WEIDMULLER 17234700000 Migration-Ready PCB Terminal for Klippon

Overview

WEIDMULLER 17234700000 Migration-Ready PCB Terminal for Klippon Connect Legacy Control Systems

The WEIDMULLER 17234700000 is a Klippon Connect series PCB terminal block engineered for direct integration into legacy control panel wiring systems and retrofit automation projects. As industrial facilities transition away from discontinued terminal block platforms, the 17234700000 provides a mechanically and electrically compatible replacement that preserves existing wiring layouts, reduces re-engineering time, and minimizes control cabinet downtime during system migration.

This terminal block is widely deployed in control cabinet upgrades where original WEIDMULLER Klippon terminal strips have reached end-of-life or where spare parts availability has become a procurement risk. Its standardized pitch, conductor cross-section compatibility, and PCB mounting footprint allow direct substitution without modifying the PCB layout or re-routing field wiring. Engineers performing panel retrofits can confirm wiring compatibility by verifying conductor gauge, insulation strip length, and clamping torque specifications against the original installation records before committing to a full cabinet changeover.

During retrofit planning, it is common to audit the full terminal block assembly alongside associated components such as the WEIDMULLER WPE 2.5 feed-through terminal blocks, WEIDMULLER ZQV 4/2AN disconnect terminal blocks, and WEIDMULLER W-Series end brackets and partition plates. These components share the same DIN rail mounting system and are frequently replaced as a coordinated set to maintain consistent wiring density and labeling continuity across the control cabinet. Confirming that the replacement terminal block series matches the existing DIN rail profile and end-stop configuration is a critical pre-installation step that prevents rework during commissioning.

For control systems that integrate WEIDMULLER terminal blocks with PLC I/O modules — particularly in Siemens S7-300 or S7-400 backplane configurations — the terminal block pitch and wiring channel depth must be verified against the I/O module’s field wiring connector specifications. In many legacy panel designs, the 17234700000 is positioned adjacent to signal conditioning modules, WEIDMULLER ACT20P signal isolators, or WEIDMULLER PRO MAX power supply units, all of which share the same DIN rail section. Replacing the terminal block without confirming the available rail space and adjacent module clearance can result in installation interference that delays system restart.

When the retrofit involves communication protocol migration — for example, transitioning from hardwired relay logic to PROFIBUS DP or PROFINET-based distributed I/O — the terminal block wiring layout must be re-documented to reflect the new signal assignment. The 17234700000 supports this process by providing a stable, labeled wiring point that can be re-assigned during the protocol migration without requiring PCB rework. Field engineers should verify that the new I/O module’s terminal assignment matches the existing wiring color code and that the updated wiring diagram is approved before energizing the upgraded panel.

Firmware compatibility is not directly applicable to passive terminal blocks; however, the 17234700000 is frequently installed in panels undergoing PLC firmware upgrades where the control program logic is being ported from legacy Step 5 or Step 7 code to TIA Portal. In these projects, the terminal block serves as the physical interface between the updated PLC I/O configuration and the existing field instrumentation. Confirming that the terminal block wiring matches the updated I/O address mapping in the TIA Portal hardware configuration is a mandatory commissioning step before the upgraded program is transferred to the CPU.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A structured retrofit plan for panels incorporating the WEIDMULLER 17234700000 should begin with a full inventory of the existing terminal block assembly, including the number of poles, wiring positions, and any integrated disconnect or fuse-holder positions. In many legacy control cabinets, the Klippon PCB terminal blocks are installed alongside WEIDMULLER WTR 2.5 feed-through terminals, WEIDMULLER ZDU 2.5 double-deck terminals, and WEIDMULLER SAK 2.5 screw-clamp terminals, all of which may require simultaneous replacement if the cabinet is being fully re-wired.

Power supply verification is a mandatory step before installing replacement terminal blocks in panels that include WEIDMULLER PRO MAX 24VDC power supply modules. The replacement terminal block must be rated for the panel’s operating voltage and current load, and the power supply’s output capacity must be confirmed against the updated I/O load calculation. If the retrofit includes adding new I/O modules or expanding the terminal block count, the power supply capacity must be recalculated to prevent voltage drop under full load.

For panels that include WEIDMULLER ACT20P signal isolators or WEIDMULLER UR20 remote I/O modules, the terminal block wiring must be coordinated with the signal isolator’s input and output terminal assignments. The 17234700000 is compatible with standard 24VDC signal circuits and can be used as the field-side wiring interface for both analog and digital I/O channels. Confirming the signal isolator’s terminal pitch and wiring polarity before installation prevents cross-wiring errors that can damage field instruments during commissioning.

