Main Switch 15,8A Schurter Amazonas

Switch 411117 is the main switch of the Kranzle pressure washer, manufactured by Schurter. In addition to switching the washer on and off, it contains a built-in overcurrent protection with a threshold of 15,8A. When motor current draw exceeds this value, the trip mechanism permanently deactivates the switch – with no reset function. Activation of the protection means the entire switch must be replaced.

Application

The switch is mounted in the control panel or housing of the washer as the main component for engaging the motor power supply. The built-in 15,8A overcurrent protection operates in the background – during normal washer operation the motor current stays below the threshold. Under motor overload (seized pump, dry running, damaged bearings) the current exceeds 15,8A and the trip permanently deactivates the switch.

Replaced when mechanically damaged, unresponsive to switching, or after the built-in overcurrent protection has tripped.

Symptoms – when to replace

• The washer does not start despite an intact mains supply and no other faults – the switch does not close the circuit when toggled.
• The switch tripped after motor overload and does not restore power – the built-in protection has permanently deactivated the switch.
• Mechanical damage to the housing – cracked rocker, blocked movement or loose switch in the panel slot.
• Burnt or melted electrical terminals – the result of arcing from loose connections or repeated overloads.
• The switch closes the circuit in one position only, or has no distinct snap point – worn mechanism.

How to select the right part

The 15,8A rated current is a critical parameter – a switch with a higher threshold will not trip at the overload current that the original protects against; one with a lower threshold will trip at the normal motor operating current. Identify by reference number 411117 and the 15,8A rating.

When ordering a replacement, confirm an identical rated current, housing type and compatible terminal type. A switch with different housing dimensions may not fit the mounting aperture in the washer panel.

Before replacing the switch, make sure the cause of the trip is not a permanent motor overload – replacing the switch without removing the cause will result in the new component tripping again.

Compatibility

Main switch with built-in overcurrent protection for Kranzle pressure washers. Rated current: 15,8A. Manufacturer: Schurter. Requires replacement after protection trips – no reset function. Verify the exact compatibility range by reference number 411117.

[faq]

The washer does not start – how to tell whether the switch is the cause and not another component?|Check circuit continuity across the switch terminals with a multimeter, with the switch toggled to the on position – a functioning switch should show continuity. No continuity unambiguously points to the switch. If continuity is correct, look for the cause further along – in the supply leads, start capacitor or motor winding. Activation of the built-in overcurrent protection permanently blocks the switch even without any visible external damage.

How to determine whether the protection trip was caused by a momentary overload or a permanent motor fault?|After replacing the switch, measure the current drawn by the motor under normal operation with the gun open – it should be clearly below 15,8A. If the current is close to or exceeds the threshold during normal operation, the motor has a permanent problem: worn bearings generating excessive mechanical resistance, damaged winding, or a pump requiring excessive force. Replacing the switch without measuring operating current is working blind.

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