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Siemens 3RT2627-1NP35 SIRIUS Capacitor Contactor - 25kVAr, 200-280V AC/DC

Siemens 3RT2627-1NP35 capacitor contactor with integrated varistor.

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ManufacturerSiemens

Part number3RT2627-1NP35

Part Number 3RT2627-1NP35

Manufacturer Siemens

Rated Reactive Power 25 kVAr (400V AC, AC-6b)

Poles 3-pole

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AC-6b rated for capacitor switching Integrated precharging resistors Integrated varistor for surge protection Wide AC/DC coil voltage range 1 NO + 2 NC auxiliary contacts S0 size

Product description

The Siemens 3RT2627-1NP35 is a versatile capacitor contactor from the SIRIUS 3RT26 series, designed for AC-6b applications. It handles 25 kVAr at 400V and features a broad 200-280V AC/DC coil voltage range with an integrated varistor for surge protection. This 3-pole contactor includes 1 NO and 2 NC auxiliary contacts, with screw terminals for secure connection and an S0 size.

This contactor is engineered to manage the high inrush currents characteristic of switching capacitor banks. It utilizes precharging resistors, activated by leading auxiliary contacts, to limit the peak charging current. The integrated varistor provides an additional layer of protection against voltage spikes, enhancing operational reliability and extending component life.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RT2627-1NP35. We are dedicated to providing quality components and dependable service to meet your automation needs.

Technical specifications

Part Number	3RT2627-1NP35
Manufacturer	Siemens
Rated Reactive Power	25 kVAr (400V AC, AC-6b)
Poles	3-pole
Control Voltage	200-280V AC/DC, 50/60 Hz
Auxiliary Contacts	1 NO + 2 NC
Integrated Varistor	Yes
Terminal Type	Screw Terminal
Size	S0

Common applications

Reactive power compensation

Capacitor banks

Industrial power systems

Automation control panels

Systems requiring surge protection

Compatible systems

Compatible with various control systems and designed for capacitor switching applications where surge protection is beneficial.

Also known as

Siemens SIRIUS 3RT2627-1NP35 3RT26271NP35 Siemens AC/DC Capacitor Contactor

Replaces / compatible with

This advanced capacitor contactor can replace older Siemens models and offers enhanced features like integrated surge protection.

Technical note

Expert tip

The wide AC/DC coil voltage range (200-280V) offers flexibility, but verify it matches your control system's output to prevent damage.

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Frequently asked questions

What is the benefit of the integrated varistor in the Siemens 3RT2627-1NP35?

The integrated varistor in the 3RT2627-1NP35 protects the control coil from overvoltage surges. This is particularly useful in environments prone to electrical noise or transient voltage spikes, enhancing the contactor's longevity and operational stability.