SIEMENS 3RU5 thermal overload relay, 3RU5146-4FB0 28-40A 3RU51464FB0
LEHIY item code: LH-3070
-Automatic Reset min Depends on Tripping Current Magnitude and Characteristics -Manual Reset min Depends on Tripping Current Magnitude and Characteristics Characteristics Status Display √ Test Function √ Temperature Compensation ℃ 70 80 Permissible Rated Current -Control Cabinet Internal Temperature 60℃ % 94 100 -Control Cabinet Internal Temperature 70℃ % 82.
87 Adapter Terminals Coil Adapter Terminal Not Required Auxiliary Contact Adapter Terminal Not Required Protection Rating: Complies with IEC 60529 standard IP00 (open), IP20 (with terminal cover) Finger Touch Protection: Complies with IEC 61140 standard Finger Touch Safety (with terminal cover) Shock Resistance: Complies with IEC 60068-2-27 Standard.
g/ms 8/10 Air Humidity ％ 90 100 Altitude m Up to 2000m.
For altitudes above 2000m, please contact Siemens technical support hotline.: -Automatic Reset.
Category: Thermal Overload Relay
Rated Operating Voltage U e: V
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This page helps you check SIEMENS 3RU5 thermal overload relay, 3RU5146-4FB0 28-40A 3RU51464FB0 before you ask for a quote.
Confirm the brand, model number, part number, and quantity. Share a clear nameplate photo when the old item has close variants.
LEHIY can check stock, lead time, packing, shipping documents, and safe replacement options for maintenance orders.
Technical Specifications
| 3RU5-Overload Relay | ||||
| Type | 3RU51 56 | 3RU51 66 | 3RU51 76 | |
| Specifications | S6 | S10 | S12 | |
| Width | 106(1))</sup>mm | 145mm | 145mm | |
| General Technical Data | ||||
| Trip Type | Overload and Phase Loss | |||
| Trip Class | CLASS | 10 | ||
| Reset and Recovery | ||||
| Trip Reset Type | Manual and Automatic Reset | |||
| -Automatic Reset | min | Depends on Tripping Current Magnitude and Characteristics | ||
| -Manual Reset | min | Depends on Tripping Current Magnitude and Characteristics | ||
| Characteristics | ||||
| Status Display | √ | |||
| Test Function | √ | |||
| Temperature Compensation | ℃ | 70 | 80 | |
| Permissible Rated Current | ||||
| -Control Cabinet Internal Temperature 60℃ | % | 94 | 100 | |
| -Control Cabinet Internal Temperature 70℃ | % | 82 | 87 | |
| Adapter Terminals | ||||
| Coil Adapter Terminal | Not Required | |||
| Auxiliary Contact Adapter Terminal | Not Required | |||
| Protection Rating: Complies with IEC 60529 standard | IP00 (open), IP20 (with terminal cover) | |||
| Finger Touch Protection: Complies with IEC 61140 standard | Finger Touch Safety (with terminal cover) | |||
| Shock Resistance: Complies with IEC 60068-2-27 Standard | g/ms | 8/10 | ||
| Air Humidity | ％ | 90 | 100 | |
| Altitude | m | Up to 2000m. For altitudes above 2000m, please contact Siemens technical support hotline. | ||
| Installation Method | Independent Installation | |||
| Main Circuit | ||||
| Rated Insulation Voltage U<sub>i</sub> (Pollution Degree 3) | V | 1000 | ||
| Rated Impulse Withstand Voltage U<sub>imp</sub> | kV | 8 | ||
| Rated Operating Voltage U<sub>e</sub> | V | 1000 | ||
| Current Type | ||||
| DC | Available (2)</sup> | Unavailable | ||
| AC | Available, frequency up to 400Hz | |||
| Current Range | A | 55…80 to 170…205 | 140…200 to 220…320 | 280…400 to 350…500 Ω|
| Maximum power consumption per thermal overload relay | W | 24 | 21 | 36 |
| Insulation between main and auxiliary circuits conforms to IEC60947-1 standard | V | 1000 | ||
