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
- 6ES7922-3BC50-5AB0
- Model no
- Flexible connection
SIMATIC TOP connectSiemens 6ES7922-3BC50-5AB0 SIMATIC TOP Connect Front Connector 20-Pole Screw-type 2.5 m PLC Connection Module
Siemens 6ES7922-3BC50-5AB0 SIMATIC TOP Connect 20-pole front connector, 2.5 m screw-terminal, 24 V DC
Description
About the Flexible connection
About the Flexible connection
The Siemens 6ES7922-3BC50-5AB0 is a pre-assembled SIMATIC TOP connect front connector for the SIMATIC S7-300, wired with 20 H05V-K single cores of 0.5 mm² cross-section at 2.5 m length, screw-terminal version. It plugs onto a 20-pole S7-300 digital I/O module in place of the bare front connector, rated 24 V DC (30 V DC max, 1.5 A per core), and ships as a pack of 5 units.
Selection Notes
Choose the 20-pole version to match the digital I/O module's channel count; the 20-core assembly cannot be trimmed down or extended to a different pole count. At 2.5 m, it reaches a control cabinet's terminal strip from a 20-pole S7-300 digital I/O module without an intermediate junction. The screw-type terminal lets individual cores be re-terminated on site without special crimp tooling. The H05V-K core insulation fits IEC-style panel wiring practice. Supplied as a pack of 5 units, it suits multi-rack retrofits where several identical I/O modules need rewiring in one order.
Specification
Full specification
General 14
| target system | SIMATIC S7-300 |
|---|---|
| suitability for use | Digital I/O modules |
| suitability for interaction: input card PLC | Yes |
| suitability for interaction: PLC output card | Yes |
| suitability for use: digital signal transmission | Yes |
| suitability for use: analog signal transmission | No |
| product brand name | SIMATIC Top connect |
| product type designation | Flexible connection |
| product designation | Front connector with single cores |
| electrical data operating voltage / at DC: rated value | 24 V |
| electrical data operating voltage / at DC: maximum | 30 V |
| continuous current / with simultaneous load on all cores / at DC / maximum permissible | 1.5 A |
| type of electrical connection: in the field | other |
| type of electrical connection: on enclosure | Screw-type terminal |
Connection method 9
| connector type | 6ES7392-1AJ00-0AA0 |
|---|---|
| type of connecting terminal | Screw-type terminal |
| wire length | 2.5 m |
| number of channels | 20 |
| number of poles | 20; of the front connector |
| marking / of cores standards, specifications, approvals | Number consecutively from 1 to 20 in white adapter contact = core number |
| certificate of suitability / cULus approval | No |
| ambient conditions ambient temperature: during operation | 0 ... 60 °C |
| ambient conditions ambient temperature: during storage | -30 ... +70 °C |
Mechanical data 9
| design of cable | H05V-K |
|---|---|
| material / of the connection cable sheath | PVC |
| color / of cable sheath | blue |
| RAL color number | RAL 5010 |
| conductor cross section / rated value | 0.5 mm2 |
| outer diameter / of cable sheath | 2.2 mm; of the cable |
| net weight further information / internet links | 3.05 kg |
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
| marketing text | The pre-assembled 20-pole front connector with 20 single wires of type H05V- K, conductor cross-section 0.5qmm, with a length of 2.5m in screw version is intended for connection to a digital I/O module of the SIMATIC S7-300. This is plugged onto the module to be wired instead of the front connector. This allows the signals of the digital I/O module to be easily connected to the elements to be wired via the numbered individual wires.This front connector with single wires is part of the flexible connection ofSIMATIC TOP connect for the fastest and safest system cabling. In addition to a 50% lower wiring effort, sources of errors in cabling can be significantly reduced. |
Show all 43 specifications ↓ Show less ↑11 more values in Identification, Logistics.
Identification 7
| Part number | 6ES7922-3BC50-5AB0 |
|---|---|
| Type designation | Flexible connection |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4025515130567 |
Logistics 4
| Shipping weight | 3.5 kg |
|---|---|
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6ES7922-3BC50-5AB0
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Quick answers
Questions about the Flexible connection
What is the rated current of Flexible connection?
The rated current of Flexible connection is 1.5 A.
Which supply voltage is Flexible connection rated for?
The rated operational voltage of Flexible connection is 24 V AC.
What is the HS code of Flexible connection for customs?
The tariff (HS) code on file for Flexible connection is 85444290.
What is the EAN of Flexible connection?
The EAN (GTIN) of Flexible connection is 4025515130567.
Where does Flexible connection ship from, and how fast?
Flexible connection ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Siemens SIMATIC TOP connect
- Brand
- Siemens
- Series
- SIMATIC TOP connect
