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

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

Brand
Siemens
Item
Contact Block: 30 mm Panel Mounting Size, 1NO/1NC
Category
Contact Blocks
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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
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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.

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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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14001AA103HA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14001AA103HA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO/1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1FA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Screw Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO/1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1FA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Screw Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1HA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Screw Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU1400-1AA10-1HA0). Key specifications — Switch Action: Momentary; Terminal Connection Type: Screw Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14002AA103CA0). Key specifications — Color: Black/Red; Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14002AA103CA0). Key specifications — Color: Black/Red; Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NC, Momentary, 3SU1 Series, Screw Terminals (MPN 3SU14002AA101CA0). Key specifications — Color: Black/Red; Switch Action: Momentary; Terminal Connection Type: Screw Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14002AA103BA0). Key specifications — Color: Black/Green; Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.
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SIEMENS Contact Block: 22 mm Panel Mounting Size, 1NO, Momentary, 3SU1 Series, Spring Terminals (MPN 3SU14002AA103BA0). Key specifications — Color: Black/Green; Switch Action: Momentary; Terminal Connection Type: Spring Terminals; Brand: SIEMENS; Compatible with Series: 3SU1.