Schego Optimal/ws2 Coil 240v/50hz

Description

Schego Optimal/ws2 Coil 240v/50hz — Replacement coil for Schego Optimal and WS2 air pumps

When an Optimal or WS2 stops dead, the cause is more often in the drive than in the diaphragm. Schego Optimal/ws2 Coil 240v/50hz (SKU: SH853) is the replacement coil for the Schego Optimal and WS2 air pumps, rated 240 V and 50 Hz. The coil is the electromagnet of the pump: alternating mains current through it makes the arm with the magnet vibrate, and the vibration drives the diaphragm. Schego describes the task of its membrane pumps as supplying fish, marine life and plants with oxygen in 24-hour continuous operation, which is a heavy duty for a coil that is energised all day.

The Optimal 250 is listed at 250 L/h with no head, 5 W, a maximum head of 2.5 m and 39 dBA, with a screw flow regulator. The WS2 is listed at 250 L/h, 5 W and a pressure of at least 2 m of water column, intended for decorative water columns and protein skimmers. Schego’s data gives both a 130 × 70 × 50 mm case, a 1 m cable and a regulator. The coil is a mains-voltage part, so the pump must stay unplugged for the entire repair, and anyone unsure about working inside an appliance should have it done by a technician. If the pump still runs but has lost air, the problem is more likely in the head (kit SH852), the filter felt (SH854) or the reed arm (SH855) than in the coil. Resistance and winding data are not published for the coil.

Usage & Application

When to Use

• Pump will not start: There is no hum, no vibration and no air with power at the socket.
• Burnt-out drive: The coil is the likely fault when head and diaphragm look healthy.
• Skimmer and column pumps: A WS2 running a protein skimmer needs its drive intact.
• Rebuilding rather than replacing: A pump with a good case and head is worth a new coil.

Installation & Replacement Guide

• Disconnect: Unplug the pump from the mains before opening anything.
• Open the case: Remove the cover and the head to reach the coil.
• Swap the coil: Take out the old coil and fit the new one in the same position and way round.
• Check and test: Rebuild the pump and test it with the cover closed.

Product Specifications & Highlights

Key Features

• 240 V / 50 Hz: Matches Australian mains supply.
• Two pump models: Listed for the Optimal and the WS2.
• The drive part: Energises the magnet arm that moves the diaphragm.
• Built for continuous duty: Schego describes 24-hour operation as the pump’s task.
• Keeps the pump alive: Avoids replacing a unit whose other parts are sound.

Product Details

• Brand: Schego (Schemel & Goetz, Germany)
• SKU: SH853
• Barcode (GTIN/EAN): 4005256008530
• Product Type: Spare Parts > Air Pump Coil
• Voltage: 240 V, 50 Hz
• Fits: Schego Optimal and WS2 air pumps
• Pump Case: About 130 × 70 × 50 mm; cable 1 m
• Pump Power: 5 W
• Companion Parts: Air chamber and diaphragm kit (SH852); air filter felt (SH854); reed arm with magnet (SH855)
• Target Environment: Freshwater and marine aquariums and skimmers driven by Schego Optimal or WS2 pumps