Product Description

Siemens 5SP4492-7RC MCB 125A 4-Pole C Characteristic 10kA

The Siemens 5SP4492-7RC is a SENTRON 5SP4 miniature circuit breaker (MCB) with a 125 A rated current, 4-pole configuration, C tripping characteristic and 10 kA rated short-circuit breaking capacity. Siemens lists the product as an active MCB with a 400 V AC rated supply voltage and 50/60 Hz frequency.

This MCB is designed to provide protection against overload and short-circuit conditions in industrial and infrastructure electrical installations. Its 4-pole configuration makes it suitable for applications where all four conductors need to be switched/protected as specified by the installation design.

Key Features

• Siemens 5SP4492-7RC
• SENTRON 5SP4 miniature circuit breaker
• Rated current: 125 A
• 4-pole (4P)
• Tripping characteristic: C
• Rated voltage: 400 V AC
• Rated frequency: 50/60 Hz
• Short-circuit breaking capacity: 10 kA
• Insulation voltage: 440 V AC
• Energy limitation class: 3
• Mechanical service life: typically 10,000 operating cycles
• IP20 with connected conductors
• IP40 in the handle area with distribution cover
• Suitable for additional components such as auxiliary switches and fault signal contacts.

Siemens' technical data confirms the 125 A operating current at 30°C. The current-carrying capability is temperature-dependent; Siemens lists 118.75 A at 40°C, 111.875 A at 50°C and 105 A at 60°C.

Applications

The Siemens 5SP4492-7RC can be used in:

• Industrial distribution panels
• Electrical control panels
• Industrial power distribution
• Infrastructure installations
• Manufacturing facilities
• Commercial electrical systems
• OEM control panels
• Machinery power circuits
• Building electrical distribution
• Industrial automation systems
• Main and sub-distribution applications

Benefits

The 5SP4492-7RC provides high-current circuit protection with a 125 A rating and 10 kA short-circuit breaking capacity. Its C characteristic makes it suitable for circuits where the connected loads can have moderate inrush currents, subject to proper protection-system design.

The 4-pole configuration provides switching/protection across four poles, while the SENTRON 5SP4 platform supports the installation of compatible additional components such as auxiliary switches and fault signal contacts.

The device is also designed for infrastructure and industrial applications, and Siemens specifies touch protection and tunnel terminals for the product.

Why Buy Siemens 5SP4492-7RC from SB Smart?

SB Smart supplies Siemens industrial electrical and automation products for panel builders, OEMs, electrical contractors, system integrators and industrial maintenance teams across India.

The Siemens 5SP4492-7RC can be sourced for customers in Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Ghaziabad, Mumbai, Pune, Ahmedabad, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Jaipur, Chandigarh, Ludhiana and other major industrial locations across India.

FAQs

1. What is Siemens 5SP4492-7RC?
It is a Siemens SENTRON 5SP4 miniature circuit breaker rated at 125 A, 4-pole, C characteristic and 10 kA breaking capacity.

2. What is the rated current of 5SP4492-7RC?
The rated current is 125 A at 30°C.

3. How many poles does this MCB have?
It is a 4-pole (4P) MCB.

4. What does C characteristic mean?
The C tripping characteristic defines the magnetic instantaneous-tripping range of the MCB and is commonly selected for circuits with moderate starting/inrush currents.

5. What is the breaking capacity?
The Siemens 5SP4492-7RC has a 10 kA rated short-circuit breaking capacity according to EN 60898.

6. What is the rated voltage?
The rated supply voltage is 400 V AC, with a 50/60 Hz operating frequency.

7. Can accessories be added to this MCB?
Yes. The 5SP4 platform supports compatible additional components including auxiliary switches and fault signal contacts.