C-TEC C4403A1R Rate of Rise Heat Detector
Overview
The C-TEC C4403A1R is a high-quality Type A1R static and rate of rise heat detector designed for use in conventional fire alarm systems. Manufactured by C-TEC in the UK, it offers dependable detection performance, recognised third-party certification and competitive value for professional fire detection applications.
Third-party certified to EN54-5 by Intertek, the detector is engineered for reliable response to rapidly increasing heat conditions and fixed temperature thresholds. Its two ultra-bright red LED indicating strips provide clear 360° local alarm visibility, while its broad operating voltage range and compatibility with multiple ActiV bases make it suitable for a wide range of system designs.
Key Features
- Type A1R heat detector: designed to respond to rapid temperature rise and static heat thresholds.
- EN54-5 certified: third-party certified by Intertek for recognised compliance.
- UK manufactured: produced by C-TEC for dependable quality and consistency.
- Wide operating voltage: suitable for 9 to 33V DC system operation.
- 360° LED visibility: two 8 mm x 2 mm ultra-bright red LED strips provide clear local indication.
- ActiV base compatibility: compatible with C4408D diode, C4408 non-diode and C4408R relay bases.
Product Highlights
The C4403A1R provides reliable heat detection for installations where optical smoke detection may not be the preferred technology. It is suitable for monitored 2-wire, polarity-sensitive fire alarm circuits and offers stable alarm performance with low quiescent current, practical reset characteristics and support for remote LED indication through the appropriate ActiV base.
With a fixed response range between 54°C and 65°C, robust white polycarbonate construction and an operating temperature range from -20°C to +70°C, the detector is designed for dependable performance in a variety of commercial and industrial indoor applications.
Technical Specification
| Parameter | Specification |
| Model / Description | C4403A1R Type A1R Rate of Rise Heat Detector |
| Detector Type | Static / Rate of Rise Heat Detector |
| Application Temperature Response | Goes into alarm condition on rapid temperature rise between 54°C and 65°C |
| Fixed Temperature Response | 54°C min., 65°C max. |
| Supply Wiring | 2-wire monitored, polarity sensitive |
| Supply / Operating Voltage | 9 to 33V DC |
| Quiescent Current | 30 µA @ 24V DC |
| Switch-on Surge Current | 120 µA for 3 seconds |
| Alarm Voltage | 6 to 33V DC |
| Alarm Current | 19 mA @ 12-33V DC; 11 mA @ 9V DC; 2.5 mA @ 6V DC |
| Minimum Operating Voltage | 6V DC |
| Minimum Alarm Holding Current | 2.5 mA |
| Minimum Voltage for LED Indication | 6V DC minimum |
| Alarm Reset Voltage | Less than 1V DC |
| Alarm Reset Time | More than 0.5 seconds |
| Remote Output | Current source to the negative line, short-circuit protected, available via ActiV base. Max voltage 2.7V DC |
| Operating Temperature Range | -20°C to +70°C |
| IP Rating | IP42 |
| Dimensions (Without Base) | 102.2 mm diameter, 37 mm depth |
| Dimensions (With Base) | 102.2 mm diameter, 57.5 mm depth |
| Weight | Detector: 99 g; Base: 55 g |
| Detector Material | White polycarbonate casing rated to UL94 V-2 with nylon parts |
| Base Material | White polycarbonate rated to UL94 V-2 with bright tin plated steel terminals fitted with nickel plated steel screws and washers |
| Certification | EN54-5 (Intertek) |
| Compatible Detector Bases | C4408D Diode Base; C4408 Base; C4408R Relay Base |
For project pricing, base selection and system integration details, please contact our sales team.
