Siemens 6ES5700-2BA11 Termination Base

This termination base provides connection points for field wiring in Siemens SIMATIC S5 systems. It interfaces between the PLC rack and external sensors or actuators. Therefore, it simplifies cable management and maintenance in control cabinets.

Physical and Connection Specifications

The Siemens 6ES5700-2BA11 measures 25.0 cm in length and 12.0 cm in width. Moreover, its base weight equals approximately 0.45 kg for rail mounting. A single 48-pin male connector links this base to the S5 backplane. Additionally, the unit includes 20 screw terminal blocks for field wiring.

Parameter	Specification
Brand	Siemens
Full Model	6ES5700-2BA11
Category	Termination Base
Dimensions (L x W x H)	25.0 cm x 12.0 cm x 8.0 cm (9.84″ x 4.72″ x 3.15″)
Base Weight	0.45 kg (0.99 lbs)
Backplane Interface	1 x 48-pin Male Connector (S5 Rack)
Field Wiring Interface	20 Screw Terminal Blocks
Terminal Pitch	6.0 mm (0.24 inches)
Wire Gauge Supported	24 to 14 AWG (0.2 to 2.5 mm²)
Stripping Length	7 mm (0.28 inches)
Screw Type	Slotted (M3)
Tightening Torque	0.5 to 0.6 Nm (4.4 to 5.3 lb-in)
Rated Voltage	250 VAC / VDC
Rated Current per Terminal	10 A Maximum
Contact Material	Brass with Tin Plating
Housing Material	Polyamide (PA66), UL 94 V-0
Housing Color	Light Gray (RAL 7035)
On-Board Components	None (Passive Termination Base)
Energy Storage	None (No Electrical Components)
Operating Temperature	-25°C to +85°C (-13°F to 185°F)
Storage Temperature	-40°C to +85°C (-40°F to 185°F)
Mounting Type	DIN Rail (EN 50022)
Marking Area	Top Surface (Accepts Marker Strips)

Connection Features and Wire Termination

The Siemens 6ES5700-2BA11 accepts solid or stranded copper wires for field connections. For instance, you can use wire sizes from 24 AWG up to 14 AWG. In addition, each terminal includes a captive screw that prevents loss during wiring. Moreover, the 6.0 mm pitch allows dense wiring in control panels. Consequently, field electricians can terminate wires quickly without special tools.

Passive Backplane and Signal Routing

This termination base uses a passive PCB without active electronic components. Specifically, it routes signals directly between the backplane connector and screw terminals. In addition, gold-plated contacts ensure reliable signal transfer for all 20 points. Furthermore, the base does not store any electrical energy on its PCB. Thus, this unit requires no maintenance or periodic replacement.

Installation and Mounting Information

You will find a DIN rail clip on the rear of this termination base. For example, the base snaps directly onto EN 50022 standard rail. In addition, an M4 grounding stud provides a connection point for system earth. Moreover, the base includes a locking lever for secure rail attachment. Therefore, the Siemens 6ES5700-2BA11 installs quickly in new or existing cabinets.

Marking and Identification Features

A flat marking surface runs across the top of this termination base. For instance, you can attach pre-printed marker strips or write directly on labels. In addition, the 6.0 mm pitch aligns with standard comb-style marker systems. Thus, you can clearly identify each connected field device for future troubleshooting.