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Siemens 3TH4382-0LC8 Contactor Relay - 33V DC, 8 NO/2 NC, Varistor

Siemens 3TH4382-0LC8 Contactor Relay, 33V DC, 8 NO/2 NC, Varistor.

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ManufacturerSiemens

Part number3TH4382-0LC8

Manufacturer Siemens

Part Number 3TH4382-0LC8

Series 3TH43

Rating 100E

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8 Normally Open Contacts 2 Normally Closed Contacts Screw Terminal Connections 33V DC Coil Voltage Integrated Varistor for Surge Protection EN 50011 Compliant

Product description

The Siemens 3TH4382-0LC8, rated as 100E, is a DC operated contactor relay featuring 8 normally open (NO) and 2 normally closed (NC) contacts. It uses screw terminals for connection and operates with a 33V DC coil. This model includes an integrated varistor for enhanced protection against voltage surges.

This relay is designed for robust DC control applications in industrial automation, power distribution, and complex control panels. The combination of 8 NO contacts and built-in surge suppression makes it suitable for environments where reliability and protection are paramount.

Stanlo Automation, a veteran-owned surplus parts distributor, is your source for quality industrial automation components. We offer the Siemens 3TH4382-0LC8 at competitive prices with fast shipping, ensuring your automation systems remain operational.

Technical specifications

Manufacturer	Siemens
Part Number	3TH4382-0LC8
Series	3TH43
Rating	100E
Contacts	8 NO + 2 NC
Terminals	Screw
Coil Voltage	33V DC
Operation	DC Operation
Features	Integrated Varistor
Standard	EN 50011

Common applications

Complex DC Control

Industrial Automation

Power Distribution Panels

Control Systems with Surge Concerns

High Pole Count Relay Needs

Motor Control

Compatible systems

DC control circuits requiring 33V DC switching EN 50011 compatible systems needing surge suppression

Also known as

Siemens 3TH4382-0LC8 Siemens Contactor Relay 100E Siemens 33V DC Relay with Varistor

Replaces / compatible with

Suitable for replacing Siemens 100E series DC contactor relays, especially in applications demanding overvoltage protection. Compatible with EN 50011 systems.

Technical note

Expert tip

While the integrated varistor offers protection, always ensure the 33V DC power supply to the 3TH4382-0LC8 is properly conditioned to minimize potential coil stress.

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Frequently asked questions

What is the benefit of the integrated varistor on the Siemens 3TH4382-0LC8?

The integrated varistor in the Siemens 3TH4382-0LC8 acts as a protective device against transient overvoltages. This helps safeguard the relay's coil and connected control circuitry from damage caused by voltage spikes, improving system reliability.