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Siemens Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series - Contact Blocks
SiemensContact Blocks

Siemens Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series

The SIEMENS Contact Block is a 22 mm panel mounting size contact block from the 3SU1 series, featuring a momentary switch action and screw terminals. This 1NC (normally closed) component is designed for use with…

SKU 3G-OTH-32420

Brand
Siemens
Item
Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series
Category
Contact Blocks
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Technical Specifications

Siemens
Manufacturer Part Number
3SU1400-1AA10-1CA0
Series
3SU1
Type
1NC, Momentary, Screw Terminals
Switch Action
Momentary
Compatible with Series
3SU1
Terminal Connection Type
Screw Terminals
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Contact Block is a 22 mm panel mounting size contact block from the 3SU1 series, featuring a momentary switch action and screw terminals. This 1NC (normally closed) component is designed for use with compatible 3SU1 series devices, with the manufacturer part number 3SU1400-1AA10-1CA0.

Frequently Asked Questions

What is the SIEMENS 3SU1400-1AA10-1CA0 contact block used for?

This SIEMENS contact block is used as a normally closed (1NC) momentary switching element in 22 mm panel-mount control stations. It is compatible with the 3SU1 series and is commonly applied in industrial machinery, conveyor systems, and process control panels for emergency stop or interlock circuits.

What are the specifications of the SIEMENS 3SU1400-1AA10-1CA0?

The SIEMENS 3SU1400-1AA10-1CA0 is a 22 mm panel-mount contact block from the 3SU1 series. It has 1NC contact, momentary switch action, and screw terminal connections. The manufacturer part number is 3SU1400-1AA10-1CA0. It is designed for use with compatible 3SU1 series operators and holders.

Where to buy the SIEMENS 3SU1400-1AA10-1CA0 worldwide?

3G Electric supplies the SIEMENS 3SU1400-1AA10-1CA0 contact block worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 3SU1 series component.

How to install the SIEMENS 3SU1400-1AA10-1CA0 contact block?

Install the SIEMENS 3SU1400-1AA10-1CA0 by mounting it behind a 22 mm panel cutout using the compatible 3SU1 series holder. Connect wires to the screw terminals per your control circuit diagram. Ensure the normally closed (1NC) contact is correctly wired for momentary operation. Follow SIEMENS installation guidelines for torque and clearance.

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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