3TH4271-0BM4

Siemens SIRIUS 3TH4271-0BM4 Contactor Relay, 7 Normally Open, 1 Normally Closed, 220VDC
Siemens SIRIUS 3TH4271-0BM4 Contactor Relay, 7 Normally Open, 1 Normally Closed, 220VDC

Siemens SIRIUS 3TH4271-0BM4 contactor relay, 8 poles, 7 normally open and 1 normally closed contacts, coil 220V DC, AC-15 rated 6A (230V)/10A (400V), screw terminal, IP20 protection.

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Siemens SIRIUS 3TH4271-0BM4 Contactor Relay, 7 Normally Open, 1 Normally Closed, 220VDC
Product Positioning

The 3TH4271-0BM4 belongs to the Siemens SIRIUS 3TH4271 series. It features 7 normally open contacts and 1 normally closed contact, with a 220V DC coil, making it suitable for DC control circuits that require a set of normally closed feedback signals.

Core Product Advantages and Features
7NO+1NC contact configuration
The 8-pole contacts consist of 7 normally open and 1 normally closed groups, which can simultaneously provide multiple control signals and one feedback confirmation signal.
220V DC coil
The coil has a rated control voltage of 220V DC, making it suitable for expansion of existing high-voltage DC control systems.
Screw terminal design
Both the main and auxiliary circuits use screw terminals for connection, making wiring and maintenance identification relatively intuitive.
Flexible installation method
It supports quick installation with 35mm guide rail clips, and can also be fixed to the panel with screws, improving construction flexibility.
project Specification
model 3TH4271-0BM4
Product Type SIRIUS contactor relays
Contact configuration 7 normally open (NO) + 1 normally closed (NC)
Extreme number 8 poles
Coil rated voltage 220V DC
Rated current (AC-15, 230V/400V) 6A/10A
Terminal type screw terminal
Installation method Guide rail clips/screws fixing
Protection level IP20
Ambient temperature -25°C ~ +55°C
External dimensions (height x width x depth) 78 x 45 x 135 mm

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