Apollo 55000-280 XP95 IR2 Flame Detector

Name: Apollo 55000-280 XP95 IR2 Flame Detector – Datasheet & Quote
Brand: Apollo
SKU: 55000-280

A dual-IR flame detector for open flaming fires

The Apollo 55000-280 is the XP95 IR2 flame detector, designed to protect areas where open flaming fires may be expected. It has two infrared sensors that respond to different IR wavelengths to discriminate between flames and spurious radiation. False alarms from factors such as flickering sunlight are avoided by a combination of filters and signal processing.

The detector responds to low-frequency flickering infrared radiation of 1 to 15 Hz (1.0 to 2.7 micrometres), so it can detect flickering flames including those invisible to the naked eye such as hydrogen fires. Because it responds to flicker it can operate even if the lens is covered by a layer of oil, dust, water vapour or ice. It is loop powered, and a remote LED alarm indicator can be connected.

Technical specifications

Parameter	Specification
Part number	55000-280
Supply voltage	17-28 V dc, loop powered (no external supply)
Quiescent current	2.2 mA; maximum power-up time 4 s
Remote LED current	Limited to 2 mA
Range of view (high sensitivity)	0.1 m2 n-heptane at 25 m; 0.2 m2 at 35 m; 0.4 m2 at 45 m
Methylated spirit test	0.25 m2 at 25 m (clear flame), EN 54-10
Field of view	90 degree cone
Spectral response	1.0 to 2.7 micrometres
Sensitivity	High (Class 1); Low (Class 3)
Operating temperature	-10 C to 55 C; storage -20 C to 65 C
Humidity	0-95 % RH, no condensation or icing
IP rating	IP65
Dimensions / weight	142 mm wide x 108 mm high x 79 mm deep; 1.75 kg
Housing / cable entries	Blue die-cast zinc alloy; 2 x 20 mm
Communication	XP95 native, Discovery compatible
Approvals / directives	EN 54-10 (tested at Class 1); EMC 2014/30/EU; CPR 305/2011

Detection behaviour and installation notes

The response table shows a 0.1 m2 yellow n-heptane flame detected at 25 m at Class 1 sensitivity, and a 0.25 m2 clear methylated-spirit flame at 25 m. Because the field of view is a 90 degree cone, placement and aiming determine coverage rather than the headline distances, which assume a flame in the cone.

Features listed by Apollo are sensitivity to flickering IR, detection through films of oil, dust, water and ice, response to flickering flames including those invisible to the naked eye, and a remote optical self-test function. The 55000-280 is a general-purpose, non-hazardous-area detector; the flameproof XP95 Exd version is a separate model.

What to confirm before ordering

Confirm the target fuel and fire size, the distance and angle to the hazard, the sensitivity setting (Class 1 or Class 3), cable gland and enclosure needs, and whether the installation is a hazardous area. This model carries no hazardous-area certification in the datasheet, so for classified zones consider the Apollo XP95 Exd flameproof flame detector instead.

Check compatibility with the XP95 or Discovery control panel and loop loading, and note that Apollo states the EMC declaration applies provided the unit is used as described in its datasheet.

Documents and quotation

The manufacturer document for the 55000-280 is listed under Documents on this page: Apollo PP2110 XP95 IR2 Flame Detector technical data (Issue 7, 2025). Browse related items in Fire & Gas Detectors. For price, availability and lead time, send an RFQ with the exact part number, quantity and project details; Seven Star LLC is an independent supplier based in Muscat and confirms stock and delivery on quotation.

Apollo XP95 loop devices

XP95 is the Apollo range of analogue addressable detectors and interfaces. Besides detectors, it includes modules that link the loop to other equipment. The Sounder Control Unit on our site is one of these: it lets the control panel switch and supervise a circuit of conventional sounders fed from an external power supply.

Ordering Apollo devices: what we need

Apollo identifies each device by a part number in the form 55000-000, for example 55000-182 for a DIN-rail sounder control unit. Send that number, the range name printed on the device, the quantity, and the make and model of your control panel. For detectors, state whether mounting bases are needed and which type.