| 1) Except for 3RU5156-3NB1 2) Requires three-pole series connection | ||||
| Cross-sectional area of main circuit conductor | ||||
| Screw Terminal Block | ||||
| Terminal Screw | M8 (Hexagonal Outer Head)<sup>2)</sup> | M10 (Hexagonal Outer Head) | M10 (Hexagonal Outer Head) | |
| Tightening Torque | Nm | 10…14 | 14…24 | 14…24 |
| Conductor Cross-sectional Area (Maximum...Minimum) | ||||
| 1 or 2 wires | ||||
| Fine multi-strand wire with prefabricated terminals | mm<sup>2</sup> | 2x（16…95） | 2x（35…150） Max.1x240 | 2x（95…150） Max.1x240 |
| AWG wire, solid or multi-strand wire | AWG | 1/0…250kcmil | 2/0…500kcmil | 2/0…500kcmil |
| Ribbon Cable/Busbar | mm | 2x20x3 | 2x25x6 | 2x25x6 |
| Auxiliary Circuit | ||||
| Number of Normally Open Contacts | 1 | |||
| Number of Normally Closed Contacts | 1 | |||
| i</sub> (pollution degree 3) V 690 Rated impulse withstand voltage U<sub>imp</sub> kV 8 9 Breakthrough capacity of auxiliary contacts | Auxiliary contact assignment | |||
| Breakthrough capacity of auxiliary contacts | ||||
| 24V | A | 4 | ||
| 120V | A | 4 | ||
| 125V | A | 4 | ||
| 230V | A | |||
| 400V | A | 2 | ||
| 600V | A | 0.75 | ||
| 690V | A | 0.75 | ||
| NO Normally open contact, AC-14/AC-15, rated operating current Ie under rated operating voltage U<sub>e</sub> | ||||
| 24V | A | 3 | ||
| 120V | A | 3 | ||
| 125V | A | 3 | ||
| 230V | A | 2 | ||
| 400V | A | |||
| 600V | A | 0.75 | ||
| 690V | A | 0.75 | ||
| NC normally closed contact and NO normally open contact, DC-13, rated operating current Ie under rated operating voltage U<sub>e</sub> | ||||
| 24V | A | 1 | ||
| A | 6 | |||
| Contact Reliability | Suitable for solid-state circuits, minimum current handling 5mA (17V) | |||
| Safety isolation between main and auxiliary circuits, compliant with IEC60947-1 standard | V | ≥400 | ||
| Auxiliary circuit conductor cross-sectional area | ||||
| Screw terminal block | ||||
| Terminal screw | M3, No. 2 crosshead screwdriver | |||
| Tightening torque | Nm | 0.8…1.2 | ||
| Conductor cross-sectional area | ||||
| 1 or 2 wires | ||||
| Solid wire | mm<sup>2</sup> | 2x（0.5…1.5）1), 2x（0.75…2.5）1） | ||
| mm<sup>2</sup> | 2x(0.5…1.5)1), 2x(0.75…2.5)1) | |||
| AWG wire, solid or multi-strand wire | AWG | 2x(20…16)1), 2x(18…14)1) | ||
| 1) If two wires with different cross-sectional areas need to be connected to one terminal block, ensure that the cross-sectional areas of both wires are within the required range. | ||||
| 2) For the 3RU5156-3NB1 product, M8 and M10 wiring screws are required |
| 3RU5-Overload Relay | |||
| Type | 3RU51 36 | 3RU51 46 | |
| Specifications | S2 | S3 | |
| Width | 55mm | 70mm | |
| General Technical Data | |||
| Trip Type | Overload and Phase Loss | ||
| Trip Class: Compliant with IEC 60947-4-1 Standard | CLASS | 10 | |
| Reset and Recovery | |||
| Trip Reset Type | Manual and Automatic Reset | ||
| Reset Time | |||
| Reset Time | |||
| -Automatic Reset | min | Depends on Tripping Current Magnitude and Characteristics | |
| -Manual Reset | min | Depends on Tripping Current Magnitude and Characteristics | |
| Characteristics | |||
| Status Display | √ | ||
| Test Function | √ | ||
| IP20 | IP20 (1) | ||
| Finger Touch Protection: Complies with IEC 61140 standard | Finger Touch Safety | ||
| Shock Resistance: Complies with IEC 60068-2-27 standard | g/ms | 8/10 | |
| Air Humidity | % | 100 | |
| Altitude | m | Up to 2000. For altitudes above 2000 m, please contact Siemens technical support. | |
