Siemens 8SX8503-0AB01 | SINUMERIK Bus Terminal

Technical Overview of the Bus Terminal

The Siemens 8SX8503-0AB01 functions as a bus terminal for the SINUMERIK CNC control family. This component provides a physical connection point for the system’s data bus. It enables reliable signal distribution to connected modules and devices. The design ensures secure electrical contacts in industrial environments.

Key Technical Specifications

This section lists the precise parameters for the Siemens 8SX8503-0AB01 bus terminal. Use these figures when planning your SINUMERIK system layout.

Parameter	Specification
Part Number	8SX8503-0AB01
Type	Bus Terminal
Product Family	SINUMERIK
Connection Type	Screw-type terminals
Number of Positions	16 terminals
Voltage Rating	250V AC / DC
Current Rating	10 A per terminal
Wire Gauge	0.5 – 2.5 mm²
Dimensions (W x H x D)	Approx. 180 x 40 x 25 mm
Weight	Approx. 0.15 kg
Compatibility	SINUMERIK 810, 820, and 850 systems

Application and System Integration

This bus terminal connects directly to the SINUMERIK backplane bus. It distributes power and data signals to multiple I/O modules in the rack. The Siemens 8SX8503-0AB01 provides secure screw connections for field wiring. Each terminal position accommodates standard industrial cable gauges. Consequently, installation becomes straightforward for system integrators.

Reliability and Performance Characteristics

The screw-type terminals deliver a reliable connection that resists vibration. This design prevents signal loss in machine shop conditions. The compact size allows high-density mounting in control cabinets. Engineers trust the Siemens 8SX8503-0AB01 for consistent signal distribution in CNC applications.