Siemens 3VJ Series Molded Case Circuit Breakers
Product Brochure - March 2021
Introduction
The Siemens 3VJ Molded Case Circuit Breakers (MCCBs) with Thermal Magnetic Trip units offer an efficient and cost-effective solution for power distribution in industrial applications, buildings, infrastructure, and utilities. They ensure reliable protection for personnel and plants with user-friendly features.
The 3VJ MCCBs are available in 1, 2, 3, and 4-pole versions, with rated operational currents from 20 A to 630 A* and rated voltages up to 415 V. They offer breaking capacities of 10, 18, 25, 36, and 55 kA, and are delivered in 5 frame sizes. These MCCBs conform to international standards EN60947-2/2017 and IS/IEC60947-2/2016, with pollution degree III.
Key Product Features
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Compact Design
Saves space in enclosures and switchboards, reducing the overall module size.
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Reliable & Safe
Designed with utmost quality for optimal performance. The 4-pole MCCB (100% rated) is suitable for demanding applications.
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Flexible
Common footprints across breaking capacities from 10 kA to 55 kA, with no Neutral pole bias.
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Efficient Choice
User-friendly features and cost-effective solutions for power distribution.
Thermal Magnetic Trip Unit
3VJ offers both FTFM (Fixed Thermal Fixed Magnetic) and ATFM (Adjustable Thermal Fixed Magnetic) trip units for all component ranges. This provides flexibility, as all 4 poles are protected, allowing for neutral configurations (N-RYB or RYB-N) suited to your application.
| Trip Units | Thermal Settings | Magnetic Settings |
|---|---|---|
| Fixed Thermal Magnetic (FTFM) | In | 10 / In |
| Adjustable Thermal Fixed Magnetic (ATFM) | 0.8 - 1 / In | 10 / In |
Accessories
In addition to basic protection, 3VJ MCCBs offer accessory components for efficient power distribution.
External Accessories
Includes Manual operators with position indicators, Mechanical interlocks, Spreaders, Toggle handle extensions, and Phase barriers. Locking devices are also available for all 3VJ frame sizes.
Internal Accessories
Includes Auxiliary and Alarm switches, Shunt trip, and Undervoltage releases. These are available in right and left cavities, with different operating voltage levels.
Technical Specifications
3VJ10
| Type | 3VJ10 |
|---|---|
| Number of poles | 1, 2, 3, 4 |
| Frame Size | 125 X |
| Rated operational current / In A (at 45°C) | 20 ... 125 |
| Rated operational voltage Ue 50/60 Hz AC | 415 V |
| Insulation voltage Ui | 800 V |
| Impulse voltage Uimp | 6 kV |
| Suitable for Isolation | Yes |
| Utilization category, according to IEC60947-2 | A |
| Short-circuit breaking capacities Ics or Icu RMS value, according to IEC60947-2 | 10, 18, 25 kA |
| Icu @ AC 415 V-50/60 Hz | 100% of Icu |
| Ics @ AC 415 V-50/60 Hz | 75% of Icu |
| Trip Units | FTFM, ATFM |
| Neutral Protection in 4P MCCB | 100% |
| Endurance (Mechanical) | 15000 |
| Endurance (Electrical 415V AC) | 5000 |
| Connection Technology | Screw Terminal |
| Overall Dimensions (Width x Depth x Height) | 1p: 35 x 62 x 118 mm 2p/3p/4p: 80 (2p/3p) / 103.5(4p) x 62 x 126 mm |
3VJ11
| Type | 3VJ11 |
|---|---|
| Number of poles | 2, 3, 4 |
| Frame Size | 125 |
| Rated operational current / In A (at 45°C) | 25 ... 125 |
| Rated operational voltage Ue 50/60 Hz AC | 415 V |
| Insulation voltage Ui | 1000 V |
