LV429345

What type of component is this?

This is a standard early-break auxiliary contact designed to provide a control or indication signal linked to the position of a compatible circuit breaker's rotary handle.

What does early-break operation mean?

Early-break operation means the auxiliary contact changes state before the circuit breaker's main contacts complete their opening sequence. This can be used to initiate control actions or disconnect an auxiliary circuit in advance.

How many contacts does it provide?

The LV429345 provides one changeover contact, allowing a control circuit to switch between normally open and normally closed contact paths.

Which circuit breaker ranges are compatible with this contact?

It is intended for selected Schneider ComPact NSX100, NSX160 and NSX250 AC and DC circuit breakers. It is also listed for compatibility with appropriate PowerPact H and J devices.

Where is the auxiliary contact fitted?

The contact is intended for use with the rotary handle position of a compatible circuit breaker. The precise fitting arrangement should be checked against the breaker frame and handle configuration.

What is the conventional free-air thermal current rating?

The conventional free-air thermal current, identified as Ith, is 6 A.

What operational current ratings does it support for AC control circuits?

For AC-12 applications, the contact is rated at 6 A across listed voltages from 24 V to 690 V AC. AC-15 ratings vary by voltage, including 6 A at 24 V and 48 V AC, 5 A at 110 V AC, 4 A at 220–240 V AC, 2 A at 380–440 V AC, 1.5 A at 480 V AC and 0.1 A at 660–690 V AC.

What operational current ratings does it support for DC control circuits?

For DC-12 applications, ratings include 6 A at 24 V DC, 2.5 A at 48 V DC, 0.6 A at 110 V DC and 0.3 A at 250 V DC. For DC-14 applications, ratings include 1 A at 24 V DC, 0.2 A at 48 V DC, 0.05 A at 110 V DC and 0.03 A at 250 V DC.

What is the minimum switching load?

The specified minimum load is 100 mA at 24 V DC. The connected control circuit should meet this value to help ensure dependable contact operation.

What is the mounting method?

The auxiliary contact uses a drawout mounting arrangement within the designated accessory position of a compatible circuit breaker assembly.

What are common applications for this component?

Typical applications include breaker-position signalling, electrical interlocking, control-sequence initiation and switching an auxiliary circuit before the main breaker contacts open.

Can it switch both AC and DC loads?

Yes. LV429345 has specified ratings for AC-12, AC-15, DC-12 and DC-14 utilisation categories. The permitted current depends on the circuit voltage and load category.

Is it compliant with European substance restrictions?

The product information identifies the contact as compliant with the EU RoHS Directive, free from listed REACH substances of very high concern, mercury-free, free from toxic heavy metals and PVC-free.

How should this component be disposed of?

Within European Union markets, it should be handled through the appropriate collection route for waste electrical and electronic equipment rather than placed in general household or commercial waste.