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Siemens 3WL9111-0AE12-0AA0 Undervoltage Release with Delay (110-127V AC/DC)

Siemens 3WL9111-0AE12-0AA0 Undervoltage Release with Delay (110-127V AC/DC).

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ManufacturerSiemens

Part number3WL9111-0AE12-0AA0

Voltage 110-127V AC/DC (50/60Hz)

Type Undervoltage Release with Delay

For use with Siemens 3WL Circuit Breakers

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CAGE: 9NK75

Delayed undervoltage trip Wide voltage range (110-127V AC/DC) Prevents nuisance tripping Compatible with Siemens 3WL breakers Controlled protection

Product description

The Siemens 3WL9111-0AE12-0AA0 is an undervoltage release accessory for Siemens 3WL series circuit breakers that incorporates a delay function. It operates within the 110-127V AC/DC voltage range (50/60Hz). This version allows for a controlled delay before tripping the circuit breaker, providing flexibility in systems sensitive to momentary voltage dips.

This delayed undervoltage release is suitable for applications where brief voltage sags should not immediately trigger a shutdown, but sustained undervoltage conditions must be addressed. It's beneficial in industrial automation, process control, and power distribution where precise timing of protective actions is necessary. The delay feature helps prevent nuisance tripping.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3WL9111-0AE12-0AA0 undervoltage release. We are dedicated to supplying quality components to keep your operations running smoothly. Choose Stanlo Automation for reliable Siemens circuit breaker accessories.

Technical specifications

Voltage	110-127V AC/DC (50/60Hz)
Type	Undervoltage Release with Delay
For use with	Siemens 3WL Circuit Breakers

Common applications

Industrial control systems

Power stabilization

Motor protection

Automated manufacturing

Process control

Compatible systems

Siemens 3WL Circuit Breakers

Also known as

Siemens 3WL delayed undervoltage trip 3WL9111-0AE12-0AA0 accessory

Replaces / compatible with

This undervoltage release accessory for Siemens 3WL circuit breakers includes a delay function, allowing for controlled tripping in response to sustained voltage drops.

Technical note

Expert tip

The built-in delay mechanism of the 3WL9111-0AE12-0AA0 allows for selective tripping, distinguishing between brief power sags and critical sustained undervoltage events.

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Frequently asked questions

What is the primary difference between the 3WL9111-0AE04-0AA0 and 3WL9111-0AE12-0AA0 Siemens undervoltage releases?

The main difference is that the 3WL9111-0AE04-0AA0 provides instantaneous tripping upon undervoltage, while the 3WL9111-0AE12-0AA0 includes a delay feature, allowing for a controlled response to voltage drops.