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Siemens Contact Block: 30 mm Panel Mounting Size, 1NO/1NC - Contact Blocks
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Siemens Contact Block: 30 mm Panel Mounting Size, 1NO/1NC

The SIEMENS Contact Block (MPN 52BJK) is a 30 mm panel mounting size contact block with 1NO/1NC contacts. It features a momentary/make before break switch action and screw terminal connections. This universal-series…

SKU 3G-OTH-32889

Also listed as: 52 BJK · 52-BJK

Brand
Siemens
Item
Contact Block: 30 mm Panel Mounting Size, 1NO/1NC
Category
Contact Blocks
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
52BJK
Type
1NO/1NC, Momentary/Make Before Break
Switch Action
Momentary/Make Before Break
Compatible with Series
Universal
Terminal Connection Type
Screw Terminals

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Contact Block (MPN 52BJK) is a 30 mm panel mounting size contact block with 1NO/1NC contacts. It features a momentary/make before break switch action and screw terminal connections. This universal-series compatible component is designed for industrial control applications.

Frequently Asked Questions

What is the SIEMENS 52BJK contact block used for?

The SIEMENS 52BJK contact block is used in industrial control panels for momentary switching with make-before-break action. It is commonly applied in pushbutton stations, selector switches, and control circuits where reliable signal transfer is required. Its 1NO/1NC configuration supports both normally open and normally closed functions.

What are the specifications of the SIEMENS 52BJK contact block?

The SIEMENS 52BJK contact block has a 30 mm panel mounting size, 1NO/1NC contacts, and momentary/make before break switch action. It uses screw terminals for wiring and is compatible with the Universal series. The manufacturer part number is 52BJK, and it is produced by SIEMENS.

Where to buy the SIEMENS 52BJK contact block worldwide?

You can source the SIEMENS 52BJK contact block worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine SIEMENS components for industrial applications.

How to install the SIEMENS 52BJK contact block?

To install the SIEMENS 52BJK contact block, mount it onto a 30 mm panel opening and secure it with the provided hardware. Connect wires to the screw terminals according to your circuit diagram, ensuring proper torque. Test the momentary/make before break action before energizing the panel.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens contact blocks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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