PLCs, Power Supplies & Others

The 6ES5700-2BA11 termination base provides a mounting and wiring interface for SIMATIC S5 I/O modules. Siemens builds this base for legacy systems that need reliable field connections. It holds the module in place and routes terminal signals to the backplane bus.

Terminal Count and Wiring Interface

The base offers 32 screw terminals for field wiring, and each terminal accepts conductors from 0.5 mm² to 2.5 mm². A rear connector mates with the S5 backplane and passes signals to the I/O module. Screw terminals with captive clamping plates simplify conductor insertion during installation. Moreover, molded barriers separate adjacent circuits and reduce cross-talk between signal lines.

Physical Dimensions and Construction

The base measures 200 mm in length, 80 mm in width, and 40 mm in depth. It weighs approximately 0.5 kg, and it mounts on a standard S5 rail or panel plate. The housing uses flame-retardant plastic that meets standard S5 enclosure ratings. Gold-plated edge contacts resist corrosion in humid plant environments.

Installation and Wiring Notes

Technicians snap the 6ES5700-2BA11 onto the mounting rail and seat the I/O module in its slot. Field conductors land on the screw terminals and tighten to the rated torque. Crews check channel labels against wiring drawings before energizing the cabinet. Consequently, startup checks move faster and wiring errors drop.

Why This Base Supports Legacy S5 Retrofits

Maintenance teams select the 6ES5700-2BA11 for its 32-terminal capacity and captive screw design. The gold-plated contacts hold up in humid and corrosive plant rooms. The flame-retardant housing meets standard S5 safety ratings. This termination base serves plants that keep S5 systems running for spare-part continuity.

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