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Siemens 3RT2027-1BB44 SIRIUS Power Contactor — 32A 15kW 24V DC, 2NO+2NC

Siemens 3RT2027-1BB44 3-pole contactor, 32A, 15kW, 24V DC, 2NO+2NC aux.

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ManufacturerSiemens

Part number3RT2027-1BB44

Type Power Contactor

Poles 3

AC-3e/AC-3 Rating 32A

Max Power (400V) 15 kW

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12-month warranty

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Veteran-owned

CAGE: 9NK75

AC-3e/AC-3 rating 32A switching current 15kW power capacity 24V DC coil 2 NO + 2 NC auxiliary contacts Removable auxiliary switch

Product description

The Siemens 3RT2027-1BB44 is a 3-pole power contactor for AC-3e/AC-3 applications, rated for 32A and 15kW at 400V. This size S0 contactor operates with a 24V DC coil and features 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, offering enhanced control options. It includes a removable auxiliary switch and uses screw terminals for connection.

This contactor is ideal for motor control and switching applications where DC control voltage is used and a higher number of auxiliary contacts is needed for complex logic or signaling. It is suitable for diverse industrial settings like manufacturing plants and automated systems.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, offers the Siemens 3RT2027-1BB44. Ensure your control systems are equipped with reliable, high-quality components sourced from Stanlo.

Technical specifications

Type	Power Contactor
Poles	3
AC-3e/AC-3 Rating	32A
Max Power (400V)	15 kW
Coil Voltage	24V DC
Auxiliary Contacts	2 NO + 2 NC
Terminal Type	Screw
Size	S0
Removable Auxiliary Switch	Yes

Common applications

Motor control

DC control systems

Industrial automation

Control panels

Signaling circuits

Automated machinery

Compatible systems

Designed for use in DC control circuits and compatible with other Siemens SIRIUS components.

Also known as

Siemens 3RT2027 Contactor SIRIUS 3RT2027-1BB44 32A 24V DC Contactor with 2NO2NC

Replaces / compatible with

This contactor is part of the Siemens SIRIUS 3RT2 series and is a direct replacement for Siemens contactors with 24V DC coils and 2 NO + 2 NC auxiliary contacts.

Technical note

Expert tip

Ensure the auxiliary switch block is securely latched to the main contactor body to guarantee reliable electrical connections and operational integrity.

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Frequently asked questions

What is the benefit of the removable auxiliary switch on the Siemens 3RT2027-1BB44?

The removable auxiliary switch on the Siemens 3RT2027-1BB44 allows for easy addition, removal, or replacement of auxiliary contact blocks without having to dismantle the main contactor. This simplifies maintenance and configuration of control circuits.