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NNX3B120 | Siemens Circuit Breaker 1200A 3-Pole 480V VL Series
- Regular price
- $33,999.00
- Sale price
- $33,999.00
- Regular price
-
$288.00
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Product Description P/N: NNX3B120
Description
The Siemens NNX3B120 is a molded case circuit breaker from the VL Series, rated at 1200 amps and 480 volts. It features a thermal-magnetic LI trip unit, a 35 kA interrupt rating, and a 3-pole bolted-on design for heavy-duty low-voltage protection.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breakers |
| Part Number | NNX3B120 |
| Subcategory | Molded Case |
| Series | VL Series |
| Frame | NG Frame |
| Voltage Rating | 480 VAC |
| Frequency Rating | 50/60 Hz |
| Amperage Rating | 1200 A |
| Poles | 3 |
| Phase | 3 |
| Interrupting Rating | 35 kA @ 480V |
| Trip Type | LI / Thermal Magnetic |
| Mounting Type | Bolted-On |
| Temperature Rating | 40 °C |
| Global Standards | UL, CSA, NOM, IEC, CE, CCC |
| Communication | PROFIBUS DP / MODBUS RTU (with trip unit) |
| Dimensions (H x W x D) | 16 in x 9 in x 6.2 in |
| Application | Low voltage distribution systems |
| Weight | 35 lbs (approx.) |
Information About NNX3B120
The NNX3B120 is part of the Siemens VL Series, a globally recognized family of molded case circuit breakers designed for flexibility and reliability in low-voltage systems. Built on the NG frame, it supports three-phase, 1200A operation with a 35kA interrupt capacity at 480V. Its LI thermal-magnetic trip unit provides dependable long-time and instantaneous protection, ensuring safe operation under overload and fault conditions. Compact dimensions and bolted-on mounting simplify installation, while adherence to major global standards allows use in diverse industrial and commercial applications.
Key Features:
-
High Current Rating: 1200A continuous duty supports large-scale power distribution systems.
-
Voltage Capacity: Operates at 480 VAC with three-phase compatibility for industrial use.
-
Interrupting Rating: 35kA at 480V provides strong fault-clearing performance.
-
Trip Type: LI thermal-magnetic unit offers long-time overload and instantaneous short-circuit protection.
-
Modular VL Series Design: Compact footprint saves space and reduces overall system requirements.
-
Global Standards Compliance: UL, CSA, NOM, IEC, CE, and CCC certifications for international applications.
-
Communication Ready: PROFIBUS DP and MODBUS RTU options available with electronic trip units.
-
Mounting: Bolted-on connection ensures secure installation in demanding environments.
-
Durability: Tested to twice UL endurance requirements for high reliability.
-
Dimensions: Measures 16 x 9 x 6.2 inches for efficient panel integration.
The NNX3B120 delivers the reliability and precision required for global low-voltage power distribution, combining high capacity, robust construction, and flexible system compatibility.
Description
The Siemens NNX3B120 is a molded case circuit breaker from the VL Series, rated at 1200 amps and 480 volts. It features a thermal-magnetic LI trip unit, a 35 kA interrupt rating, and a 3-pole bolted-on design for heavy-duty low-voltage protection.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breakers |
| Part Number | NNX3B120 |
| Subcategory | Molded Case |
| Series | VL Series |
| Frame | NG Frame |
| Voltage Rating | 480 VAC |
| Frequency Rating | 50/60 Hz |
| Amperage Rating | 1200 A |
| Poles | 3 |
| Phase | 3 |
| Interrupting Rating | 35 kA @ 480V |
| Trip Type | LI / Thermal Magnetic |
| Mounting Type | Bolted-On |
| Temperature Rating | 40 °C |
| Global Standards | UL, CSA, NOM, IEC, CE, CCC |
| Communication | PROFIBUS DP / MODBUS RTU (with trip unit) |
| Dimensions (H x W x D) | 16 in x 9 in x 6.2 in |
| Application | Low voltage distribution systems |
| Weight | 35 lbs (approx.) |
Information About NNX3B120
The NNX3B120 is part of the Siemens VL Series, a globally recognized family of molded case circuit breakers designed for flexibility and reliability in low-voltage systems. Built on the NG frame, it supports three-phase, 1200A operation with a 35kA interrupt capacity at 480V. Its LI thermal-magnetic trip unit provides dependable long-time and instantaneous protection, ensuring safe operation under overload and fault conditions. Compact dimensions and bolted-on mounting simplify installation, while adherence to major global standards allows use in diverse industrial and commercial applications.
Key Features:
-
High Current Rating: 1200A continuous duty supports large-scale power distribution systems.
-
Voltage Capacity: Operates at 480 VAC with three-phase compatibility for industrial use.
-
Interrupting Rating: 35kA at 480V provides strong fault-clearing performance.
-
Trip Type: LI thermal-magnetic unit offers long-time overload and instantaneous short-circuit protection.
-
Modular VL Series Design: Compact footprint saves space and reduces overall system requirements.
-
Global Standards Compliance: UL, CSA, NOM, IEC, CE, and CCC certifications for international applications.
-
Communication Ready: PROFIBUS DP and MODBUS RTU options available with electronic trip units.
-
Mounting: Bolted-on connection ensures secure installation in demanding environments.
-
Durability: Tested to twice UL endurance requirements for high reliability.
-
Dimensions: Measures 16 x 9 x 6.2 inches for efficient panel integration.
The NNX3B120 delivers the reliability and precision required for global low-voltage power distribution, combining high capacity, robust construction, and flexible system compatibility.