Siemens SIRIUS 3RH2 Contactor Relay, 24 V ac Coil, 4-Pole, 10 A, 4NO, 690 V ac

RS Stock No.:: 746-0752
Distrelec Article No.:: 300-50-569
Mfr. Part No.:: 3RH2140-1AB00
Manufacturer:: Siemens

Siemens SIRIUS 3RH2 Contactor Relay, 24 V ac Coil, 4-Pole, 10 A, 4NO, 690 V ac

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RS Stock No.:: 746-0752
Distrelec Article No.:: 300-50-569
Mfr. Part No.:: 3RH2140-1AB00
Manufacturer:: Siemens

Contactor Relays - 3RH2 Range

Climate-proof, finger safe contactor relays. RC elements, varistors, diodes or diode assemblies (combination of a diode and a Zener diode) can be plugged onto all contactor relays for damping opening surges in the coil.

Size S00
High degree if contact stability at low voltages & current
Suitable for use with solid-state circuits with currents ≥ 1 mA at a voltage of ≥ 17 V
Capable of expansion by up to four contacts through use of snap-on auxiliary switch blocks

Note

The OFF-delay of the NO contact and the ON-delay of the NC contact are increased if the contactor coils are attenuated against voltage peaks (noise suppression diode 6 to 10 times; diode assemblies 2 to 6 times, varistor +2 to 5 ms).

Standards

IEC 60947-1, EN 60947-1, IEC 60947-4-1, EN 60947-4-1, IEC 60947-5-1, EN 60947-5-1.

Siemens 3RH2 Series Contactor, 24V AC Coil Voltage, 4NO Normal State Configuration - 3RH2140-1AB00

This contactor is designed for control in various industrial applications. Operating at 24V AC and handling up to 10A of current, it serves as an essential component in automation and electrical systems. Its sturdy design ensures durability in challenging environments while allowing various connection options.

Features & Benefits

• Operates at a coil voltage of 24V AC
• Supports switching up to 10A for demanding applications
• Compact design suitable for installations with limited space
• Offers four normally open contacts for versatile operations
• Equipped with screw terminals for easy wiring
• Designed for a mechanical lifespan of up to 30 million cycles

Applications

• Utilised in industrial machinery for effective switching and control
• Employed in automation systems that require precise current management
• Suitable as an auxiliary contactor in complex electrical configurations
• Appropriate for needing a high operational frequency
• Ideal for environments with ambient temperature ranges from -25°C to +60°C

How is installation performed with this component?

It can be mounted on a vertical surface using screw and snap-on fittings, providing installation flexibility.

What type of auxiliary contacts are compatible?

It accommodates four normally open auxiliary contacts, enhancing functionality for different control applications.

What are the operational limits regarding voltage and current?

It is rated for a maximum voltage of 690V AC and can handle up to 10A per current path under AC-12 conditions.

Can I use this contactor in outdoor conditions?

The component is intended for indoor use but can operate within specified ambient temperatures

however, exposure to extreme weather is not advisable.

What maintenance is required to ensure optimal performance?

Regular inspections for dirt accumulation and tight connections can help maintain performance and longevity.

Siemens Sirius Range Contactor & Control Relays

Attribute	Value
Coil Voltage	24 V ac
Number of Poles	4
Contact Voltage Rating	690 V ac
Contact Current Rating	10 A
Range	SIRIUS
Series	3RH2
Normal State Configuration	4NO
Auxiliary Contact Configuration	4NO
Number Of Auxiliary Contacts	4
Terminal Type	Screw
Width	45mm
Length	57.5mm
Depth	73mm
Pole and Throw Configuration	4P
Maximum Operating Temperature	+60°C
Minimum Operating Temperature	-25°C
Control Voltage	24 V
Mounting Style	DIN Rail