Siemens Device adapter for 60mm busbar system, S0, 32A Part number 8US1251-5NT11

Product Overview

The Siemens 8US1251-5NT11 is a device adapter for the SENTRON 8US 60 mm busbar system, designed to allow modular devices such as circuit breakers, load feeders, or other protective components to be safely and efficiently connected to a standardized busbar distribution system. It provides secure electrical interface, simplified panel wiring, and reliable mechanical mounting for industrial distribution boards and switchgear assemblies.

Key Features

• Device adapter for the 60 mm SENTRON 8US busbar system
• Suited for S0-size devices
• Rated current 32 A; rated voltage up to 690 V AC
• Adapter width 45 mm, length 260 mm — compact, space-efficient design
• Compatible with busbar thicknesses from 5 mm to 10 mm
• Supports 60 mm busbar spacing (center-to-center)
• Includes pre-assembled, welded connection lines (AWG 10)
• Supplied with mounting rail for easy screw-on installation
• Includes a spacer element for precise positioning on the busbar system
• Robust, industrial-grade construction suitable for control panels and distribution switchboards

Technical Specifications

• Article Number: 8US1251-5NT11
• Product Type: Busbar Device Adapter (SENTRON 8US system)
• Rated Current: 32 A
• Rated Voltage: Up to 690 V AC
• Adapter Width: 45 mm
• Length: 260 mm
• Busbar Compatibility:
  • Busbar thickness: 5–10 mm
  • Busbar spacing: 60 mm (center-to-center)
• Connection Lines: Pre-welded, special AWG 10 conductor lines
• Mounting Method: Screw-on mounting rail included
• Net Weight: approx. 0.331 kg
• Usage: For modular device connection to 60 mm 8US busbar systems in low-voltage distribution

Compliance & Standards

• Designed for Siemens SENTRON 8US busbar systems
• Suitable for industrial low-voltage distribution installations
• Meets electrical/mechanical requirements for standardized busbar panel assembly

Applications

The 8US1251-5NT11 is ideal for power distribution boards, switchgear assemblies, and industrial control panels using the 60 mm busbar system. It enables quick, standardized, and safe attachment of devices such as MCCBs, load feeders, switches, and protective modules onto the busbar, reducing wiring effort while improving reliability, layout consistency, and installation efficiency in industrial and commercial low-voltage power systems.