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Siemens 3RT2637-1AP05 75 kVAr Capacitor Contactor

Siemens 3RT2637-1AP05 75 kVAr 3-pole capacitor contactor

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ManufacturerSiemens

Part number3RT2637-1AP05

AC-6b Rating 75 kVAr / 400 V

Poles 3

Coil Voltage 230 V AC

Auxiliary Contacts 2 NC

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Veteran-owned

CAGE: 9NK75

High capacity AC-6b rating Manages large inrush currents Ensures system stability 2 NC auxiliary contacts Robust S2 size Screw terminals

Product description

The Siemens 3RT2637-1AP05 is a high-capacity capacitor contactor engineered for AC-6b applications, rated for 75 kVAr at 400V. This 3-pole unit operates with a 230V AC coil and features 2 normally closed (NC) auxiliary contacts. It is equipped with screw terminals for robust connections and is built to the S2 size, suitable for larger power factor correction installations.

This contactor is essential for managing significant reactive power compensation in industrial facilities. Its design effectively handles the inrush currents of large capacitor banks, ensuring system stability and protecting equipment from electrical stress. The optimized performance contributes to efficient energy usage and reliable grid operation.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2637-1AP05. We provide dependable access to quality industrial automation components. Source your essential capacitor contactors and other automation parts from Stanlo Automation for value and reliable service.

Technical specifications

AC-6b Rating	75 kVAr / 400 V
Poles	3
Coil Voltage	230 V AC
Auxiliary Contacts	2 NC
Terminals	Screw
Size	S2

Common applications

Large-scale power factor correction

Industrial facilities

High-capacity capacitor banks

Reactive power compensation

Energy management

Compatible systems

Compatible with Siemens SIRIUS 3RT2 series accessories.

Also known as

Siemens 3RT2637-1AP05 Contactor SIRIUS 3RT26 75 kVAr Contactor Siemens High Capacity Capacitor Contactor

Replaces / compatible with

Compatible with Siemens SIRIUS 3RT2 series accessories, including surge suppressors and auxiliary switches for enhanced functionality.

Technical note

Expert tip

The S2 size of this capacitor contactor is indicative of its capacity to handle higher currents and manage the thermal loads associated with large-scale power factor correction systems.

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Frequently asked questions

What differentiates the Siemens 3RT2637-1AP05 from smaller capacitor contactors?

The Siemens 3RT2637-1AP05 is designed for higher power ratings (75 kVAr) and is built to the larger S2 size, making it suitable for industrial facilities requiring significant reactive power compensation, whereas smaller contactors are for lower kVAr applications.