Product Description

Siemens 3LD42052BB500RC0 Breaker Control Switch – 25A, 1 Trip + 1 Close

The Siemens 3LD42052BB500RC0 is a 3LD4 Breaker Control Switch (TNC switch) designed for circuit-breaker control applications in low-voltage and medium-voltage electrical panels. The 3LD4 Breaker Control Switch range is designed with Trip, Neutral and Close positions for operating circuit breakers through auxiliary releases.

This model is the 25A version with 1 Trip + 1 Close contact arrangement. It features a pistol-grip handle and spring-return operation, making it suitable for manual breaker-control applications where clear Trip and Close commands are required. The range is tested according to IEC 60947-5-1.

Key Features

• Siemens 3LD42052BB500RC0 Breaker Control Switch
• 3LD4 Control Switches series
• Rated current: 25A
• Contact configuration: 1 Trip + 1 Close
• Trip – Neutral – Close (TNC) operating positions
• Pistol-grip handle
• Spring-return operation
• Cam-operated rotary switching mechanism
• Designed for circuit-breaker control circuits
• Suitable for LV and MV panels
• Tested according to IEC 60947-5-1

Applications

The Siemens 3LD42052BB500RC0 can be considered for:

• Low-voltage switchgear panels
• Medium-voltage control panels
• Circuit-breaker control circuits
• Power distribution panels
• Industrial electrical panels
• Switchgear control systems
• Utility and infrastructure installations
• Motor Control Centers (MCCs)
• Industrial automation systems
• Electrical maintenance and replacement applications

Benefits

The Trip-Neutral-Close arrangement provides dedicated operating positions for breaker control, allowing the operator to issue Trip or Close commands through the appropriate auxiliary release circuits.

With its 1 Trip + 1 Close configuration, this 25A model is suitable for breaker-control circuits that require one trip command and one close command. The spring-return mechanism helps return the control switch after the operating command.

The pistol-grip handle provides convenient manual operation, while the cam-operated mechanism is designed for dependable switching performance in industrial control applications.

For replacement or new-panel applications, verify the breaker-control circuit, contact configuration, current rating and compatibility with the existing switchgear before selection.

Suitable for Customers Across India

SB Smart supplies industrial electrical and automation products across India, including Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Ghaziabad, Manesar, Mumbai, Pune, Ahmedabad, Vadodara, Surat, Jaipur, Chandigarh, Ludhiana, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Indore and Lucknow, along with other major industrial locations.

The Siemens 3LD42052BB500RC0 can be considered by panel builders, switchgear manufacturers, OEMs, electrical contractors, system integrators, utility contractors and industrial maintenance teams looking for Siemens 3LD4 breaker control switches.

FAQs

1. What is Siemens 3LD42052BB500RC0?
It is a Siemens 3LD4 Breaker Control Switch, also known as a TNC (Trip-Neutral-Close) switch.

2. What is the current rating?
The 3LD42052BB500RC0 is rated at 25A.

3. What is its contact configuration?
This model has a 1 Trip + 1 Close configuration.

4. What are the operating positions?
The switch provides Trip, Neutral and Close positions for circuit-breaker control.

5. Where is it used?
It is designed for circuit-breaker control circuits in low-voltage and medium-voltage panels.

6. What type of handle does it have?
The 3LD4 Breaker Control Switch range uses a pistol-grip handle and spring-return operation.

7. Which standard is it tested according to?
The Breaker Control Switch range is tested according to IEC 60947-5-1.

8. Can I buy Siemens 3LD42052BB500RC0 from SB Smart?
Yes. SB Smart lists the 3LD4 Breaker Control Switch range for purchase and enquiry, subject to current availability