Installation space confirmation is critical in densely populated control cabinets. The 17234700000’s PCB footprint and DIN rail mounting dimensions must be verified against the available cabinet space, including clearance for cable duct routing and door closure. In retrofit projects where the cabinet layout is being reorganized, it is recommended to create a scaled panel layout drawing before ordering replacement components to confirm that the new terminal block assembly fits within the existing cabinet envelope.

Downtime Control During System Migration

Minimizing control system downtime during a terminal block retrofit requires a phased replacement strategy that preserves the original wiring connections until the replacement components are verified and ready for installation. The recommended approach is to photograph and document the existing wiring layout, including wire labels, terminal numbers, and conductor routing, before disconnecting any field wiring. This documentation serves as the reference for re-wiring the replacement terminal block and allows the commissioning engineer to verify wiring continuity against the original panel drawing.

For production lines where continuous operation is required, a parallel wiring strategy can be used to install the replacement WEIDMULLER 17234700000 terminal block alongside the existing assembly before transferring field wiring one circuit at a time. This approach allows the control system to remain operational during the transition and reduces the risk of wiring errors that could cause unplanned shutdowns. Once all field wiring has been transferred and verified, the original terminal block assembly can be removed and the panel drawing updated to reflect the new configuration.

Protecting the original PLC program logic during a terminal block retrofit is essential for maintaining control continuity. Before beginning any wiring work, the current PLC program should be backed up to an offline storage device and the I/O address mapping documented. If the retrofit involves reassigning I/O addresses — for example, when migrating from a legacy S7-300 configuration to a new ET 200SP distributed I/O system — the updated I/O mapping must be verified in the TIA Portal hardware configuration before the new program is transferred to the CPU. A controlled test run with the updated program should be performed under supervision before returning the system to automatic operation.

All replacement terminal blocks supplied by KNMKS are covered by a support terms confirmed by quotation from the date of shipment. Each unit undergoes pre-shipment functional inspection to verify clamping mechanism integrity, conductor insertion force, and insulation resistance. Customers requiring expedited delivery for emergency retrofit projects are encouraged to contact the sales team directly to confirm stock availability and lead time before placing an order.

Retrofit Support FAQ

Q1: Is the WEIDMULLER 17234700000 a direct replacement for discontinued Klippon PCB terminal blocks?
A: Yes. The 17234700000 is designed as a direct substitution for legacy Klippon Connect PCB terminal blocks with matching pitch and conductor cross-section specifications. Before ordering, confirm the terminal pitch, pole count, and PCB footprint dimensions against the original component datasheet or physical measurement to ensure dimensional compatibility.

Q2: What wiring checks are required before installing the replacement terminal block?
A: Verify conductor gauge, insulation strip length, clamping torque specification, and wiring polarity against the original panel drawing. Perform a point-to-point continuity test on all field wiring connections after installation and before energizing the panel. Confirm that the terminal block’s voltage and current rating matches the panel’s operating parameters.

Q3: Can the 17234700000 be used in panels with PROFIBUS or PROFINET communication systems?
A: Yes. As a passive wiring interface, the 17234700000 is compatible with any communication protocol used in the control panel. It does not affect the communication network configuration and can be used as the field-side wiring point for both PROFIBUS DP and PROFINET I/O systems without modification.

Q4: What is the support terms coverage and what does the pre-shipment inspection include?
A: All units are covered by a support terms confirmed by quotation from the date of shipment. Pre-shipment inspection includes verification of clamping mechanism integrity, conductor insertion force, and insulation resistance. Units that fail inspection are replaced before shipment. For emergency retrofit orders, contact [email protected] or +86 18359268345 to confirm stock availability and expedited shipping options.

© 2026 KNMKS. All rights reserved. Original Source: https://knmks.com | Contact: [email protected] | +86 18359268345

Product Identification

Brand / Ecosystem

Other Brands
Assorted Brands

Model / Series

17234700000
Assorted Series

Product Family

HMI & Displays

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Display range

Operator panels and touch screens

Common needs

Screen size, interface and version matching

Project support

Retrofit, spare unit and panel replacement

Inquiry Support

• Panel size and interface confirmation
• Replacement unit inquiry for discontinued HMIs
• Protective packaging for display shipment

What to Send Us

• Brand and exact model number: Other Brands 17234700000
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference