The BL20-S6T-SBCSBC is a TURCK BL20 series passive base module with tension-spring terminals for connecting field devices. A BL20 electronic module mounts onto the base, and mechanical coding prevents plugging in the wrong module.

• Connection: tension-spring terminals, supports 2-, 3- and 4-wire wiring
• Design: disc-style construction with access to the C rail
• Dimensions: 12.6 x 154.5 x 49.9 mm (W x L x H)
• Environment: IP20

The base is a passive element with no electronics of its own — a compatible BL20 electronic module must be mounted on it, for example the BL20-4AI-U/I. The electronics can be replaced without disconnecting the field wiring, since the connections stay on the base.

Complies with CE and cULus requirements, and with Zone 2 and Class I Div. 2 classification.

The BL20-4AI-U/I is a TURCK BL20 series electronic module with 4 analogue inputs, each channel individually selectable for its signal type. The module mounts on a separate BL20 base, and the field signal is galvanically isolated from the module bus via an optocoupler.

• Inputs: 4 analogue inputs, each channel selectable for 0/4...20 mA or 0/10...+10 VDC
• Power: 24 VDC, field supply current ≤20 mA, module bus current ≤50 mA
• Connection: BL20-S6T-SBCSBC (tension-spring) or BL20-S6S-SBCSBC (screw) base
• Environment: IP20, 0...+55°C

The module requires a separately ordered base — it cannot be used without one, and the electronics can be replaced without disconnecting the field wiring, since the connections stay on the base.

Complies with cULus, FM ATEX and IECEx requirements, as well as FM Class I Div. 2 (US and Canada).

The BL20-E-16DI-24VDC-P is a TURCK BL20-E series economy module with 16 digital PNP inputs. Electronics and connection technology are combined in one housing, so no separate base module is needed.

• Inputs: 16 digital inputs, PNP switching, delay <0.3 ms
• Signal: low level -30...+5 V, high level 11...30 V
• Power: 24 VDC (18...30 VDC), field supply current ≈3 mA, module bus current ≤32 mA
• Connection: push-in terminals
• Environment: IP20, 0...+55°C

The module operates as part of a BL20-E station together with a BL20-E-GW gateway and other BL20-E modules, and is suited for wiring switches, buttons and digital sensors in a control cabinet.

Complies with cULus requirements.

The BL20-E-GW-EN-IP is a TURCK BL20-E series gateway that connects a BL20 I/O station to an EtherNet/IP network. The node address is set with a DIP switch, and the gateway works as the station's head module with an integrated power supply.

• Communication: EtherNet/IP, integrated 10/100 Mbps switch, 2x RJ45
• Power: 24 VDC (18...30 VDC), module bus current ≤200 mA, field supply current up to 8 A, system supply current up to 0.4 A
• Addressing: node address set via DIP switch
• Indication: LEDs for supply, group and bus error status
• Housing: DIN-rail mounting, includes 2 end brackets and 1 end plate
• Environment: IP20, 0...+55°C

The gateway forms the head of a BL20 station in a control cabinet, collecting distributed I/O signals and passing them to a PLC over an EtherNet/IP network. The station additionally requires matching BL20-E series I/O modules, ordered separately.

Complies with FM ATEX, IECEx and FM Class I Div. 2 (US and Canada) requirements, and carries an EU Declaration of Conformity.