This product is part of the Modicon M171/M172 range, an offer of controllers for HVAC solutions. This controller offers 2 discrete inputs with sink or source (positive/negative) discrete input logic. The rated supply voltage ranges from 100V to 240V, ±10% AC. It is an IP20 rated product. Its dimensions are 74mm (width) x 76mm (depth) x 32mm (height). It weighs 0.164kg. The main application of this module is HVAC and pumping solution. This product is certified by CE, CURus, CSA and EAC. It meets EN/IEC 60730 standard. It is suitable for DIN rail mount. Modicon M171/M172 benefits maximize profitability and energy efficiency by using scalable automation control with the Modicon M171/M172. Modicon M171/M172 logic controllers and intuitive software EcoStruxure Machine Expert - HVAC are designed for maximizing profitability and energy efficiency. Specifications Main Range of produc Modicon M171/M172 Product or component type Controller Product specific application HVAC and pumping solution variant Programmable Total inputs/outputs 22 Discrete input number 6 Discrete output number 1 open collector 3 relay outputs SPST with same common 2 relay outputs SPST with independent common Discrete output current 2 A relay Analogue input number 2 configurable 3 analog input NTC Analogue output number 2 PWM/PPM 3 voltage 0...10 V Complementary Number of port 1 LAN expansion bus 1 RS485 - screw terminal block Modbus serial link) Input/output number 5 analog output 6 digital input 5 analog input 6 digital output Discrete input logic Sink or source (positive/negative) contacts usage Volt-free contacts Analogue input type Voltage 0...5 V ratiometric) voltage 0...10 V NTC temperature probe - 50...100 °C 0.1 °C current 0...20 mA/4...20 mA voltage 0...1 V Sensor power supply 12 V DC 85 mA 5 V DC 20 mA [Us] rated supply voltage 12...24 V +/- 10 % AC 24 V +/- 10 % DC Power consumption in W 4 W Realtime clock Built-in -4…131 °F (-20…55 °C) Display type Four 7-segment display units Overvoltage category II Local signalling 6 LEDs red) 5 LEDs green) Programmable 7 LEDs amber) mounting support Flush mounting Width 2.91 in (74 mm) height 1.26 in (32 mm) Depth 2.99 in (76 mm) Net weight 0.36 lb(US) (0.164 kg) Environment Directives 2006/95/EC - low voltage directive 86/188/EEC - physical agents (noise) directive Standards EN/IEC 60730 product certifications CSA EAC CE cURus Ambient air temperature for operation -4…131 °F (-20…55 °C) UL 60730-1 Ambient air temperature for storage -40…185 °F (-40…85 °C) Relative humidity 10…90 % non-condensing IP degree of protection IP20 Pollution degree 2