1PCS Danfoss EKC331T 084B7105 Unit Controller NEW
$ 681.02
Description
Direct Supply BRAND NEW PARTS Application scenarios : Suitable for refrigeration systems such as small and medium-sized cold storage, commercial refrigerators, and food preservation equipment. It can realize centralized control of core equipment like compressors, evaporator fans, and defrosting devices, and is particularly compatible with systems using common refrigerants such as R134a, R404A, and R507. Core control functions : Multi-equipment linkage control : Supports linkage control of 1 compressor, 1 evaporator fan, and 1 defrosting system. It monitors the storage temperature through temperature sensors (such as NTC or Pt1000), automatically starts/stops the compressor and fan, and triggers defrosting according to preset logic (e.g., timed defrosting, temperature difference defrosting) to ensure refrigeration efficiency and equipment safety. Precise temperature regulation : Adopts a proportional-integral (PI) control algorithm, with a storage temperature control accuracy of ±1℃. It supports a temperature setting range of -50℃ to +10℃ to meet different refrigeration/freezing needs; it also has a temperature deviation alarm function, which outputs an alarm signal through a relay when the temperature is excessive. Protection mechanisms : Integrates functions such as compressor high-pressure/low-pressure protection (requires external pressure switch), motor overload protection, and sensor fault detection (disconnection/short circuit alarm) to prevent equipment damage due to abnormal working conditions; supports setting the minimum downtime of the compressor to avoid frequent start-stop cycles. Defrost management : Allows setting 1-6 timed defrosts per day, with adjustable defrost duration of 0-60 minutes. It supports defrost end temperature detection (to ensure thorough defrosting) and fan shutdown logic during defrosting, applicable to electric heating defrosting or hot gas defrosting methods. Input and output specifications : Temperature input: 1-2 sensor interfaces (compatible with NTC-M 2020 or Pt1000), used to monitor storage temperature and evaporator temperature (for defrost control) respectively. Digital input: 1-2 digital inputs, which can be connected to signals from external pressure switches, door magnetic switches, etc., to realize linkage protection or status monitoring. Output signals: 3 relay outputs (usually SPST, AC250V/5A) to control the compressor, fan, and defrosting device respectively; 1 alarm relay output (AC250V/3A) for abnormal status alarms such as over-temperature and faults. Power supply and environmental parameters : Power supply voltage: AC 230V ±10%, 50/60Hz, with a power consumption of approximately 3VA. Operating environment: Temperature range of -10℃ to +55℃, humidity of 20%-85%Rh (no condensation), protection class IP20. It is suitable for DIN rail mounting in control cabinets (size approximately 120×75×35mm). Configuration and operation : Parameters such as temperature upper/lower limits, defrost cycles, and protection thresholds can be set via panel buttons or dedicated programming tools (e.g., Danfoss Service Tool). It supports parameter locking to prevent misoperation. Equipped with a 3-digit LED digital display for storage temperature and set values, and indicator lights to show operating status (refrigeration, defrosting, alarm, etc.), facilitating on-site monitoring.
Overall, we had a good experience with the seller We purchased item "1PCS NEW ABB Type AX18-30-10-84 Block Type AC Contactor 110V 50Hz" There was a mix up with our tracking number and another customer's tracking number in the beginning, but this was figured out in a timely manner Then the courier service attempted to deliver our package, but it was after our business hours, so they did not deliver the package on the day it was expected Eventually, items received Have not used items yet
Slight mix-up on the quantity of the order but the seller was very responsive and immediately sent the balance of the propellers ordered along with a sincere apology. Mistakes happen and this seller dealt with it like a professional! I would gladly do business with plc-electric again in the future. Thank you!
Quality new condition perfect value excellent appearance identical this guy got the colour right for me not like some some don’t care and they try to palm you up with anything this guy didn’t he supplied me with what I asked for and I received what I asked for A1 to this guy
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