Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
submit
Home

Products

Siemens 3TX7003-1CB00 24 V AC/DC Interface Relay Image 1
Siemens 3TX7003-1CB00 24 V AC/DC Interface Relay Image 2
Siemens 3TX7003-1CB00 24 V AC/DC Interface Relay Image 3

Siemens 3TX7003-1CB00 24 V AC/DC Interface Relay

SIEMENS · 3TX7 · INTERFACE RELAY

Siemens 3TX7003-1CB00 is a legacy 24 V AC/DC interface relay with different Siemens transition paths for AC and DC service. Confirm the actual coil supply, socket, contacts, wiring and approval requirements before replacement.

ORDER NUMBER3TX7003-1CB00
COIL DESIGNATION24 V AC/DC
AC PATHLZS:RT4D4R24
DC PATHLZS:RT4D4L24
Order check: identify whether Siemens 3TX7003-1CB00 is operating on AC or DC; then verify the correct LZS transition model and socket.◆ One Year Warranty   ◆ Fast Delivery   ◆ Worldwide Shipping
Inquire Now
  • Worldwide delivery
  • Delivery from stock
  • In stock really means in stock
  • No account required
  • Shipped from the China
Product Specifications
Manufacturer Siemens AG
Item number 3TX7003-1CB00
Country of Origin Czech Republic
Lead Time 2-3 DAYS
After-Sales Support For after-sales support, please contact May.
HS Code / Commodity code 85364190
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 · INTERFACE RELAY IDENTITY & COIL CHECK

Reference-level checks for Siemens 3TX7003-1CB00.

A model-specific view of the 3TX7 interface relay, its 24 V AC/DC designation and the separate Siemens transition paths for AC and DC replacement coils.

ORDER NUMBER3TX7003-1CB00
PRODUCT FAMILY3TX7
HARDWARE ROLEInterface relay
LIFECYCLE SIGNALLegacy transition item
PUBLISHED SIEMENS TRANSITION DATA

Coil-voltage and successor checkpoints

Separate AC and DC before replacement
NOMINAL CONTROL24 V AC/DC
DEVICE TYPEInterface relay
AC TRANSITIONSeparate path
DC TRANSITIONSeparate path
AC SUCCESSORLZS:RT4D4R24
DC SUCCESSORLZS:RT4D4L24
PRODUCT FAMILY3TX7
ORDER REFERENCE3TX7003-1CB00
Identification boundary

Siemens lists 3TX7003-1CB00 in the 3TX7 interface-relay transition documentation with a 24 V AC/DC designation.

Replacement boundary

Siemens maps the AC and DC applications to different LZS successor variants. Confirm the actual coil supply, socket, contacts, wiring and approvals before selection.

02 · COIL SUPPLY & MODERNIZATION DECISIONS

Identify AC or DC service before replacing 3TX7003-1CB00.

The legacy order number covers a 24 V AC/DC designation, while Siemens publishes different LZS transition models for AC and DC use.

AC TRANSITION

LZS:RT4D4R24

Siemens maps the 24 V AC application of the legacy 3TX7003-1CB00 interface relay to LZS:RT4D4R24 in the transition documentation.

DC TRANSITION

LZS:RT4D4L24

Siemens maps the 24 V DC application of the legacy 3TX7003-1CB00 interface relay to LZS:RT4D4L24 in the transition documentation.

INTERFACE RELAY REPLACEMENT CHECK
01 / IDENTIFYRead the installed coil circuit

Record 3TX7003-1CB00, actual AC or DC supply, frequency where applicable, socket and terminal wiring.

→
02 / VERIFYCompare contacts and mounting

Check contact arrangement, switching duty, socket compatibility, dimensions, approvals and accessory requirements.

→
03 / SELECTSelect the correct LZS path

Use LZS:RT4D4R24 for the documented AC path or LZS:RT4D4L24 for the documented DC path after engineering verification.

Do not select a successor from the 24 V value alone; AC and DC coil behavior and the installed socket must be distinguished.

Replacement rule: LZS:RT4D4R24 and LZS:RT4D4L24 are different transition paths and are not interchangeable solely because both are associated with 24 V service.

03 · FAQ

Procurement answers for Siemens 3TX7003-1CB00.

coil type · successor path · socket fit · availability
01

What control-voltage designation does Siemens publish for Siemens 3TX7003-1CB00?

Siemens lists 3TX7003-1CB00 as a 24 V AC/DC interface relay in the official 3TX transition documentation.

02

Which Siemens successor is listed for the AC application of Siemens 3TX7003-1CB00?

Siemens maps the AC path to LZS:RT4D4R24. Confirm actual coil voltage, frequency, socket and contact requirements before ordering.

