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ABB TU551-CS31 AC500 CS31 Screw Terminal Unit
ABB TU551-CS31 AC500 CS31 Screw Terminal Unit
ABB TU551-CS31 AC500 CS31 Screw Terminal Unit

ABB TU551-CS31 AC500 CS31 Screw Terminal Unit

INQUIRE NOW · ABB AC500

ABB TU551-CS31 CS31 Bus Terminal Unit

ABB TU551-CS31 is a 24 V DC screw-terminal base that provides CS31 fieldbus and process wiring for compatible AC500 CS31 interface modules.

Order code 1SAP210600R0001
Bus CS31
Connection Screw terminal
Supply 24 V DC
Weight 0.236 kg
Lifecycle Active
Order check: Confirm the mounted CS31 interface module, screw-terminal preference, bus redundancy, field-channel wiring, supply and required terminal-unit revision.
★ Brand New Original
✓ One Year Warranty
✈ Worldwide Shipping
Request a TU551-CS31 Quote
Inquire Now
  • Worldwide delivery
  • Delivery from stock
  • In stock really means in stock
  • No account required
  • Shipped from the China
Product Specifications
Manufacturer ABB
Item number TU551-CS31
Country of Origin Germany
Lead Time 2-3 DAYS
After-Sales Support For after-sales support, please contact May.
HS Code / Commodity code Please confirm the destination before shipping.
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information
01

CS31 Terminal Base & Wiring Layout

Screw-terminal CS31 base matched to three supported interface modules.

TU551-CS31 is the wiring and mounting base for selected CS31 interface modules; its order code does not include a controller or I/O electronics module.

Identity, Supply & Construction 8 verified fields
Manufacturer ABB
Order code 1SAP210600R0001
Product family AC500
Product type CS31 terminal unit
Nominal supply 24 V DC
Connection method Screw terminals
Fieldbus CS31
Wiring access Front
Bus, Module Fit & Installation 8 verified fields
Compatible module family CS31 interface modules
DC551-CS31 Supported
CI590-CS31-HA Supported
CI592-CS31 Supported
Spring alternative TU552-CS31
Net weight 0.236 kg
Protection IP20 assembled system
Lifecycle status Active
01
Terminal unit onlyTU551-CS31 provides the mechanical base and field terminals. The selected DC551, CI590 or CI592 electronics module must be ordered separately.
02
Screw wiringThe exact TU551-CS31 variant uses screw terminals. Do not substitute the spring-terminal TU552-CS31 without reviewing maintenance standards and wiring hardware.
03
CS31 connectionsThe terminal unit carries CS31 bus, process-power and channel wiring according to the mounted interface module's terminal assignment.
04
Nameplate controlMatch order code 1SAP210600R0001 and the complete module/base combination; similar AC500 terminal units serve different bus and I/O functions.
02

Compatible CS31 Module & Connection Choices

The base must be chosen from the mounted electronics module, required screw or spring wiring, channel map and whether the CS31 application uses standard or redundant communication.

Application checkpoints
01
DC551-CS31 systemsABB lists TU551-CS31 for DC551-CS31, which provides a CS31 interface with configurable digital channels.
02
CI590 high availabilityThe base supports CI590-CS31-HA with its redundant CS31 media and 16 configurable digital channels.
03
CI592 mixed I/OTU551-CS31 also supports CI592-CS31, which combines CS31 communication with digital and analog process channels.
Conversion checkpoints
01
Spring-terminal optionTU552-CS31 provides the corresponding 24 V DC spring-terminal connection option.
02
No standalone operationThe terminal unit has no independent PLC or bus-processing function; operation depends on the correct mounted interface module.
03
Replacement preparationLabel every field wire and record the mounted module, bus address, process supply and terminal assignment before replacing a terminal base.
Related ABB CS31 modules and terminal units for exact configuration matching
TU552-CS31 24 V DC · spring terminals
DC551-CS31 CS31 interface · configurable digital I/O
CI590-CS31-HA Redundant CS31 · 16 configurable DC channels
CI592-CS31 CS31 interface · mixed digital/analog I/O
03

Buyer Questions for ABB TU551-CS31

Module fit, screw wiring, spring alternative, installation and quotation checks.

