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| Page View 5924 |
| Product Information : |
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| Product Name: |
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RDF302 SIEMENS Flush-mount room thermostat for rectangular conduit box with Modbus communications, 2-/4-pipe fan coils or DX type equipment |
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| Product Category: |
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ผลิตภัณฑ์เครื่องทำความร้อน, ความเย็น, อุณหภูมิ
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| Product Sub-Category: |
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แอร์ - อุปกรณ์และอะไหล่
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| Brand: |
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SIEMENS |
| Product Type : |
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เครื่องมือ, เครื่องจักรและอุปกรณ์
สินค้า, ผลิตภัณฑ์
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| Short Description : |
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RDF302 S55770-T238 Flush-mount room thermostat for rectangular conduit box with Modbus communications, 2-/4-pipe fan coils or DX type equipment
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Flush-mount room thermostat for rectangular conduit box with Modbus communications, 2-/4-pipe fan coils or DX type equipment
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Technical data
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Operating voltage
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AC 230 V
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Power consumption
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7 VA
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Setpoint setting range
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5...40 °C
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Switching differential
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0.5…6 K
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Communication
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Bus: Modbus RTU (RS 485)
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Analog inputs, number
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2
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Relay outputs
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Fan: N.O. contacts, non-floating , Valve: N.O. contacts, non-floating
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Relay outputs, number
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5
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Relay output, switching voltage
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AC 230 V
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Relay output, switching current
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5 (2) A
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Type of fixing
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Recessed rectangular conduit box BS4662 (ARG71) with fixing centres of 60.3 mm
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Degree of protection
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IP30
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Dimensions (W x H x D)
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86 x 86 x 57 mm
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Made by
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SIEMENS
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Type
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RDF302
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Stock no.
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S55770-T238
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RDF302 Flush-mounted room thermostats with RS485 Modbus communications
For 2-pipe, 2-pipe with electrical heater, and 4-pipe fan coil units
For use with compressors in DX type equipment
· RS485 communicative interface in Modbus RTU slave mode
· Backlit display
· 2P / PI / P control
· Outputs for on/off or 3-position control
· Outputs for 3-speed or 1-speed fan
· 2 multifunctional inputs for keycard contact, external sensor, etc.
· Operating modes: Comfort, Economy and Protection
· Automatic or manual fan speed control
· Automatic or manual heating/cooling changeover
· Minimum and maximum limitation of room temperature setpoint
· Control depending on the room or the return air temperature
· Adjustable commissioning and control parameters via local HMI or RS485
Modbus
· Mounting on recessed square conduit box, 60.3 mm fixing centers
· AC 230 V operating voltage
· User and parameter settings can be retained or restored with power loss
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