Mitsubishi Push-Button Expansion Board ZLHB-LAX6 P235041C121G96

Mitsubishi Push-Button Expansion Board ZLHB-LAX6 P235041C121G96 is used in Mitsubishi elevator car operating panel and push-button command expansion applications.

This board is usually related to COP button signal expansion, cabin command input, or additional push-button connection inside the elevator operating panel system. In the elevator spare parts market, it may also be searched as:

• Mitsubishi Button Expanding Board
• Mitsubishi Push-Button Expansion Board
• Mitsubishi COP Button Expansion Board
• Mitsubishi Car Button Expansion PCB
• Mitsubishi Elevator Button Board
• Mitsubishi Elevator PCB Board

The main model references for this page are:

• ZLHB-LAX6
• P235041C121G96
• P235041C121G98
• ZLHB-LAX8

Market product information shows ZLHB-LAX6, P235041C121G96 / G98, and ZLHB-LAX8 together in a Mitsubishi button expanding board listing. These references are useful for search coverage and quotation confirmation, but the final replacement should still be checked by the old board label, connector layout, and COP configuration.

COP Button Expansion Application

This board should be understood as a button expansion or command expansion PCB, not a normal single push button.

In elevator maintenance and spare parts purchasing, it may be used when the car operating panel needs additional button signal handling or when the original COP button expansion PCB is damaged.

It may be checked when there are problems such as:

• some car buttons not responding
• COP command input abnormality
• button signal expansion failure
• intermittent car call registration
• button indicator signal problem
• connector or wiring issue inside the COP
• visible PCB damage

These symptoms may also be caused by the push buttons, COP wiring harness, connector terminals, power supply, or communication board. The complete COP signal path should be checked before confirming the expansion board fault.

What Buyers Should Confirm

Before ordering Mitsubishi Push-Button Expansion Board ZLHB-LAX6 P235041C121G96, please check:

• Complete ZLHB-LAX6 marking
• P235041C121G96 or P235041C121G98 marking if visible
• Whether the old board shows ZLHB-LAX8
• Front and back photos of the PCB
• Connector quantity and direction
• COP installation position
• Old car operating panel photo
• Existing button fault description

This information helps confirm whether the required item is ZLHB-LAX6, ZLHB-LAX8, or another Mitsubishi COP button expansion board version.

Practical Replacement Notes

Do not select this board only by appearance.

Mitsubishi COP expansion boards may look similar, but the supported button quantity, connector layout, signal definition, and board version may be different.

Before installation, technicians should compare the old and new board carefully and check the button harness, connector oxidation, power supply condition, and related COP communication circuit.

For overseas buyers, sending clear photos of the original ZLHB-LAX6 / P235041C121G96 board before shipment is the safest way to reduce wrong supply.

FAQ

Is ZLHB-LAX6 the same as P235041C121G96?
They are commonly listed together in Mitsubishi button expanding board information. For actual replacement, both the ZLHB model and P235 part number should be checked on the old board.

Is ZLHB-LAX8 interchangeable with ZLHB-LAX6?
ZLHB-LAX8 appears as a related model, but it should not be treated as an automatic replacement. The connector layout, COP configuration, and old board label should be confirmed first.

Is this board used for COP buttons or landing buttons?
It is more suitable to describe it as a COP button expansion board or car button expansion PCB. If it is installed in another panel position, the old board photos should be used for confirmation.