SIEMENS 3RA11404KB450BB4 Combination Starter

( Brand: Siemens ), ( Part Type: Starter ), ( Manufacturer Part Number: 3RA11404KB450BB4 )

Review SIEMENS Combination Starter

The Siemens 3RA11404KB450BB4 Combination Starter is a versatile and reliable electrical component designed for use in various industrial applications. This starter is suitable for both AC and DC motors with ratings ranging from 2.2 kW to 15 kW and features a compact and robust design.

The combination starter is built with high-quality materials, ensuring durability and long service life. It is designed with a modular concept, allowing for easy installation and maintenance. The starter comes with a main contactor, overload relay, and motor protection thermostat, all integrated into a single housing.

The main contactor is a vacuum contactor with a contact rating of 450 VAC, 16 A, and a contact opening time of 0.2 seconds. It is designed to handle heavy currents and provides reliable make and break function for the motor circuit. The overload relay is a bimetallic type with a rating of 450 VAC, 16 A, and a trip current of 15 A. It is designed to protect the motor from overloading and overheating.

The motor protection thermostat is a bimetallic type with a rating of 450 VAC and a temperature rating of 85 C. It is designed to protect the motor from overheating by opening the contactor when the motor temperature reaches a certain level. The starter also features a manual operating handle, which allows for manual operation of the motor in case of power failure or during maintenance.

The Siemens 3RA11404KB450BB4 Combination Starter is designed to meet the highest safety standards and is certified according to UL and CSA standards. It is suitable for use in various industries such as manufacturing, mining, and oil and gas, where reliable and robust electrical components are essential.

The starter is easy to install and operate, with clear markings and easy-to-understand instructions. It is also designed for easy maintenance, with quick-access covers and clear indicators for fault conditions. Overall, the Siemens 3RA11404KB450BB4 Combination Starter is a reliable and versatile electrical component, ideal for industrial applications where reliability and durability are essential.

The Siemens 3RA11404KB450BB4 combination starter is a popular choice for industrial applications due to its advanced features and reliability. Below are some pros and cons that might help you make an informed decision about purchasing this starter:

1. Versatility: This combination starter is suitable for both AC and DC motor applications, making it a cost-effective solution for various industrial automation needs.

2. Compact Design: The device has a compact design, which makes it ideal for installations with limited space.

3. Overload Relay: The overload relay feature ensures the protection of the motor from overcurrent, preventing damage and reducing downtime.

4. Easy Installation: The combination starter comes with a plug-and-play design, making the installation process straightforward and efficient.

5. Diagnostic Capabilities: The device features built-in diagnostic capabilities, which allow for quick identification and resolution of faults.

1. Complexity: The combination starter may be more complex than single-function starters, which could make the installation and troubleshooting process more challenging for less experienced personnel.

2. Cost: Compared to single-function starters, the combination starter may have a higher upfront cost due to its advanced features and versatility.

3. Maintenance: While the device is designed to be reliable, regular maintenance may be required to ensure optimal performance.

4. Compatibility: It is essential to ensure that the combination starter is compatible with the specific motor and control system it will be used with.

In conclusion, the Siemens 3RA11404KB450BB4 combination starter offers several advantages, such as versatility, compact design, overload relay, easy installation, and diagnostic capabilities. However, it also comes with some potential disadvantages, including complexity, cost, maintenance requirements, and compatibility considerations. Ultimately, the decision to purchase this starter depends on the specific needs and resources of your industrial automation application. If you require a versatile and reliable starter that can handle both AC and DC motor applications, this combination starter could be an excellent investment. On the other hand, if you have limited resources or only need a starter for a single motor application, a single-function starter may be a more cost-effective solution.

Details:

This is a New, Old Stock, Siemens 3RA11404KB450BB4 Combination Starter, Rating: 57-75 Coil voltage : 24VDC, INV# 19 2019 .05.

part #: 3ra11404kb450bb4 prices

• $600.75-$715.15

specifications stigstarters:

• brand: Siemens
• part type: Starter
• manufacturer part number: 3RA11404KB450BB4

seller stigstarters:

• rating: 100.0%
• city: Vancouver, Washington
• # reviews: 11096

payments stigstarters:

• credit card: Discover
• other
• wallet: Apple-pay

offer stigstarters:

• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True
• availability: In Stock
• started: October 20, 2025

returns stigstarters:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Buyer

general stigstarters:

• condition: New Open box
• Drives Starters > Starters > Combination Starters

shipping stigstarters:

• service: UPS Ground, USPS Priority Mail, UPS Next Day Air
• cost: $0.00
• type: Calculated
• transit: 2-4 Days
• carrier: UPS, USPS
• class: Standard, Expedited, One-day

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