SIEMENS 3WL1216-4CB34-4AN2

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product origin:Germany
shipping port: XIAMEN
Lead Time: 3-5 days

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Category Module Brand: Siemens

Siemens 3WL1216-4CB34-4AN2: 1600A Air Circuit Breaker (ACB) for Low-Voltage Power Distribution

Product Introduction

The Siemens 3WL1216-4CB34-4AN2 is a high-capacity air circuit breaker (ACB) from the 3WL series, engineered to protect and control low-voltage (LV) power distribution systems in industrial facilities, commercial buildings, and data centers. With a rated current of 1600A, it serves as a critical safety component—interrupting fault currents (up to 50 kA at 415V AC) during short circuits or overloads to prevent equipment damage and ensure electrical system reliability.

Designed for flexibility, this ACB supports 3-pole configuration and integrates advanced electronic trip units (ETUs) that enable precise adjustment of protection settings (e.g., long-time, short-time, instantaneous tripping). It also features a modular design, allowing optional add-ons like communication modules (for PROFINET/Modbus) or auxiliary contacts to meet specific monitoring and control needs.

Built to industrial-grade standards, it operates reliably across a wide temperature range (-5°C to +40°C) and offers IP30 protection for panel-mounted use. Its robust mechanical structure ensures long-term durability, while manual or motorized operating mechanisms simplify installation and maintenance. Ideal for primary or secondary distribution in LV networks, it seamlessly integrates with Siemens TIA Portal for centralized monitoring—enhancing visibility of power system status and enabling predictive maintenance.

Product Data Attributes

Attribute Category	Specifications
Model Information	Model: Siemens 3WL1216-4CB34-4AN2 Series: 3WL Product Type: Air Circuit Breaker (ACB) Pole Configuration: 3-pole
Electrical Ratings	Rated Current (Iₙ): 1600 A Rated Voltage (Uₙ): 415 V AC (50/60 Hz) Breaking Capacity (Iₙ): 50 kA (at 415 V AC) Trip Unit: Electronic (ETU) with adjustable protection curves
Core Protection Functions	Protection Modes: Long-time overload, Short-time delay, Instantaneous short-circuit, Ground fault protection (optional) Tripping Curves: IEC standard curves (B, C, D; configurable via ETU)
Mechanical Specifications	Dimensions (H×W×D): 440 mm × 250 mm × 360 mm (approx.) Net Weight: ~35 kg Mounting: Panel-mounted (drawout or fixed) Operating Mechanism: Manual or motorized (optional) Protection Rating: IP30 (EN 60529)
Communication & Monitoring	Optional Interfaces: PROFINET, Modbus RTU/TCP Monitoring Data: Current, voltage, power, fault logs Control Signals: Remote ON/OFF, trip reset (via auxiliary contacts)
Environmental Ratings	Operating Temperature: -5°C to +40°C Storage Temperature: -25°C to +70°C Humidity: 5–95% RH (non-condensing, no condensation) Altitude: Up to 2000 m (derate above 1000 m)
Certifications	CE, UL, CSA, IECEx, ATEX Standards: IEC 60947-2, EN 60947-2 (LV switchgear) Safety Class: IEC 61140 (protection against electric shock)
Typical Applications	Low-voltage power distribution in factories, Commercial building main distribution, Data center power protection, Industrial facility secondary distribution Industries: Manufacturing, Construction, IT/Data Centers, Healthcare, Energy