3TH4373-0AC2

3TH4373-0AC2 SIRIUS 3TH4 Auxiliary Contactor, 7 Normally Open, 3 Normally Closed, AC24V Coil
3TH4373-0AC2 SIRIUS 3TH4 Auxiliary Contactor, 7 Normally Open, 3 Normally Closed, AC24V Coil

The 3TH4373-0AC2 is a Siemens SIRIUS 3TH4 auxiliary contactor with a 10-pole contact combination of 7 normally open and 3 normally closed contacts. The coil specification is AC24V, 50/60Hz universal, and the contact rating is AC-15 230V/10A. It uses screw terminal wiring and is suitable for signal expansion in low-voltage 24V AC control power supply systems.

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3TH4373-0AC2 SIRIUS 3TH4 Auxiliary Contactor, 7 Normally Open, 3 Normally Closed, AC24V Coil
Product Positioning

The 3TH4373-0AC2 is a 10-pole auxiliary contactor belonging to the SIRIUS 3TH4373 sub-series. It features a combination of 7 normally open and 3 normally closed contacts and is equipped with an AC24V coil, making it suitable for control circuits operated on low-voltage AC power.

Core Product Advantages and Features
7 normally open and 3 normally closed contact configuration
The identification code is 73E, and the 10 sets of fixed contacts provide a combination of 7 normally open and 3 normally closed contacts to meet the needs of multi-loop control and feedback.
AC24V coil specifications
The coil voltage is AC24V, 50/60Hz universal, suitable for panel design of low-voltage AC control power supply.
AC-15 contact rated
The contacts are rated AC-15 230V/10A and can be used for switching general electromagnetic contactors or indicating circuits.
Dual-bridge forced guidance contact
It adopts a dual-bridge contact and forward drive structure, which still maintains high contact reliability under low energy signal conditions.
Compliant with international safety regulations
It conforms to EN 50011 and IEC 60947-5-1 standards and has NEMA A600 contact rating.
project Specification
model 3TH4373-0AC2
series SIRIUS 3TH4 Auxiliary Contactor/Control Relay
Identification code 73E
Contact configuration 7 normally open + 3 normally closed (10 poles in total)
coil voltage AC 24V, 50/60Hz
Contact rating (AC-15) 230V/10A, 400V/6A, 690V/2A
Wiring method Screw terminals
Operation method AC electromagnetic operation
Applicable Standards EN 50011, IEC 60947-5-1
Contact Level NEMA A600

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