| Impulse voltage Uimp | 8 kV |
| Suitable for Isolation | Yes |
| Utilization category, according to IEC60947-2 | A |
| Short-circuit breaking capacities Ics or Icu RMS value, according to IEC60947-2 | 25, 36, 55 kA |
| Icu @ AC 415 V-50/60 Hz | 75% of Icu |
| Ics @ AC 415 V-50/60 Hz | 75% of Icu |
| Trip Units | FTFM, ATFM |
| Neutral Protection in 4P MCCB | 100% |
| Endurance (Mechanical) | 15000 |
| Endurance (Electrical 415V AC) | 5000 |
| Connection Technology | Screw Terminal |
| Overall Dimensions (Width x Depth x Height) | 2p/3p/4p: 92 (2p/3p) / 122(4p) x 81 x 150 mm |
3VJ12
| Type | 3VJ12 |
|---|---|
| Number of poles | 2, 3, 4 |
| Frame Size | 250 |
| Rated operational current / In A (at 45°C) | 160 ... 250 |
| Rated operational voltage Ue 50/60 Hz AC | 415 V |
| Insulation voltage Ui | 1000 V |
| Impulse voltage Uimp | 8 kV |
| Suitable for Isolation | Yes |
| Utilization category, according to IEC60947-2 | A |
| Short-circuit breaking capacities Ics or Icu RMS value, according to IEC60947-2 | 18, 25, 36, 55 kA |
| Icu @ AC 415 V-50/60 Hz | 75% of Icu |
| Ics @ AC 415 V-50/60 Hz | 75% of Icu |
| Trip Units | FTFM, ATFM |
| Neutral Protection in 4P MCCB | 100% |
| Endurance (Mechanical) | 15000 |
| Endurance (Electrical 415V AC) | 5000 |
| Connection Technology | Screw Terminal |
| Overall Dimensions (Width x Depth x Height) | 2p/3p/4p: 107.5 (2p/3p) / 142.5 (4p) x 81 x 166 mm |
3VJ13
| Type | 3VJ13 |
|---|---|
| Number of poles | 3, 4 |
| Frame Size | 400 |
| Rated operational current / In A (at 45°C) | 320 ... 400 |
| Rated operational voltage Ue 50/60 Hz AC | 415 V |
| Insulation voltage Ui | 1000 V |
| Impulse voltage Uimp | 8 kV |
| Suitable for Isolation | Yes |
| Utilization category, according to IEC60947-2 | A |
| Short-circuit breaking capacities Ics or Icu RMS value, according to IEC60947-2 | 25, 36, 55 kA |
| Icu @ AC 415 V-50/60 Hz | 75% of Icu |
| Ics @ AC 415 V-50/60 Hz | 75% of Icu |
| Trip Units | FTFM, ATFM |
| Neutral Protection in 4P MCCB | 100% |
| Endurance (Mechanical) | 10000 |
| Endurance (Electrical 415V AC) | 4000 |
| Connection Technology | Screw Terminal |
| Overall Dimensions (Width x Depth x Height) | 3p/4p: 150 (3p) / 198 (4p) x 104 x 260 mm |
Product Dimensions
Detailed dimensional drawings are provided for 3VJ10, 3VJ11, 3VJ12, and 3VJ13 models, illustrating 1, 2, 3, and 4-pole configurations and overall dimensions in millimeters.
Product Selection Guide
The order number for 3VJ Molded Case Circuit Breakers is systematically structured to provide information about key features. The guide includes selections based on breaker type, frame size, rated current, breaking capacity, trip unit, pole configuration, and connection type.
Example Selection Structure:
Breaker type: 3VJ
Frame size: 3VJ10 (20-125 A)
Rated current: In = 20 A (Code: 02)
Breaking Capacity @ 415 V: 10 kA (Code: 0)
Trip unit: FTFM (Code: DA)
Pole: 1-pole (Code: 1)
Screw connection: Standard (Code: 2)
Internal accessory: W/O (Code: 0AA0)
Resulting Order Number Example: 3VJ1002-0DA12-0AA0
Product Accessories
External Accessories
- Extended Door Mounted Rotary Operator (including 8UC handle)
- Straight Terminals
- Spreader Terminals
- Phase Barriers
- Terminal Covers
- Toggle handle extension
Internal Accessories
- AUX Auxiliary Switch (L/R)
- AL Alarm Switch (L/R)
- AUX + AL Auxiliary Switch (L/R)
- STL Shunt Trip (Right)
- UVR Under Voltage Release (Left)
Note: Internal accessories are available only for 2P, 3P & 4P MCCBs.
