MERLIN GERIN Multi9 ID 23538 + OF.S 26923

Merlin Gerin Multi9 ID 40A 4P RCCB with Auxiliary Contact

Description

This is a Merlin Gerin Multi9 ID Residual Current Circuit Breaker (RCCB), part number 23538. It is designed to provide protection against earth leakage faults in electrical systems. This 4-pole unit has a rated current of 40A and a tripping sensitivity of 30mA. It also comes equipped with an OF.S auxiliary contact (part number 26923) for remote monitoring of the breaker’s status. As part of the robust Multi9 range, this device offers reliable performance for industrial and commercial applications.

Specifications

• Manufacturer: Merlin Gerin (Schneider Electric)
• Series: Multi9
• Product Type: Residual Current Circuit Breaker (RCCB)
• Model: ID
• Part Number: 23538
• Rated Current (In): 40 A
• Rated Residual Current (I delta n): 30 mA
• Number of Poles: 4P
• Rated Voltage (Un): 415V AC
• Type: A
• Mounting: DIN Rail
• Included Module: OF.S Auxiliary Contact (26923)

Application

Suitable for use in distribution boards to protect circuits against insulation faults and to provide additional protection against direct contact. Commonly used in commercial buildings, industrial facilities, and workshops.

Country of Origin

Made in Spain.

CO2 Impact

By purchasing this pre-owned component, you are actively participating in the circular economy. The reuse of this device avoids the production of a new one, saving approximately 14 kg of CO2 emissions. This is a significant step towards more sustainable industrial practices.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?

What is the function of the attached OF.S module (part 26923)?

Answer:

The OF.S module is an auxiliary contact that indicates the electrical status (Open/Fault) of the main RCCB. It can be wired into a control or monitoring system to signal when the breaker has tripped.

Question?

Is this RCCB Type A or Type AC?

Answer:

This is a Type A RCCB. The symbol on the label indicates it is sensitive to both sinusoidal AC fault currents and pulsating DC fault currents, offering broader protection than a standard Type AC device.

Question?

Can this Merlin Gerin Multi9 breaker be used with modern Schneider Electric Acti9 busbars?

Answer:

While both are DIN rail mounted, direct compatibility with modern Acti9 busbars is not guaranteed due to potential differences in housing dimensions and terminal alignment. It is recommended to use wiring for connections in mixed-system installations.

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Last Update: Friday, March 13, 2026