03

Which Siemens successor is listed for the DC application of Siemens 3TX7003-1CB00?

Siemens maps the DC path to LZS:RT4D4L24. Verify polarity-sensitive circuitry, socket wiring and switching duty before installation.

04

Can the AC and DC successors for Siemens 3TX7003-1CB00 be exchanged freely?

No. Siemens publishes different LZS models for AC and DC. The installed coil supply and socket arrangement must determine the selected transition path.

05

How should legacy availability be requested for Siemens 3TX7003-1CB00?

Request written confirmation of original or successor model, condition, quantity, warranty and the fixed 2-3 DAYS lead time.

06

Which installation details are required when asking for Siemens 3TX7003-1CB00 replacement support?

Send the complete relay and socket labels, actual AC or DC supply, contact diagram, wiring photos, switching load, quantity, destination and required date.

04 · Transaction Cases

Sincere Cooperation, Long-Term Trust

01Russia

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.

02India

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.

03Venezuela

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.

 
05 · After-Sales Support

Support designed around continuity.

Priority lane
Fast Response

We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.

Warranty Support

Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.

Technical Documentation

Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.

Global Customer Service

We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.

Long-term Spare Parts Supply

We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.

06 · Mixed model reference

Mixed specialty automation models.

Document-selected model references arranged as a deliberately mixed field.

01WK60-2E
023.3564.381 367016/1 2000W50 GO3 A00
03201-147-B1L6-RXGRP
04ST-15
053RA2816-0EW20
06TSXP57103M
07193-EA4EB
08025-40900-007 TRE 40-55L
09RTUA08M TK-S014M
10WK45-2E
11CRL-10-HH
12Z4 MK4
1340R02-5
14SEGCM-EXT12D
15RS2-4TX/1FX 943-754-001
16SS-350H
17802M-AY5
18XFL822A
19DCU103
20SC20000
21UN-RS2G LF90074
22KFD2-CRG2-EX1.D
23MBC5100
24Eelectron IO16F01KNX
253500/42M 140734-02
26D4 9006220000
27Alerton EXP-2200
28CX9001-1101 CX9000-N000 CX9000-N010
29W1-A35S B911744
30MR33 / MR33-HW
31QJ71E71-B2
32007301012R
33WCIQ81230 5286-1 IQMK2
34IC660TBD024N IC660EBD024X1
35MDIAL-D
3685616 MKN 050-230
37MMC-110A-F100
38SSM-30-G
39IXA-500DMA
Request a quote

Ask about Siemens 3TX7003-1CB00.

Send the 3TX7003-1CB00 label, AC or DC supply, socket and contact diagram, quantity, destination and required date for a clear reply.

Related Products

Siemens 6SL3120-2TE13-0AA4 SINAMICS S120 Double Motor Module
Siemens 6SL3120-2TE13-0AA4 SINAMICS S120 Double Motor Module

AUTOMATION DATA SHEETSIEMENS / VERIFIED BOOKSIZE · INTERNAL AIR 6SL3120-2TE13-0AA4 Siemens 6SL3120-2TE13-0AA4 is a booksize SINAMICS S120 Double Motor Module with internal air cooling, dual motor outputs, DRIVE-CLiQ connection and extended Safety Integrated support. Brand New OriginalOne Year WarrantyFast Delivery DUAL-AXIS POWER / DRIVE-CLIQTwo motor outputs for a modular SINAMICS S120 drive line-up 600 V DC2 x 3 A400 V 3 AC SUCCESSOR6SL3120-2TE13-0SP0 QUOTE / STOCK / DELIVERYInquire Nowab@mooreplc.com  →

Details
Siemens 6SN1145-1BA02-0CA2 SIMODRIVE 611 36/47 kW Regulated I/R module product image 1
Siemens 6SN1145-1BA02-0CA2 SIMODRIVE 611 36/47 kW Regulated I/R module

Siemens / SIMODRIVE 611 6SN1145-1BA02-0CA2 36/47 kWRegulated I/R module Core overview Siemens 6SN1145-1BA02-0CA2 is a 36/47 kW regulated i/r module for a SIMODRIVE 611 common-DC-link drive group, using internal cooling. Migration check No direct successor stated Function Regulated I/R module Power 36/47 kW Cooling Internal cooling Lifecycle Product cancellation Weight 14.00 kg ONE YEAR WARRANTY FAST DELIVERY WORLDWIDE SHIPPING

Details
Siemens 6SN1145-1BB00-0EA1 SIMODRIVE 611 80/104 kW Regulated I/R module product image 1
Siemens 6SN1145-1BB00-0EA1 SIMODRIVE 611 80/104 kW Regulated I/R module

