Siemens SIRIUS ACT Support Terminals (3SU1400-DA, front plate / base)

Support terminals for SIRIUS ACT devices that collect up to four conductors of the same group, e.g. all neutral conductors, in one enclosure.

Key features

Up to four conductors of the same group on one support terminal
Front plate mounting version installs on the rear face of a holder
Base mounting version for any placement position in 3SU18 enclosures
Screw or spring-loaded terminals
Black, blue (N) and green/yellow (PE) versions

Specifications

Brand	Siemens
Product line	SIRIUS ACT (3SU1)
Function	Collecting conductors (e.g. neutral)
Conductors per terminal	Up to 4
PU	1 unit
Source	Siemens Catalog IC 10 · 2026, p. 1302

3SU1400-1DA10-1AA0		Mounting: Front plate mounting \| Connection: Screw terminals \| Color: Black
3SU1400-1DA50-1AA0		Mounting: Front plate mounting \| Connection: Screw terminals \| Color: Blue
3SU1400-1DA43-1AA0		Mounting: Front plate mounting \| Connection: Screw terminals \| Color: Green/yellow
3SU1400-1DA10-3AA0		Mounting: Front plate mounting \| Connection: Spring-loaded terminals \| Color: Black
3SU1400-1DA50-3AA0		Mounting: Front plate mounting \| Connection: Spring-loaded terminals \| Color: Blue
3SU1400-1DA43-3AA0		Mounting: Front plate mounting \| Connection: Spring-loaded terminals \| Color: Green/yellow
3SU1400-2DA10-1AA0		Mounting: Base mounting \| Connection: Screw terminals \| Color: Black
3SU1400-2DA50-1AA0		Mounting: Base mounting \| Connection: Screw terminals \| Color: Blue
3SU1400-2DA43-1AA0		Mounting: Base mounting \| Connection: Screw terminals \| Color: Green/yellow
3SU1400-2DA10-3AA0		Mounting: Base mounting \| Connection: Spring-loaded terminals \| Color: Black
3SU1400-2DA50-3AA0		Mounting: Base mounting \| Connection: Spring-loaded terminals \| Color: Blue
3SU1400-2DA43-3AA0		Mounting: Base mounting \| Connection: Spring-loaded terminals \| Color: Green/yellow

AccessoriesSiemens

12 product codes available in this family

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Siemens SIRIUS ACT Support Terminals (3SU1400-DA, front plate / base)

Brand Siemens·Accessories

Available part numbers (12)

3SU1400-1DA10-1AA0, 3SU1400-1DA50-1AA0, 3SU1400-1DA43-1AA0, 3SU1400-1DA10-3AA0, 3SU1400-1DA50-3AA0, 3SU1400-1DA43-3AA0, 3SU1400-2DA10-1AA0, 3SU1400-2DA50-1AA0, 3SU1400-2DA43-1AA0, 3SU1400-2DA10-3AA0 + 2 more — see full table ↓

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Siemens SIRIUS ACT Support Terminals (3SU1400-DA, front plate / base)