Siemens 6ES5700-2BD11 Terminal Block

The Siemens 6ES5700-2BD11 Terminal Block connects field wiring to SIMATIC S5 I/O modules. This passive termination block provides screw-type connections for 20 signal wires. You will find it in control cabinets across many manufacturing industries. It mounts directly in front of compatible S5 modules for easy access. Therefore, this unit simplifies field wiring and maintenance procedures.

The Siemens 6ES5700-2BD11 Terminal Block measures 150 mm in height and 45 mm in width. Its depth reaches 35 mm for DIN rail mounting. The unit weighs approximately 0.28 kilograms. It contains no active electronic components at all. Twenty screw terminals line up in two rows of ten. Additionally, you get a 20-pin ribbon cable for module connection.

Key Technical Specifications

Internal Architecture and Energy Storage

The Siemens 6ES5700-2BD11 Terminal Block stores absolutely no electrical energy internally. It contains no capacitors, batteries, or semiconductor devices. Twenty screw terminals connect directly to a 20-pin ribbon cable. Each terminal has a direct copper trace path to its corresponding cable wire. A high-temperature plastic housing protects all connections from dust. Each terminal accepts solid or stranded copper wire without issues. The included ribbon cable measures 500 mm in length. A polarizing connector prevents incorrect attachment to the I/O module.

Connection Interfaces and Wiring Details

You will find 20 screw terminals arranged in two rows of ten. Each terminal accepts 24 to 14 AWG copper wire. Use a 3.5mm flathead screwdriver to tighten each screw. Strip 8 mm of insulation from each wire before insertion. Then, insert the bare copper into the square terminal opening. Tighten the screw to 0.6 Nm of torque maximum. The Siemens 6ES5700-2BD11 Terminal Block includes a 20-pin ribbon cable with female connector. Connect this cable to the front of a compatible S5 I/O module. Align the connector keyway carefully before pressing it in. The terminal block requires no external power supply at all. It simply routes signals between field devices and the I/O module.

Installation and Mounting Steps

You mount this terminal block onto standard 35 mm DIN rail. First, hook the top clip onto the rail edge securely. Then, press the bottom toward the rail until it snaps into place. Slide the block along the rail for easy panel layout. Connect all field wiring before attaching the ribbon cable. Label each terminal with its corresponding channel number clearly. The Siemens 6ES5700-2BD11 Terminal Block requires no external power supply at all. Connect the ribbon cable to the front of your S5 I/O module. For high-vibration areas, add end stops on both rail ends. Test each connection with a continuity tester before power-up. Secure the ribbon cable away from sharp edges or moving parts.