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Siemens Contact Block: 30 mm Panel Mounting Size, 1NC, Momentary, Universal Series - Contact Blocks
SiemensContact Blocks

Siemens Contact Block: 30 mm Panel Mounting Size, 1NC, Momentary, Universal Series

The SIEMENS Contact Block is a 30 mm panel mounting size contact block from the Universal series. It features a momentary switch action and screw terminals for secure wiring connections. This component is identified…

SKU 3G-OTH-32494

Also listed as: 52 BAJ · 52-BAJ

Brand
Siemens
Item
Contact Block: 30 mm Panel Mounting Size, 1NC, Momentary, Universal Series
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
52BAJ
Type
1NC, Momentary, Universal Series, Screw Terminals
Switch Action
Momentary
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 is a 30 mm panel mounting size contact block from the Universal series. It features a momentary switch action and screw terminals for secure wiring connections. This component is identified by manufacturer part number 52BAJ.

Frequently Asked Questions

What is the SIEMENS 52BAJ contact block used for?

The SIEMENS 52BAJ contact block is used in industrial control panels for momentary switching applications. It provides a single normally-closed (1NC) circuit and is compatible with the Universal series of 30 mm panel mounting devices, commonly found in manufacturing and process automation.

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

The SIEMENS 52BAJ contact block has a 30 mm panel mounting size, 1NC contact configuration, momentary switch action, and screw terminals for wiring. It is part of the Universal series and is identified by manufacturer part number 52BAJ. The brand is SIEMENS.

Where to buy the SIEMENS 52BAJ contact block worldwide?

You can source the SIEMENS 52BAJ contact block through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this component.

How to install the SIEMENS 52BAJ contact block?

To install the SIEMENS 52BAJ contact block, mount it onto a compatible 30 mm panel opening in the Universal series operator. Secure the screw terminals with the appropriate torque for reliable connections. Always follow standard industrial safety practices and consult the manufacturer's installation guidelines.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Contact Block: 30 mm Panel Mounting Size, 1NO/1NC, Momentary/Make Before Break (MPN 52BJK)
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14002AA103CA0)
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1HA0)
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO/1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1FA0)
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO/1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1FA0)

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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU14002AA101BA0)
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1CA0)
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1CA0)
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14001AA103BA0)
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14001AA103BA0)