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B&R X20DO4529 X20 4-Channel Relay Output Module

 
B&R · X20 DIGITAL OUTPUT 4 RELAY CHANGEOVERS
ISOLATED RELAY SWITCHING

X20DO4529

B&R X20DO4529 is a four-channel X20 relay output module with isolated changeover contacts for switching DC and AC field loads in industrial control systems.

INSTALLATION MATCH Select the X20TB12 terminal block and X20BM11 or X20BM15 bus module separately; size external suppression for the connected load.
APPLICATION SNAPSHOT Four individually isolated relay outputs for mixed loads
OUTPUTS4 relay channels
CONTACT TYPEChangeover
PRODUCT STATUSOfficial B&R record
SELECTION CONTROLMatch load + suppression
Top QualityFast DeliveryWorldwide Shipping
INQUIRE NOW
  • Worldwide delivery
  • Delivery from stock
  • In stock really means in stock
  • No account required
  • Shipped from the China
Product Specifications
Manufacturer B&R
Item number X20DO4529
Country of Origin Austria
Lead Time 2-3 DAYS
After-Sales Support One Year Warranty
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
TECHNICAL PROFILE

X20DO4529 relay ratings and protection data

Official contact ratings, isolation, service-life, suppression and installation data for the exact relay module.

RELAY CONTACTS & LOAD LIMITS
B&R ID code0x20D9
Output channels4
Output typeRelay changeover contacts
Nominal switching voltage30 VDC / 115 VAC
Maximum switching voltage110 VDC / 125 VAC
Nominal output current1 A at 30 VDC; 0.5 A at 115 VAC
Total module current4 A DC; 2 A AC
Maximum inrush current2 A per channel
Minimum switching load0.01 mA at 10 mVDC
Maximum switching power30 W / 62.5 VA
Contact resistance75 mΩ at 6 VDC / 1 A
Switching delay≤4 ms on and off
Electrical service lifeMinimum 100,000 operations
Mechanical service lifeMinimum 50 million operations at 3 Hz
ISOLATION, PROTECTION & ASSEMBLY
Channel-to-bus insulation1500 VAC
Channel-to-channel insulation1000 VAC
Internal suppressionNo
AC protectionExternal RC network or varistor
DC protectionExternal inverse diode, RC network or varistor
Bus power consumption0.8 W
Terminal blockX20TB12
Bus modulesX20BM11 or X20BM15
Degree of protectionIP20
Module pitch12.5 +0.2 mm
Operating temperature-25 to 60°C horizontal; -25 to 50°C vertical
Storage and transport-40 to 85°C
Relative humidity5 to 95%, non-condensing
ApprovalsCE, UKCA, UL, HazLoc, ATEX and marine approvals
CONTACT VERIFICATIONVerify X20DO4529 and ID 0x20D9

Verify the label, load category and switching frequency.

COMPLETE THE OUTPUT SLICE
X20DO4529 electronic module
X20BM11 or X20BM15 base
X20TB12 terminal block
02
SIGNAL WORKFLOW

How X20DO4529 isolates and switches field loads

A practical view of controller commands, relay contacts, external protection and mixed-voltage applications.

STEP 01Classify each load

Separate resistive, inductive and lamp loads before confirming the permissible contact duty.

STEP 02Add suppression

Place the appropriate protective network at the field load because the module has no internal contact suppression.

STEP 03Check service life

Relate switching current and frequency to the expected electrical endurance of the installed relay channel.

OUTPUT PATHX20 command → relay coil → isolated changeover contact → field loadChoose suppression and duty cycle from the real load, not from voltage alone
USE 01Switch compact contactors

Drive appropriately rated control relays or contactor coils using external suppression.

USE 02Control solenoid circuits

Operate intermittent DC or AC solenoid loads within the documented contact duty.

USE 03Route alarm circuits

Use changeover contacts for alarm, permissive or annunciation paths requiring dry-contact behavior.

USE 04Interface mixed potentials

Keep the four contact channels electrically separated when circuits use different reference potentials.

USE 05Replace panel relays

Consolidate four low-frequency switching functions in one narrow X20 station slice.

USE 06Support maintenance checks

Use output and module indicators to distinguish controller commands from field-circuit problems.

03
PURCHASING FAQ

Questions buyers ask before ordering X20DO4529

Practical purchasing guidance for clearer, more confident decisions.

01
Does B&R X20DO4529 provide normally open and normally closed contact paths?

Yes. Each channel uses a changeover relay contact, allowing the application to select the required contact path through the terminal assignment.

02
Which terminal and bus modules complete B&R X20DO4529?

B&R lists the 12-pin terminal block and compatible standard bus modules. Confirm whether the installed station requires the base version with a node-number switch.

03
What loads are appropriate for B&R X20DO4529?

The module is intended for low-frequency relay switching of suitably rated DC or AC control loads, including contactor, solenoid and signaling circuits.

04
What is the purchasing status of B&R X20DO4529?

The cited B&R product page remains available without a stated discontinuation notice. Stock condition and the exact dispatch date are confirmed with the quotation.

05
Can B&R X20DO4529 replace a transistor-output X20 module directly?

No direct substitution should be assumed. Relay contact topology, switching speed, current, terminal assignment, suppression and application logic differ from transistor outputs.

06
Which details help obtain the correct B&R X20DO4529 manual and quote?

Provide the complete label, installed base and terminal, load voltage and type, switching frequency, required quantity, condition and shipping destination.

04
ABOUT THE SUPPLIER

About Company

A concise view of our sourcing scope, customer support and long-term approach.

GLOBAL AUTOMATION SOURCING

Practical support from identification to delivery

We combine broad product access with careful model verification, transparent communication and responsive service.

20+ years · worldwide customers
01Years of Global Experience

With 20+ years of industry experience, we serve customers worldwide and have built long-term relationships across the UK, Russia, UAE, India, Venezuela, and more.

02Professional Support Team

Our experienced team provides reliable pre-sales and after-sales support, helping customers select suitable products and resolve purchasing concerns.

03Wide Range of Brands

We supply leading automation brands covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.

04Large In-Stock Inventory

A wide range of products is available from stock, including discontinued, obsolete, and hard-to-find parts, helping reduce sourcing time.

05Honesty & Trust

We value long-term cooperation and treat every customer with honesty, respect, responsibility, and care.

06Your Trusted Automation Partner

From a single replacement part to complete automation projects, we are ready to support your needs and build a long-term partnership.

International customer support team working in the Xiamen office01 · PEOPLE
GLOBAL SERVICE TEAM · XIAMEN OFFICE
PEOPLE + PROCESSResponsive support backed by organized sourcing.
Organized warehouse inventory for industrial automation sourcing02 · INVENTORY
IN-STOCK SOURCING · ORGANIZED INVENTORY
05
SERVICE CONTINUITY

After-Sales Support

Documentation, response and long-term spare-parts assistance for global customers.

SUPPORT 01Warranty 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.

SUPPORT 02Technical Documentation

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

SUPPORT 03Fast 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.

SUPPORT 04Global 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.

SUPPORT 05Long-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
CROSS-BRAND CATALOGUE

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Explore additional industrial automation references available through our global sourcing network.

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DIRECT CONTACTStart your X20DO4529 inquirySend the label, load type, switching duty and delivery destination.
SALES MANAGERMay

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