Schego M2k3 Coil 240v/50hz

Description

Schego M2k3 Coil 240v/50hz — Mains drive coil for the Schego M2K3 single-outlet air pump

The M2K3 is the pump that gets used for fish transport tubs, bait tanks and busy fish rooms, and its coil is what keeps the stroke going. Schego M2k3 Coil 240v/50hz (SKU: SH741) is the replacement coil for the Schego M2K3 membrane air pump, rated for 240 V mains at 50 Hz. The coil is the electromagnet inside the pump: current through it moves the magnetic arm, and the arm moves the diaphragm. If the coil fails, the pump has power but no movement, so there is no hum, no vibration and no air from the outlet.

Retailer specifications for the M2K3 give 300 L/h with no head and 260 L/h at 0.5 m, a maximum pressure of 2.0 m water column, 46 dBA, a single outlet, a manual screw regulator and a case of about 170 × 75 × 60 mm. Schego also makes deluxe versions of the M2K3 with a potentiometer for air volume and an on/off switch. One retailer lists a 12 V DC version of the M2K3 at 600 mA, so the voltage of the pump should be confirmed from its label before this 240 V coil is ordered; the coil is for mains-powered pumps only. The M2K3 coil is a different part from the WS3 coil (SH931) even though the two pumps share many spares. Anyone fitting it should leave the pump unplugged throughout; the coil carries mains voltage and the work suits someone comfortable with appliance repairs. The maker does not publish winding data.

Usage & Application

When to Use

• Dead M2K3: Mains power is present but the pump is silent and still.
• Fish transport and bait tanks: Pumps that are switched on and off often and run in damp places.
• Intact head: The diaphragm and valves are sound, so the drive is the weak link.
• Shop and hatchery use: A spare coil is cheaper than a spare pump where many M2K3s run.

Installation & Replacement Guide

• Check the label: Confirm the pump is a 240 V, 50 Hz M2K3 before opening it.
• Unplug: Pull the mains plug and leave it out until the case is closed.
• Replace the coil: Open the housing, remove the old coil and fit the new one in the same position.
• Test: Close the case, plug in and check the pump starts and delivers air.

Product Specifications & Highlights

Key Features

• 240 V / 50 Hz rating: Intended for mains-powered M2K3 pumps.
• M2K3-specific: Listed separately from the WS3 coil.
• Drive part: The electromagnet that vibrates the arm.
• Heavy-duty pump: The M2K3 is also used in industrial applications, according to retailers.
• Repair option: Returns a silent pump to service without new case or head.

Product Details

• Brand: Schego (Schemel & Goetz, Germany)
• SKU: SH741
• Barcode (GTIN/EAN): 4005256007410
• Product Type: Spare Parts > Air Pump Coil
• Voltage: 240 V, 50 Hz
• Fits: Schego M2K3 air pump (mains version)
• Pump Output: 300 L/h at 0 m; 260 L/h at 0.5 m head
• Companion Parts: Diaphragm set (SH742); air chamber and diaphragm kit (SH743); reed arm (SH745)
• Target Environment: Freshwater and marine aquariums, tubs and bait tanks aerated by a Schego M2K3 pump