How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
- Part number
- 6ES7193-6BP20-0DC0
- Model no
- BU type C0
In stock · 41
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· From Türkiye
0
SIMATIC ET 200SPSiemens 6ES7193-6BP20-0DC0 SIMATIC ET 200SP BaseUnit Type C0 BU20-P6+A2+4D Remote I/O Accessory
SIMATIC ET 200SP BaseUnit type C0, push-in terminals, 24V DC/230V AC, 10A, new load group
Description
About the BU type C0
About the BU type C0
The Siemens 6ES7193-6BP20-0DC0 is a SIMATIC ET 200SP BaseUnit type C0 (BU20-P6+A2+4D) that provides push-in terminal connections for I/O modules on the ET 200SP backplane, rated 24 V DC or 230 V AC and 10 A current carrying capacity. It includes 2 AUX terminals in a new load group and measures 20 x 117 mm (W x H), starting a new potential group for load segmentation.
Selection Notes
BU20-P6+A2+4D (type C0) starts a new load group and adds 2 AUX terminals, so this slot's process supply can be isolated from the BaseUnits upstream of it. Pick it over a bridged BaseUnit when a downstream module needs a separate voltage or potential domain, such as isolating a noisy actuator circuit or stepping from a 24 V DC zone to a 230 V AC zone. Since the slot itself supports both DC and AC rated values, confirm the connected I/O module's own voltage class before wiring 230 V.
Applications
Potential-group segmentation within an ET 200SP station, a mounting slot for analog or digital I/O modules that need an isolated process supply, and mixed-voltage-zone distributed I/O stations.
Specification
Full specification
General information 2
| Product type designation | BU type C0 |
|---|---|
| HW functional status | FS10 and higher |
Supply voltage 7
| Rated value (DC) | See manual |
|---|---|
| For P1 and P2 bus | 24 V |
| For AUX bus | 24 V; Equal potential group to P1/P2 bus or PE |
| for process terminals | 24 V |
| Rated value (AC) | See manual |
| external protection for power supply lines | Yes; 10 A miniature circuit breaker with type B or C tripping characteristic for the respective rated supply voltage |
| Mains filter: integrated | No |
Current carrying capacity 4
| up to 60 °C, max. | 10 A |
|---|---|
| For P1 and P2 bus, max. | 10 A |
| For AUX bus, max. | 10 A |
| For process terminals, max. | 5 A; 10 A for process terminals 5 and 6 |
Show all 59 specifications ↓ Show less ↑46 more values in Identification, Hardware configuration, Potential separation, Isolation, Standards, approvals, certificates, Ambient conditions, Accessories, Connection method, Dimensions, Weights, Logistics.
Identification 10
| Part number | 6ES7193-6BP20-0DC0 |
|---|---|
| Type designation | BU type C0 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515082064 |
| ETIM class | EC001598 |
| eCl@ss | 27242603 |
Hardware configuration 2
| Automatic encoding | Yes |
|---|---|
| Slots: Number of slots | 1 |
Potential separation 3
| between backplane bus and supply voltage | Yes |
|---|---|
| between process terminals and supply voltage | Yes |
| between power bus and supply voltage | No |
Isolation 1
| Isolation tested with | 3 100 V DC |
|---|
Standards, approvals, certificates 5
| Ecological footprint: environmental product declaration Global warming potential | Yes |
|---|---|
| Ecological footprint: global warming potential, (total) [CO2 eq] | 0.873 kg |
| Ecological footprint: global warming potential, (during production) [CO2 eq] | 0.866 kg |
| Ecological footprint: global warming potential, (during operation) [CO2 eq] | 0 kg |
| Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] | -0.0011 kg |
Ambient conditions 4
| Ambient temperature during operation: horizontal installation, min. | -30 °C |
|---|---|
| Ambient temperature during operation: vertical installation, min. | -30 °C |
| Altitude during operation relating to sea level: Installation altitude above sea level, max. | 2 000 m; On request: Installation altitudes greater than 2 000 m |
| Absolute humidity: dew point, min. | -60 °C; suitable for dry room applications |
Accessories 3
| Color coding labels: for process terminals | CC51, CC52 |
|---|---|
| Color coding labels: for AUX terminals | CC84 to CC86 |
| Color coding labels: for add-on terminals | does not exist |
Connection method 8
| Terminals: Terminal type | Push-in terminal |
|---|---|
| Terminals: system-integrated shield connection | Yes; Optional |
| Terminals: Conductor cross-section, min. | 0.14 mm2; AWG 26 |
| Terminals: Conductor cross-section, max. | 2.5 mm2; AWG 14 |
| Terminals: Number of process terminals to I/O module | 12; Pro slot |
| Terminals: Number of terminals to AUX bus | 0 |
| Terminals: Number of add-on terminals | 0 |
| Terminals: Number of terminals with connection to P1 and P2 bus | 0; Pro slot |
Dimensions 3
| Width | 20 mm |
|---|---|
| Height | 117 mm |
| Depth | 35 mm |
Weights 1
| Weight, approx. | 47 g |
|---|
Logistics 6
| Net weight | 0.056 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 0.556 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6ES7193-6BP20-0DC0
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Quick answers
Questions about the BU type C0
What is the rated current of BU type C0?
The rated current of BU type C0 is 10 A.
Which supply voltage is BU type C0 rated for?
The rated operational voltage of BU type C0 is 230 V AC.
What is the HS code of BU type C0 for customs?
The tariff (HS) code on file for BU type C0 is 85366990.
What is the EAN of BU type C0?
The EAN (GTIN) of BU type C0 is 4025515082064.
Where does BU type C0 ship from, and how fast?
BU type C0 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Series
Siemens SIMATIC ET 200SP
- Brand
- Siemens
- Series
- SIMATIC ET 200SP
