The Kidde KE-DP3121B is an intelligent addressable dual optical/heat multisensor detector with a built-in loop short-circuit isolator, from the Kidde Excellence Series, finished in graphite black. It combines forward and backward optical light scatter with heat sensing, with 11 selectable alarm levels, and fits the Excellence Series standard base. It is designed for Kidde Commercial Excellence fire systems and is certified to EN 54-5, EN 54-7, EN 54-17 and EN 54-29.
Key features
- Black finish for interiors where a white detector would stand out
- Integrated loop short-circuit isolator keeps the loop working during a single short circuit
- Short-circuit isolation on the remote indicator output
- Nuisance alarm, steam and dust discrimination for strong false-alarm immunity
- Static and rate-of-rise temperature detection
- Regular automatic self-testing
- Tri-colour indicators for alarm, pre-alarm, isolation, fault, ItsMe and communications, visible through 360°
- Mechanical rotary switch addressing
- On-board event log for diagnostics
- All sensitivity levels EN 54 certified
Technical specifications
- Compatibility: Kidde Commercial Excellence systems; Excellence series standard base
- Alarm levels: 11 (selectable sensitivity)
- Power supply: loop powered, 17 to 29 VDC
- Communication voltage: 4 to 11 V pulsed
- Current consumption: 200 µA quiescent, 4.75 mA alarm (at 24 VDC)
- Detection: forward and backward optical light scatter plus heat
- Particle sensitivity range: 0.1 to 0.25 dB/m ±20%
- Alarm temperature: +54°C minimum, +70°C maximum
- Coverage area: up to 57 m²
- Installation height: up to 7.5 m (standard), up to 9 m with reduced spacing and risk assessment
- Remote indicator output: less than 8 mA
- Isolator: negative line break; isolation and reconnect voltage 14 to 15.5 VDC; switch current 1.05 A continuous, 1.4 A pulsed; up to 32 devices between isolators
- Dimensions: 100 x 54 mm (diameter x height)
- Weight: 124 g
- Colour: graphite black (RAL 9011); PC/ABS body, brass contacts
- Operating temperature: −10 to +55°C; storage −30 to +75°C
- Relative humidity: 10 to 93% non-condensing
- Environment: indoor, IP20
- Standards: EN 54-5, EN 54-7, EN 54-17, EN 54-29 (CPR certified)
