KONE Brake Controller Assembly KM50014396G01 KM50014397H01 KM50022850G02

Unlike many electronic boards inside the controller cabinet, a brake controller is rarely replaced during routine maintenance.

In most cases, this assembly is removed only after the brake circuit has already been inspected and the technician needs to determine whether the control module itself is responsible for the fault. The assembly is identified by KM50014396G01, while KM50014397H01 and KM50022850G02 are commonly found on the related PCB or brake module. It is generally supplied as a brake controller assembly for compatible KONE elevator systems.

Don't Disconnect Everything at Once

Before removing the brake module, it is helpful to keep a record of the original installation.

Instead of unplugging every connector immediately, photograph:

• KM50014396G01 assembly label

• KM50014397H01 or KM50022850G02 PCB marking

• connector sequence

• terminal numbers

• brake-module location

• surrounding wiring

• controller cabinet overview

• elevator model

• fault information

• quantity required

These records often save time during reinstallation and help avoid reconnecting cables incorrectly.

The Module May Not Be the Root Cause

Visible damage on the PCB is only one possible reason for replacement.

Before installing another brake controller assembly, technicians should also inspect:

• brake coil resistance

• power supply voltage

• terminal tightness

• controller outputs

• fuse condition

• wiring harness

• grounding connection

• signs of overheating

A wiring fault or damaged brake coil can produce symptoms similar to a failed brake controller. Confirming the external circuit first helps reduce unnecessary replacement.

Frequently Asked Questions

Is KM50014396G01 the complete brake module?

It is generally supplied as a Brake Controller Assembly. The related PCB may carry KM50014397H01, while KM50022850G02 is also associated with the same brake module family.

Is KM50014397H01 the same as KM50014396G01?

No. KM50014396G01 is the assembly reference, while KM50014397H01 is commonly used as the PCB identification printed on the circuit board.

What information is needed before quotation?

Please provide the complete assembly label, PCB number, photos of both sides of the board, connector locations, the controller model and a brief description of the brake-related fault.

Can KM50022850G02 be ordered separately?

Depending on the required replacement level, some suppliers list KM50022850G02 as an associated brake module or PCB. The original part number on the removed assembly should always be checked before ordering.