Model 5451EIS is an intrinsically safe rate of rise detector with fixed temperature alarm. It uses stateof-the-art dual thermistor technology to provide maximum sensitivity. This detector is designed to afford
open area protection and is for use in hazardous areas where potentially explosive atmospheres are likely
to arise (confirm classification of equipment required with your responsible authority). Model 5451EIS
detectors are designed to be used with compatible panels only.
Each detector has remote LED annunciator capabilility as well as two LEDs to provide a local visual
indication of detector status. Once the detector senses a fire, it latches in alarm and remains in this
condition until it is reset by a momentary power interruption.
Model 5451EIS rate of rise detectors include a tamper feature that prevents removal from their mounting
base (if enabled) without the use of a tool. In addition, these detectors can be easily tested by activating
an internal reed switch with a test magnet.
- Sleek low profile design
- Low current draw
- Remote LED option
- Simple plug-in installation
- Compatible with standard B401mounting base
- Built-in test switch
- Tamper-resistant
- Suitable for use in Zone 0
- Approved for use with Zener safetybarriers or galvanic isolators
- BASEEFA approval to EEX ia IIC T5
- Tested and approved to EN54-5, grade 1
Electrical
Operating Voltage: 15 to 32VDC
Standby Current (maximum): 100μA at 24VDC
Latching alarm reset by momentary power interruption
Environmental
Operating Temperature Range: –10°C to 43°C
Sensitivity 60°C
Operating Humidity Range: 10% to 93% Relative Humidity
IP Ratings: On application
Intrinsic Safety Rating: EEx ia IIB T5
Mechanical
Height: 54mm
Diameter: 104mm
Weight: 80g (excluding base)
Product Range
Compatible bases: B401, B401DG