ALCO PS1-A3R 4366600 Pressure Switch Control -0.5 to 7 Bar R 1/4 OEM New Surplus

Product Overview The ALCO Controls / Emerson Climate Technologies PS1-A3R (PCN 4366600) is a single-stage, heavy-duty adjustable refrigeration pressure controller designed for critical safety cut-out, compressor control, and cycling in HVAC and industrial refrigeration equipment. Sourced through maritime recycling channels at the Alang Ship Breaking Yard, this component offers authentic marine-grade construction, robust durability, and genuine OEM reliability engineered for extreme operating demands.

Item Specifications

• Brand: ALCO Controls / Emerson Climate Technologies

• Type: Adjustable Single Pressure Control / Refrigeration Controller

• Model & MPN: PS1-A3R

• PCN Number: 4366600

• Application: Commercial, Marine HVAC & Industrial Refrigeration Systems, Low/High Safety Pressure Cut-Out

• Country / Region of Manufacture: Czech Republic

• Physical Condition: New Surplus (Unused Old Stock)

• Pressure Operating Range: -0.5 to 7 bar (-15 inHg to 100 psig)

• Factory / Differential Setting: 3.5 / 4.5 bar (50 / 65 psig), Cut in minus Diff is Cut out

• Maximum Allowable Working Pressure (PS): 22 bar (320 psig)

• Factory Test Pressure (PT): 25 bar (360 psig)

• Operating Temperature Limits (TS): -50 to +70 deg C

• Switch Mechanism & Terminals: 1 x SPDT Contact System, Screw Terminals marked 1, 2, 4

• Electrical Contact Rating: 24 FLA / 144 LRA at 115 - 230 VAC; Pilot Duty A300 - 10A / 220V AC15

• Wiring Requirements: No. 14 to 10 AWG 60/75 deg C copper wires only; Terminal Torque 1.2 Nm (10.5 in-lb)

• Pressure Port Connection: R 1/4 inch male thread with factory protective dust plug

• Certifications & Approvals: CE Marked, UL Listed US Refrigeration Controller (File E 85974, Type 71 B 2), GOST/EAC

• Dimensions & Weight: Approximately 101 mm x 86 mm x 42 mm; Unit weight ~0.35 kg (~0.45 kg with box and mounting kit)

Condition & Inspection Notes

• Condition Status: New Surplus

• Detailed Forensic Assessment:

  • Micro Defects: None found on the device. Plastic housing, dial faceplate, contacts, scale calibrations, and internal toggle arms are in mint condition. The exterior original cardboard box exhibits notable shelf storage wear, moisture marks, and warehouse ink notation.

  • Damage Scan: Zero cracks, chips, broken casing tabs, or thread strippings.

  • Usage Markers: None. Screw terminals 1, 2, and 4 show zero driver slippage or clamping indentations. Mounting bracket holes on the zinc chassis show zero installation bolt circles. Factory plastic protective cap remains fitted on the brass pressure fitting.

• Visual Guarantee: The provided images form an integral part of this listing description. You will receive the exact item shown in these high-resolution photos.

• Packaging: Includes original factory box (shelf-worn) and an original unopened accessory packet containing mounting screws and grounding hardware.

• Handling Time: 1 to 2 business days.

• Carriers: DHL Express / FedEx Express.

• Shipment Origin: India.

• Import Duties: Custom duties and import taxes are the buyer's responsibility.

Terms & Legal Disclaimer

• Disclaimer: S V EXIM is an independent seller of surplus components and is not an authorized distributor or affiliated representative of the original manufacturer.

• Closing Statement: Thank you for choosing S V EXIM.

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