The System Sensor 52051E-26 is a white Series 200 Advanced analogue addressable heat sensor without an isolator, giving a 58°C fixed-temperature alarm (EN 54-5 Class A1S as supplied). It uses a low-mass thermistor and microprocessor for fast, linear temperature sensing, and its thresholds can be configured from the panel through the Series 200 Advanced protocol. It requires a B501AP base (sold separately).
Key features
- 58°C fixed temperature, Class A1S
- Series 200 Advanced protocol with panel-configurable heat thresholds
- Tri-colour LED offering red, green and amber indication
- Rotary decade address switches
- Mechanically and electrically backwards compatible with Series 200 Plus devices
- Meets WEEE and RoHS requirements
Technical specifications
- Heat detection class: A1S, 58°C fixed temperature
- Operating voltage: 15 to 32 V DC
- Maximum standby current: 200 µA at 24 V DC (no communications); 300 µA at 24 V DC (LED blink enabled once every 5 s)
- LED current at 24 V DC: red 3.5 mA, green 7.0 mA, yellow 10.5 mA
- Remote output: 22.5 V DC / 10.8 mA at 24 V DC
- Temperature range: -30°C to +80°C (do not install where normal ambient exceeds 50°C)
- Humidity: 10 to 93% RH non-condensing
- Height: 61 mm installed in B501AP base; diameter: 102 mm
- Weight: 88 g (excluding base)
- Material: PC/ABS; colour: white
- Compatible bases: B501AP series, B500 series
