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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, Adjustable Current 4.5-6.3A, 6.3A Contact Rating, 4 kW 3RU2126-1GB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 87mm |
| Model | 3RU2126-1GB0 |
| Depth | 73mm |
| IP Rating | IP65, IP55 |
| Width | 45mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Power Rating | 4kW |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Screw |
| Standards/Approvals | IEC, CCC, CE, REACH, WEEE (2012/19/EU), EAC, UL, UKCA, RoHS |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 6.3A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3P |
| FLC Motor Rating | 4.5, 6.3A |
| Adjustable Current Range | 4.5 → 6.3 A |
Key Features
- Offers thermal overload protection with adjustable current between 4.5 and 6.3 amperes.
- Features one normally open and one normally closed auxiliary contact.
- Supports direct mount installation with screw-type terminals for secure connections.
- Automatic and manual reset methods provide operational flexibility.
- Robust IP65 and IP55 ratings ensure reliable operation in harsh environments.
- Functional in an operating temperature range from -40°C to +70°C.
- Compact dimensions with a width of 45mm, length of 87mm, and depth of 73mm.
- Rated for contact voltage up to 690V AC with a power rating of 4 kW.
Product Description
Siemens 3RU2126-1GB0 SIRIUS 3RU2 Thermal Overload Relay offers comprehensive motor protection with an adjustable current range from 4.5 to 6.3 amperes. Designed for three-pole installations, it includes one normally open and one normally closed auxiliary contact for control signaling.
Equipped with durable screw terminals and support for direct mount installation, this relay is built for secure and reliable operation. The dual reset capability allows automatic or manual resets, enhancing usability in diverse industrial settings.
Engineered to withstand demanding environments, it holds IP65 and IP55 ingress protection ratings, and operates efficiently within a wide temperature range from minus 40 to plus 70 degrees Celsius.
This overload relay supports contact voltages up to 690 volts AC and a power rating of 4 kW, making it suitable for motor protection in manufacturing, automation, and electrical control circuits. Its compact size facilitates easy integration in control panels.
Manufactured in Germany, Siemens ensures high reliability and compliance with international standards including IEC, CCC, CE, REACH, WEEE, EAC, UL, UKCA, and RoHS. Adjustable thermal overload current protection from 4.5 to 6.3 amperes.
1 NO and 1 NC auxiliary contacts for signal control. Direct mount with screw terminals for secure installation. Automatic and manual reset options for flexibility. IP65 and IP55 rated for protection against dust and water.
Operational temperature range from -40°C to 70°C. Compact dimensions: width 45mm, length 87mm, depth 73mm. Rated for contact voltage of 690V AC and power of 4 kW. Suitable for industrial motor protection and automation integration.
Complies with multiple international standards ensuring quality and safety. Explore Siemens Thermal Overload Relays on EnvMart for robust motor protection solutions in industrial, manufacturing, HVAC, and electrical automation applications.
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Frequently Asked Questions
The Siemens SIRIUS 3RU2 Thermal Overload Relay has an adjustable current range from 4.5 to 6.3 amperes.
This model has a width of 45mm, a length of 87mm, and a depth of 73mm.
It is rated for a power of 4 kW.
The relay supports a maximum contact voltage of 690V AC.
This model offers both automatic and manual reset methods for operational flexibility.
It has IP65 and IP55 ratings, providing protection against dust and water.
The operating temperature range is from -40°C to +70°C.
This relay features one normally open (NO) and one normally closed (NC) auxiliary contact.
It uses screw-type terminals for secure connections.
The Siemens SIRIUS 3RU2 Thermal Overload Relay is manufactured in Germany.
It complies with several international standards including IEC, CCC, CE, REACH, WEEE, EAC, UL, UKCA, and RoHS.
The relay has a pole and throw configuration of 3P (three-pole).
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