response temperature of 85°C.

Key features

For installers

Frequently asked questions

What does class BR mean on this detector?

It sets the temperatures. Class BR has a maximum application temperature of 65°C and a maximum static response temperature of 85°C.

Is this a rate of rise heat detector?

Yes. BR variants have a pair of matched thermistors, and this arrangement determines the rate of rise response.

How much current does it draw?

Confirm the quiescent and alarm current with Apollo before finalising a circuit design.

Does it have a flashing LED?

No. This part is the BR standard version. The flashing LED version is 55000-126.

Does the wiring have a polarity?

No. It is a two wire monitored supply and is polarity insensitive.

Which approvals does it hold?

Approvals across the range are CPR, LPCB, VdS, VNIIPO, SBSC, FG and BOMBA, and not all detectors have all approvals. Check this part against your specification.

View product

  • Fast shipping

    On every UK Order

  • Special Trade Discount

    Regular sales and discounts

  • WME Guarantee

    We provide warranty

  • Full Support

    Talk to a real person