Siemens / SIMODRIVE 611 6SN1145-1BB00-0EA1 80/104 kWRegulated I/R module Core overview Siemens 6SN1145-1BB00-0EA1 is a 80/104 kW regulated i/r module for a SIMODRIVE 611 common-DC-link drive group, using internal cooling. Migration check No direct successor stated Function Regulated I/R module Power 80/104 kW Cooling Internal cooling Lifecycle Product cancellation Weight 24.00 kg ONE YEAR WARRANTY FAST DELIVERY WORLDWIDE SHIPPING

Details
Siemens 6SN1145-1BB00-0FA1 SIMODRIVE 611 120/156 kW Regulated I/R module product image 1
Siemens 6SN1145-1BB00-0FA1 SIMODRIVE 611 120/156 kW Regulated I/R module

Siemens / SIMODRIVE 611 6SN1145-1BB00-0FA1 120/156 kWRegulated I/R module Core overview Siemens 6SN1145-1BB00-0FA1 is a 120/156 kW regulated i/r module for a SIMODRIVE 611 common-DC-link drive group, using internal cooling. Migration check No direct successor stated Function Regulated I/R module Power 120/156 kW Cooling Internal cooling Lifecycle Product cancellation Weight 27.00 kg ONE YEAR WARRANTY FAST DELIVERY WORLDWIDE SHIPPING

Details
Siemens 6SN1146-1BB00-0DA1 SIMODRIVE 611 55/71 kW Regulated I/R module product image 1
Siemens 6SN1146-1BB00-0DA1 SIMODRIVE 611 55/71 kW Regulated I/R module

Siemens / SIMODRIVE 611 6SN1146-1BB00-0DA1 55/71 kWRegulated I/R module Core overview Siemens 6SN1146-1BB00-0DA1 is a 55/71 kW regulated i/r module for a SIMODRIVE 611 common-DC-link drive group, using external cooling. Migration check No direct successor stated Function Regulated I/R module Power 55/71 kW Cooling External cooling Lifecycle Product cancellation Weight 21.00 kg ONE YEAR WARRANTY FAST DELIVERY WORLDWIDE SHIPPING

Details
Siemens 6SL3210-1KE21-3AF1 SINAMICS G120C PN 5.5 kW Compact Frequency Converter
Siemens 6SL3210-1KE21-3AF1 SINAMICS G120C PN 5.5 kW Compact Frequency Converter

SIEMENS SINAMICS G120CCOMPACT FREQUENCY CONVERTER 6SL3210-1KE21-3AF1 Siemens 6SL3210-1KE21-3AF1 drive. 5.5KW LOW OVERLOAD PNPROFINET FIELDBUS STOINTEGRATED SAFETY FSBFRAME SIZE PRODUCT ENQUIRY Inquire Now Send quantity, destination and installed system details for a precise quotation. ab@mooreplc.com  →WhatsApp +86 18106909650 ◆  Brand New Original ◆  Worldwide Shipping ◆  One Year Warranty

Details
Siemens 6SL3210-1KE23-2UB1 SINAMICS G120C 15 kW Compact Frequency Converter
Siemens 6SL3210-1KE23-2UB1 SINAMICS G120C 15 kW Compact Frequency Converter

SIEMENS SINAMICS G120CFREQUENCY CONVERTER 6SL3210-1KE23-2UB1 Siemens 6SL3210-1KE23-2UB1 drive. 15KW LOW OVERLOAD 11KW HIGH OVERLOAD RTUSERIAL FIELDBUS FSCFRAME SIZE PRODUCT ENQUIRY Inquire Now Send quantity, destination and installed system details for a precise quotation. ab@mooreplc.com  →WhatsApp +86 18106909650 ◆  In Stock ◆  One Year Warranty ◆  Top Quality

Details
Siemens 6SL3210-1KE14-3AF2 Compact Frequency Converter product view
Siemens 6SL3210-1KE14-3AF2 SINAMICS G120C PROFINET Drive

  PRODUCT ENQUIRY Compact PROFINET motor control Inquire Nowab@mooreplc.com → SiemensSINAMICS G120C 6SL3210-1KE14-3AF2 Siemens 6SL3210-1KE14-3AF2 is a 1.5 kW SINAMICS G120C compact drive with integrated PROFINET connectivity for industrial motor control. ●  One Year Warranty●  Fast Delivery●  Worldwide Shipping

Details
Newsletter

Subscrible & Get 15% Discount

Get 15% off your first purchaxse! Plus, be the first to know about sales new product launches and exclusive affers!
By subscribing you agree to our Terms & Conditions and Privacy & Coakies Palicy!

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
submit

Home

Products

WhatsApp

contact