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Siemens Phase Barrier: Phase Barrier - Accessories for Siemens Models
SiemensAccessories for Siemens Models

Siemens Phase Barrier: Phase Barrier

The SIEMENS Phase Barrier, part number 3RV29281K, is an accessory designed for use with SIRIUS 3RV2 Motor Starter Protectors. This component provides electrical isolation between phases within the motor starter…

SKU 3G-OTH-39576

Brand
Siemens
Item
Phase Barrier: Phase Barrier
Category
Accessories for Siemens Models
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Technical Specifications

Siemens
Manufacturer Part Number
3RV29281K
Compatible with Series
SIRIUS 3RV2 Motor Starter Protectors
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Phase Barrier, part number 3RV29281K, is an accessory designed for use with SIRIUS 3RV2 Motor Starter Protectors. This component provides electrical isolation between phases within the motor starter assembly. It is a genuine Siemens product, ensuring compatibility and proper fitment with the specified series.

Frequently Asked Questions

What is the SIEMENS Phase Barrier 3RV29281K used for?

The SIEMENS Phase Barrier 3RV29281K provides electrical isolation between phases inside SIRIUS 3RV2 Motor Starter Protectors. It prevents arcing and short circuits in industrial motor control panels, ensuring safe operation of machinery in manufacturing, HVAC, and process automation environments.

What are the specifications of the SIEMENS Phase Barrier 3RV29281K?

The SIEMENS Phase Barrier 3RV29281K is a genuine Siemens accessory with manufacturer part number 3RV29281K. It is compatible exclusively with the SIRIUS 3RV2 series of Motor Starter Protectors. This component is designed for phase-to-phase isolation and fits directly into the protector assembly without modification.

Where to buy the SIEMENS Phase Barrier 3RV29281K worldwide?

3G Electric supplies the SIEMENS Phase Barrier 3RV29281K worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver genuine Siemens components to any country.

How to install the SIEMENS Phase Barrier 3RV29281K?

To install the SIEMENS Phase Barrier 3RV29281K, first de-energize the SIRIUS 3RV2 Motor Starter Protector. Insert the barrier between the phase terminals as shown in the Siemens mounting guide, ensuring it snaps securely into place. Verify isolation with a multimeter before re-energizing. Always follow Siemens installation instructions for safety.

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 accessories for siemens models. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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