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Brand: C-TEC
C-TEC BF362 Conventional Fire Panel Barrier Interface
Description
The C-TEC BF362 is a barrier interface unit that lets a conventional zone of a C-TEC fire alarm panel serve intrinsically safe detectors in a hazardous area. It is compatible with all C-TEC manufactured conventional fire alarm panels and allows a zone of up to 10 intrinsically safe detectors and any number of manual call points to be used in hazardous environments such as gas plants. The unit sits between the fire panel and a Zener barrier, which is a separate part.
Technical specifications
| Parameter | Specification |
|---|---|
| Part number | BF362 conventional fire panel barrier interface unit |
| Compatibility | All C-TEC manufactured conventional fire alarm panels (CFP, MFP and FP types named in the diagram) |
| Hazardous zone capacity | Up to 10 intrinsically safe detectors and any number of manual call points on one zone |
| Supply | 24 V auxiliary supply from the fire panel |
| Quiescent current | 2.8 mA at 30 V |
| End-of-line | 4k7 end-of-line resistor supplied for the hazardous side; panel EOL (6K8 resistor for FP, EOL module for MFP, EOL capacitor for CFP) connected across the BF362 EOLD terminals |
| Fault indication | Open and short circuit wiring faults on the hazardous side of the barrier are shown as open circuit faults at the fire panel |
| Dimensions | 55 x 55 x 18 mm (W x H x D) |
| Related equipment | Zener barrier (not part of the BF362) connected between the interface and the hazardous zone wiring |
How the interface is wired
The BF362 has safe-side connections to the panel’s detector zone circuit (zone plus and minus) and to the 24 V auxiliary supply, and hazardous-side connections to the Zener barrier. The detector circuit end-of-line device supplied with the fire panel is connected across the BF362 EOLD terminals, which is a 6K8 resistor for FP panels, an EOL module for MFP panels and an EOL capacitor for CFP panels, while the 4k7 end-of-line resistor supplied with the BF362 goes at the end of the hazardous zone wiring. Manual call points should be positioned first on the zone wiring so that they keep working if a detector head is removed. The zero volt connection is joined to earth on most Zener barriers. Open and short circuit wiring faults on the hazardous side are shown as open circuit faults at the fire panel.
What to confirm before ordering
The instructions give very little data beyond the wiring: a quiescent current of 2.8 mA at 30 V, a 24 V auxiliary supply from the panel and a body of 55 x 55 x 18 mm. The suitability of the whole zone for a hazardous area depends on the detectors, the Zener barrier and the cable parameters matching, and on the area classification, none of which the BF362 sheet addresses, so these must be checked by the designer against the certificates of the detectors and barrier chosen. Confirm which C-TEC conventional panel is in use, the number of detectors, which barrier will be used and which Ex certification the detector heads carry before ordering. Intrinsically safe equipment should be installed to the relevant national and local requirements.
Related C-TEC products: C-TEC CFP702-4 2 Zone Conventional Fire Alarm Panel, C-TEC CFP708-4 8 Zone Conventional Fire Alarm Panel, C-TEC CFP704-4 4-Zone Conventional Fire Alarm Panel, C-TEC XFP502/CA 2-Loop 32-Zone Addressable Fire Panel, C-TEC XFP501E/CA CAST 1 Loop 16 Zone Addressable Fire Panel and C-TEC ZFP CAST Analogue Addressable Fire Alarm Control Panel.
Documents and quotation
The linked file is the single-sheet C-TEC BF362 installation instruction (DFU3620000 Rev 1), the manufacturer’s own document. Before ordering confirm the panel type, the barrier and detector certification, and the zone loading; see also the C-TEC CFP708-4 conventional panel and other fire and gas logic controllers. Seven Star LLC, an independent supplier in Muscat, will prepare a quotation from your project requirements.
Datasheets & Documents
- Manual C-TEC BF362 conventional fire panel barrier interface installation instructions (DFU3620000 Rev 1) Download
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About brand
C-TEC is the trading name of Computionics Limited, a British manufacturer of life safety electronics based in Wigan, Greater Manchester. The company was founded in 1981 and designs and builds its fire alarm panels, call systems and evacuation equipment at its own UK factory. It describes itself as the UK's largest independent manufacturer in this field and sells into more than 70 countries.
Seven Star LLC, an independent supplier in Oman, lists C-TEC panels and detectors such as the XFP501/CA single loop addressable fire panel, the CP416 CAST-PRO addressable optical smoke detector and the CFP708-4 eight zone conventional fire alarm panel.
C-TEC company profile
| Founded | 1981, as Computionics Limited |
|---|---|
| Headquarters | Challenge Way, Martland Park, Wigan, United Kingdom |
| Ownership | Independent, privately owned |
| Manufacturing | Designed and manufactured at its own UK facility in Wigan |
| Product families | CAST and ZFP addressable fire alarm panels, conventional fire panels, EVAC-ALERT evacuation alert systems, Hush residential fire system, nurse and disabled toilet call systems, refuge and hearing loop systems, power supplies |
Milestones
- 1981: Computionics Limited is founded and starts trading as C-TEC.
- 2021: C-TEC marks 40 years as a UK life safety manufacturer.
C-TEC fire alarm families
The manufacturer divides fire systems into conventional and addressable. On the conventional side are the CFP panels in 2 to 8 zones, with ActiV detectors, sounders and call points. On the addressable side, XFP panels cover one or two loops and ZFP panels up to eight, working with C-TEC's own CAST protocol and CAST-PRO devices. Addressable panels are also made for Apollo XP95 and Discovery and for Hochiki ESP devices, so the protocol of a panel must match the detectors on its loop. EN54-4 power supplies, SigTEL refuge systems and EVAC-ALERT panels complete the range.
C-TEC products we list
Ordering C-TEC equipment: what we need
Send the full part number including the suffix after the slash, which separates protocol versions of the same panel. Tell us the detector protocol already on site, the number of loops or zones, and any network or repeater requirement. For projects in the GCC, name the approval the consultant specifies so we request the matching certificates from the manufacturer.
Facts checked against C-TEC company information and UK trade press, October 2026.
Browse C-TEC products by category: Logic Controller, Fire & Gas Detector.
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Frequently Asked Questions
Which panels is the BF362 compatible with?
All C-TEC manufactured conventional fire alarm panels.
How many intrinsically safe detectors can it serve?
Up to 10 intrinsically safe detectors on the zone, plus any number of manual call points.
Does the BF362 include the Zener barrier?
No. The unit is connected to a Zener barrier, which is a separate item.
How are wiring faults shown?
Open and short circuit faults on the hazardous side appear as open circuit faults at the fire panel.
What supply does it need?
An auxiliary 24 V supply from the fire panel, with a quiescent current of 2.8 mA at 30 V.
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