01 Which ABB CS31 modules can be mounted on ABB TU551-CS31?
ABB lists TU551-CS31 for DC551-CS31, CI590-CS31-HA and CI592-CS31. Confirm the exact electronics-module order code and terminal assignment before assembly.
02 What is the spring-terminal alternative to ABB TU551-CS31?
ABB TU552-CS31 is the corresponding 24 V DC spring-terminal unit. TU551-CS31 uses screw terminals, so select the connection method required by the cabinet standard.
03 Can ABB TU551-CS31 operate as a standalone CS31 device?
No. ABB TU551-CS31 is a passive terminal and mounting unit. A compatible CS31 communication/interface module provides the processing and channel functions.
04 What must be recorded before replacing ABB TU551-CS31 in an installed panel?
Record the mounted electronics module, bus address, power connections, every numbered field terminal, shielding and wire labels. De-energize the system and follow ABB installation instructions.
05 Is ABB TU551-CS31 still listed as active by ABB?
Yes. ABB lists order code 1SAP210600R0001 as Active in its product information. Actual availability and lead time must still be confirmed for the requested quantity and destination.
06 What should be included in an ABB TU551-CS31 inquiry?
Send a clear nameplate photo, mounted module model, screw-terminal confirmation, CS31 wiring requirement, quantity, destination and required delivery date.
04

About Company

Global sourcing experience, professional support and long-term automation partnerships.

People · Process · Partnership
Automation support team reviewing an industrial control module
01
Years of Global Experience20+ years of experience supporting automation customers across major international markets.
02
Professional Support TeamExperienced specialists help confirm models, select suitable products and resolve purchasing concerns.
03
Wide Range of BrandsWe supply PLCs, DCS parts, I/O modules, drives, motors, power supplies and communication modules.
04
Large In-Stock InventoryStock includes current, discontinued, obsolete and hard-to-find automation components.
05
Honesty & TrustWe build long-term cooperation through honest communication, responsibility and careful service.
06
Your Trusted Automation PartnerWe support single spare-part requests and complete automation projects worldwide.
05

Transaction Cases

Sincere Cooperation, Long-Term Trust

Three customer journeys showing careful verification, clear communication and repeat cooperation.

Russia 01
A Russian customer urgently needed a replacement for a discontinued automation component. After reviewing the product label, technical parameters, and application details, our engineers recommended a compatible alternative and provided photos and test videos before shipment. The alternative performed well, enhancing the customer's confidence in our technical capabilities and leading to multiple repeat orders.
India 02
An Indian customer still had doubts after initial online communication with us, so they visited our company in person for a face-to-face meeting and product inspection. This visit increased the customer's trust and led to the successful placement of their first order. Over the next few years, we completed multiple orders and established a stable, long-term partnership.
Venezuela 03
A Venezuelan customer needed a specific automation component and compared products and services from several suppliers online. After nearly three weeks of careful consideration, our sincere communication, professional service, and reliable product quality won the customer's trust. After receiving the product and using it for several weeks without any problems, the customer gave us positive feedback and subsequently placed multiple orders.
06

Mixed Automation Model References

Thirty-nine mixed model references selected from the supplied list. Send a full label photo to confirm the manufacturer, revision and configuration before quotation.

Reference set 1 01–13
01
QPA2000Siemens Building
02
CLIOP823AHoneywell Building
03
DDBC1200Philips Dynalite
04
PCO2DA0BM0CAREL
05
pnoz M04p 773536Pilz
06
EDS-408AMoxa
07
330100-50-05Bently Nevada
08
PSI-MOS-RS232/FOPhoenix Contact
09
BK4020Beckhoff
10
8013/22-02-43R. STAHL
11
TT5000nVent RAYCHEM
12
BZMC2-A200Eaton Moeller
13
MTN6730-0003Schneider Electric Building
Reference set 2 14–26
14
POL688.10 / STDSiemens Building
15
NC3FD-LXNeutrik
16
VAA-4E4A-G11-ZAJ/EA2L-FPepperl+Fuchs
17
BC9100Beckhoff
18
QBE9103-P60USiemens Building
19
FX-PCX1711-0Johnson Controls
20
MTN648493Schneider Electric Building
21
DS7708-SR00004ZCWWZebra Technologies
22
3216IEurotherm
23
PXG3.LSiemens Building
24
MCS-08PBEaton MTL
25
RS900GP-D-FG03-XXHirschmann
26
IQ4/IO/8DOTrend Controls
Reference set 3 27–39
27
IZM-SEC-TB15Eaton Moeller
28
704040/0-51-23JUMO
29
88974041 M3 CD12- 8I/4OCrouzet
30
SF230A-S2Belimo
31
DM-RMC-Scaler-CCrestron
32
LBB1946/00Bosch
33
KFA6-SR2-Ex2.WPepperl+Fuchs
34
EVDCU00E21CAREL
35
9111/52-11-00R. STAHL
36
DDRC1210FRPhilips Dynalite
37
DDC-400Schneider Electric Building
38
EL6692Beckhoff
39
MTL4513Eaton MTL
CONTACT

Send Your TU551-CS31 Inquiry

Include the complete model, ABB order code, mounted CS31 module, terminal preference, quantity, destination and required delivery date.

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