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Siemens 5ST3666-2HG 50mm² Busbar Connecting Terminal

Siemens 5ST3666-2HG 50mm² busbar connecting terminal.

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ManufacturerSiemens

Part number5ST3666-2HG

Connection 50 mm²

Function Busbar Connection

Standards UL 489

Voltage 480Y/277V

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50 mm² connection capacity For direct busbar connection UL 489 compliant Designed for 5SJ4 series High-current capability

Product description

The Siemens 5ST3666-2HG is a high-capacity connecting terminal engineered for direct busbar connections. It features a substantial 50 mm² connection size and conforms to UL 489 standards for 480Y/277V systems. This terminal is intended for integration with Siemens LS 5SJ4...-.HG circuit breakers.

This component is designed for applications requiring a high-current busbar connection, typically found in main distribution panels or heavy-duty industrial machinery. Its larger connection size ensures a secure and reliable link for significant power loads.

Stanlo Automation is your trusted source for the Siemens 5ST3666-2HG. As a veteran-owned surplus distributor, we ensure quality components and efficient service to keep your automation systems running.

Technical specifications

Connection	50 mm²
Function	Busbar Connection
Standards	UL 489
Voltage	480Y/277V
Series	5SJ4
Type	Connecting Terminal

Common applications

Main Distribution Panels

Industrial Switchgear

Heavy Machinery Power

High-Capacity Busbars

Electrical Infrastructure

Compatible systems

Siemens LS 5SJ4...-.HG circuit breakers

Also known as

Siemens 5ST36662HG 50mm2 Busbar Terminal

Replaces / compatible with

This terminal is specifically designed for busbar connections with Siemens LS 5SJ4...-.HG series circuit breakers. Compatible with Siemens busbar systems.

Technical note

Expert tip

Ensure the busbar is clean and properly aligned before connecting the 50 mm² terminal to guarantee optimal electrical contact and performance.

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Frequently asked questions

What is the application for the Siemens 5ST3666-2HG busbar connecting terminal?

The Siemens 5ST3666-2HG terminal is used for high-current busbar connections, often in main distribution panels or for large industrial equipment. It supports a 50 mm² connection and is UL 489 compliant for 480Y/277V systems.