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Siemens 3RU6116-1GB0 SIRIUS Thermal Overload Relay
Siemens 3RU6116-1GB0 SIRIUS Thermal Overload Relay - Image 2
Siemens 3RU6116-1GB0 SIRIUS Thermal Overload Relay - Image 3

Siemens 3RU6116-1GB0 SIRIUS Thermal Overload Relay

Manufacturer: Siemens
Model: 3RU6116-1GB0
Type: Thermal overload relay (Class 10)
Setting Range: 4.5 … 6.3 A
Size: S00
Mounting: Direct mounting onto contactors (e.g., 3RT2)
Application: Motor protection against overload, phase failure, and unbalanced load

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Product Description

The Siemens 3RU6116-1GB0 is a compact thermal overload relay from the SIRIUS 3RU6 series, providing reliable inverse-time delayed protection for motors with normal starting characteristics. With adjustable current setting from 4.5 to 6.3 A and Class 10 tripping, it is ideal for small to medium motors up to ~2.2–3 kW @ 400 V. Features manual/automatic reset, phase failure sensitivity, and auxiliary contacts (1 NO + 1 NC) for signaling. Designed for direct mounting on SIRIUS contactors, it ensures space-saving assembly in control panels and motor starters.

Standard Features

  • 4.5–6.3 A adjustable range: Covers small motors — precise protection for 1.5–3 kW @ 400 V applications.

  • Class 10 tripping: Standard for motors with normal starting — inverse-time delayed overload protection.

  • Phase failure & unbalance detection: Built-in sensitivity — protects against single-phasing and asymmetric loads.

  • 1 NO + 1 NC auxiliary contacts: For signaling trip status or interlocking — manual or automatic reset selectable.

  • Direct contactor mounting: Fits S00 size contactors (3RT2) — quick assembly without extra wiring.

  • Global approvals: IEC/EN 60947-4-1, UL, CSA, CCC — accepted worldwide for motor control.

Technical Specifications

ParameterValue
TypeThermal overload relay (Class 10)
Order Number3RU6116-1EB0
Setting Range2.8 … 4.0 A
SizeS00
Trip ClassClass 10
Auxiliary Contacts1 NO + 1 NC
MountingDirect on contactor (3RT2)
Standards & CertificationsIEC/EN 60947-4-1, UL, CSA, CCC

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