| Installation Method | Plug-in with contactor or use with independent mounting bracket for independent installation. | 3) </sup>||
| 1) Terminal grid protection rating IP00 | |||
| 2) Auxiliary contacts 95/96 and 97/98 shock resistance: 8g/11ms | |||
| 3) Can be used for screw fixing or 35 mm standard DIN rail mounting. | |||
| Main Circuit | |||
| Rated Insulation Voltage U<sub>i</sub> (Pollution Degree 3) | V | 690 | 1000 |
| Rated Impulse Withstand Voltage U<sub>imp</sub> | kV | 6 | 8 |
| Rated Operating Voltage U<sub>e</sub> | V | 690 | 1000 |
| Current Type | |||
| DC | Available | ||
| AC | Available, frequency up to 400 Hz | ||
| Current Range | A | 5.5...8 to 40...50 | 18...25 to 80...100 |
| Maximum Power Consumption per Thermal Overload Relay | W | 6...9 | 10...16.5 |
| Safety insulation between main circuit and auxiliary circuit (compliant with IEC 60947-1 standard) | V | ≥ 440 | |
| Auxiliary circuit | |||
| Number of normally open contacts | 1 | ||
| Number of normally closed contacts | 1 | ||
| Auxiliary contact allocation | 1 NO Provides "trip" signal | ||
| 1 NC for disconnecting the contactor | |||
| Break-off capacity of auxiliary contacts | |||
| ·NC normally closed contact, AC-14/AC-15, rated current Ie under rated operating voltage U<sub>e</sub>: | |||
| -24V | A | 4 | |
| -120V | A | 4 | |
| -125V | A | 4 | |
| -230V | A | 3 | |
| -400V | A | 2 | |
| -600V | A | 0.75 | |
| -690V | A | ||
| ·NO normally open contact, AC-14/AC-15, rated current Ie under rated operating voltage U<sub>e</sub>: | |||
| -24V | A | 3 | |
| -120V | A | 3 | |
| -125V | A | 3 | |
| -230V | A | 2 | |
| -400V | A | 1 | |
| -600V | A | 0.75 | |
| -690V | A | 0.75 | |
| -24V | A | 1 | |
| -60V | A | For details, please consult Siemens technical support hotline | |
| -110V | A | 0.22 | |
| -125V | A | 0.22 | |
| -220V | A | 0.11 | |
| ·Conventional Heating Current Ith | A | 6 | |
| ·Contact Reliability | Suitable for solid-state circuits, minimum on-state current 5 mA (at 17 V). | ||
| Safety isolation between main circuit and auxiliary circuit (compliant with IEC 60947-1 standard) | A | ≥ 440 | |
| Cross-sectional area of auxiliary circuit conductor | |||
| Screw terminal block | |||
| Terminal screw | M3, No. 2 cross-section screwdriver | ||
| Tightening torque | Nm | 0.8 ... 1.2 | |
| Conductor cross-sectional area (maximum...minimum) | |||
| Can connect 1 or 2 wires | |||
| ·Solid wire | mm<sup>2</sup> | 2×(0.5 ... 1.5) <sup>1)</sup> ，2×(0.75 ... 2.5) <sup>1)</sup> | |
| ·Fine multi-strand wire with prefabricated terminal blocks (DIN 46228 T<sup> 1)</sup> | mm<sup>2</sup> | 2×(0.5 ... 1.5) <sup>1)</sup> ，2×(0.75 ... 2.5) <sup>1)</sup> | |
| ·AWG conductor, solid or multi-strand conductor | 2×(20 ... 16) <sup>1)</sup> ，2×(18 ... 14) <sup>1)</sup> | ||
| 1) If two conductors with different cross-sectional areas need to be connected to one terminal block, ensure that the cross-sectional areas of both conductors are within the required range. |
Product Applications
|
Technical Specifications
| Specification | Value |
|---|---|
| Brand | SIEMENS |
| Category | Thermal Overload Relay |
| Series | 3RU |
| Setting Current Range (A) | 28-40 |
| Installation Method | Plug-in Type |
| Applicable Contactors | 3RT50 |
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| Brand Name: | Siemens | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
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SIEMENS 3RU5 thermal overload relay, 3RU5146-4FB0 28-40A 3RU51464FB0
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