3RU2126-1EB1

The 3RU2126-1EB1 is a Siemens SIRIUS 3RU21 series S0 size thermal overload relay with a current adjustment range of 2.8-4 amps. It is a screw-type terminal independent mounting type with a tripping class of Class 10. It can be used with 3RT2023~3RT2026 series contactors to form a complete motor protection circuit.

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3RU2126-1EB1 Siemens SIRIUS S0 Thermal Overload Relay 2.8-4A

Product Positioning

The 3RU2126-1EB1 is a thermal overload relay of size S0 in the Siemens SIRIUS 3RU21 series. The current adjustment range is 2.8-4 amps. It can be installed independently (including an adapter base, which can be mounted on a DIN rail) and can be directly combined with the 3RT2023~3RT2026 series contactors to provide motor overload and phase loss protection.

Core Product Advantages and Features

Precise current adjustment

The current adjustment range is 2.8-4 amps, and the trip value can be finely adjusted according to the motor's rated current, providing an accurate overload protection action point.

Screw-type terminal design

It uses screw-type terminals and comes with an independent adapter base, allowing it to be installed independently on the guide rail.

Class 10 Breakthrough Level

It conforms to the Class 10 operating characteristics of IEC 60947-4-1 standard and is suitable for general motor starting loads.

Manual/Automatic Reset Switch

After disconnection, you can choose between manual or automatic reset mode to easily adjust the operation method according to on-site maintenance needs.

project	Specification
model	3RU2126-1EB1
Current adjustment range	2.8-4 A
Size Specifications	S0
Terminal type	Screw terminals
Installation method	Independent installation (includes adapter base, can be mounted on a guide rail)
Break away from level	Class 10 (IEC 60947-4-1)
Applicable contactors	3RT2023 ~ 3RT2026
Reset method	Manual/Automatic Reset

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