Addressable Detection
Morley 22051TLEI-26 Smoke/Thermal/IR + Isolator
- integral_isolator
- with isolator
- Weight
- 102g (inc base)
- Height
- 63mm installed in B501AP base
- Diameter
- 102mm installed in B501AP base
- max_wire_gauge_for_terminals
- 2.5mm 2
- operating_voltage_range
- 15 to 32Vdc
- maximum_standby_current
- 200 µ A at 24Vdc (no communications) 300 µ A at 24Vdc ( LED blink enabled, once every 5s)
Overview
What it is and how it fits the system.
The Morley 22051TLEI-26 is a multi-criteria detector combining smoke, thermal and infrared sensing with a built-in isolator in a white housing. The integral isolator preserves loop continuity if a wiring fault occurs, while the three sensing channels widen fire detection coverage on addressable systems.
Technical overview
The 22051TLEI-26 is a white-housed Morley multi-criteria detector that reads three fire signatures at once, drawing on photoelectric smoke, heat, and infrared channels with an isolator built in. Its integral isolator holds the loop's continuity should a wiring fault arise, and together the three channels broaden the fire-detection reach across an addressable system.
Its integral isolator function maintains circuit integrity if a fault occurs, allowing continued operation of other devices on the loop. The three sensing channels—photoelectric, thermal, and infrared—provide enhanced discrimination and responsiveness across varied fire signatures compared to single-sensor alternatives.
Compatibility is specified for installation in the B501AP base, as noted in the supported configuration. For detailed physical connection procedures, users must consult the official installation manual referenced in the wiring guidance.
Specifications
Full technical data for this part.
| integral_isolator | with isolator |
|---|---|
| Weight | 102g (inc base) |
| Height | 63mm installed in B501AP base |
| Diameter | 102mm installed in B501AP base |
| max_wire_gauge_for_terminals | 2.5mm 2 |
| Colour | White |
| Material / Construction | PC/ABS |
| operating_voltage_range | 15 to 32Vdc |
| maximum_standby_current | 200 µ A at 24Vdc (no communications) 300 µ A at 24Vdc ( LED blink enabled, once every 5s) |
| led_current | 3.5mA at 24Vdc |
| temperature_range | -30°C to +70°C |
| Relative Humidity | 10 to 93% relative humidity (non-condensing) |
| addressable_systems | System Sensor Protocol Analogue Addressable Field Devices |
| sensitivity_alarm_level_1 | Low false alarm resistance, high photoelectric only sensitivity. 1%/ft smoke |
| sensitivity_alarm_level_2 | Medium false alarm resistance, medium photoelectric only sensitivity. 2%/ft smoke |
| sensitivity_alarm_level_3 | Standard false alarm resistance, low photoelectric only sensitivity. 3%/ft smoke |
| sensitivity_alarm_level_4 | High false alarm resistance, low photoelectric only sensitivity. 3%/ft smoke |
| sensitivity_alarm_level_5 | Very high false alarm resistance, low photoelectric only sensitivity. 3%/ft smoke |
| sensitivity_alarm_level_6 | Heat sensor - Class A1R |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know