Product Description

Siemens SIRIUS Varistor Surge Suppressor 48–127V AC / 70–150V DC for 3RT2.2 Contactors – 3RT2926-1BC00

Product Description

The Siemens 3RT2926-1BC00 is a genuine Siemens SIRIUS Varistor Surge Suppressor designed for compatible Siemens 3RT2.2 contactors. This contactor coil surge suppressor is used to reduce voltage transients generated when an inductive contactor coil is switched, helping protect the control circuit and supporting reliable contactor operation. Siemens specifies this accessory for S0-size 3RT2.2 contactors.

The 3RT2926-1BC00 varistor surge suppressor supports 48–127V AC at 50/60Hz and 70–150V DC control supply voltage. Its varistor-based surge suppression makes it suitable for compatible AC and DC contactor control circuits used in industrial motor control, automation panels, machine control systems, OEM equipment, and electrical control applications.

Designed for convenient installation, the Siemens SIRIUS 3RT2926-1BC00 uses clip-on mounting and can be installed in any mounting position on compatible contactors. Its compact dimensions of 19 mm × 30 mm × 12 mm and approximately 0.005 kg net weight make it suitable for space-efficient installation inside industrial control panels.

The Siemens 3RT2926-1BC00 surge suppressor is suitable for motor starter assemblies, Motor Control Centers (MCC), DOL motor starters, industrial automation panels, PLC-controlled machinery, OEM control cabinets, factory automation systems, electrical control panels, and industrial switching applications using compatible Siemens 3RT2.2 contactors.

At SB Smart, Faridabad, we supply genuine Siemens SIRIUS surge suppressors, contactors, overload relays, motor protection devices, soft starters, MCCBs, MCBs, and industrial automation products with competitive pricing, GST invoices, technical support, bulk-order assistance, secure packaging, and delivery across Faridabad, Delhi NCR, and major cities throughout India.

Key Features

• Genuine Siemens SIRIUS Varistor Surge Suppressor

• Model: 3RT2926-1BC00

• Product Type: Varistor Surge Suppressor

• Designed for Siemens 3RT2.2 Contactors

• Contactor Size: S0

• AC Control Voltage: 48–127V AC

• AC Frequency: 50/60Hz

• DC Control Voltage: 70–150V DC

• Control Supply Type: AC/DC

• Varistor-based surge suppression

• Helps suppress contactor coil switching transients

• Clip-on mounting

• Mounting position: Any

• Dimensions: 19 × 30 × 12 mm

• Net Weight: approximately 0.005 kg

• Operating temperature: -25°C to +60°C

• Storage temperature: -40°C to +80°C

• CE / UL / CSA suitability

• Genuine Siemens SIRIUS accessory

Applications

• Siemens 3RT2.2 Contactor Protection

• Industrial Motor Control Panels

• Motor Starter Assemblies

• Motor Control Centers (MCC)

• DOL Motor Starters

• Industrial Automation Panels

• PLC-Controlled Machinery

• Factory Automation Systems

• OEM Control Cabinets

• Machine Control Systems

• Electrical Control Panels

• Manufacturing Equipment

• Contactor Coil Surge Suppression

• AC/DC Contactor Control Circuits

• Industrial Switching Applications

Benefits

• Helps suppress voltage transients generated during contactor coil switching

• Helps reduce electrical stress on connected control components

• Supports reliable contactor control operation

• Suitable for 48–127V AC control circuits

• Suitable for 70–150V DC control circuits

• Varistor technology provides effective surge suppression

• Designed specifically for Siemens SIRIUS 3RT2.2 contactors

• Clip-on design simplifies installation

• Compact construction saves valuable panel space

• Supports reliable industrial control-system operation

• Suitable for motor control and automation applications

• Genuine Siemens SIRIUS accessory

• Useful for OEM, panel-building, maintenance and repair applications

Frequently Asked Questions (FAQs)

Q1. What is Siemens 3RT2926-1BC00 used for?

The Siemens 3RT2926-1BC00 is a varistor surge suppressor used with compatible Siemens SIRIUS 3RT2.2 contactors to help suppress voltage transients associated with contactor coil switching.

Q2. What AC voltage is supported by 3RT2926-1BC00?

The 3RT2926-1BC00 supports 48–127V AC at both 50Hz and 60Hz.

Q3. What DC voltage is supported?

This Siemens varistor surge suppressor supports a 70–150V DC control supply voltage.

Q4. Which contactors are compatible with 3RT2926-1BC00?

The 3RT2926-1BC00 is designed for compatible Siemens SIRIUS 3RT2.2 contactors and is specified for S0 contactor size.

Q5. What type of surge suppressor is 3RT2926-1BC00?

The 3RT2926-1BC00 uses a varistor as its surge suppression technology and is designed for AC/DC control supplies within its specified voltage ranges.

Q6. Can 3RT2926-1BC00 be used with both AC and DC control supplies?

Yes. Siemens specifies the device for 48–127V AC at 50/60Hz and 70–150V DC, provided the compatible contactor and control circuit are within the specified voltage ranges.

Q7. How is the 3RT2926-1BC00 mounted?

The surge suppressor uses clip-on mounting and can be installed in any mounting position on the compatible contactor.

Q8. What are the dimensions of Siemens 3RT2926-1BC00?

The specified dimensions are 19 mm height × 30 mm width × 12 mm depth.

Q9. What is the operating temperature range?

The specified operating ambient temperature range is -25°C to +60°C, while the storage temperature range is -40°C to +80°C.

Q10. Is 3RT2926-1BC00 a complete contactor?

No. The 3RT2926-1BC00 is a varistor surge suppressor accessory, not a complete contactor. It is designed for use with compatible Siemens SIRIUS 3RT2.2 contactors.

Q11. Why buy Siemens 3RT2926-1BC00 from SB Smart?

SB Smart, Faridabad supplies genuine Siemens SIRIUS surge suppressors, contactors, overload relays, motor protection products, auxiliary accessories, and industrial automation components with competitive pricing, GST invoices, technical support, bulk-order assistance, secure packaging, and delivery across Faridabad, Delhi NCR, and India.