The Siemens 3WT9853-1JM00 Under Voltage Release Instantaneous is a genuine SENTRON 3WT8 Air Circuit Breaker (ACB) accessory designed to enhance electrical safety and operational reliability in low-voltage power distribution systems. Engineered with Siemens' renowned quality standards, the 3WT9853-1JM00 provides dependable under-voltage protection by automatically tripping the circuit breaker when the control voltage drops below the specified operating threshold.
Available at SB Smart (sbsmart.in), the Siemens 3WT9853-1JM00 is widely used in industrial plants, commercial facilities, power distribution networks, infrastructure projects, and critical electrical installations where uninterrupted protection and safe system shutdown are essential. This accessory is specifically designed for compatibility with Siemens SENTRON 3WT8 Air Circuit Breakers, ensuring seamless integration and reliable performance.
The 3WT9853-1JM00 Under Voltage Release operates with a rated control supply voltage of 380–415V AC, 50/60Hz, providing immediate breaker tripping when voltage levels fall below acceptable limits. This functionality helps prevent unsafe operating conditions, protects connected equipment, and supports compliance with electrical safety standards.
Modern industrial facilities require dependable protection systems capable of responding instantly to abnormal voltage conditions. The Siemens 3WT9853-1JM00 is engineered to provide fast and reliable operation, helping prevent equipment damage, motor malfunction, and unsafe restart conditions caused by voltage fluctuations.
As part of the Siemens SENTRON protection ecosystem, this under-voltage release accessory is manufactured using high-quality components designed for long service life and consistent performance. Its robust construction ensures reliable operation even in demanding industrial environments where electrical systems are subjected to continuous operation and varying load conditions.
The 3WT9853-1JM00 helps improve system safety by ensuring that the connected air circuit breaker cannot remain closed when control voltage is lost, thereby protecting personnel and equipment from potential hazards.
The Siemens 3WT9853-1JM00 Under Voltage Release Instantaneous is specifically developed for use with SENTRON 3WT8 Air Circuit Breakers. It functions as an essential safety accessory that monitors control voltage and triggers immediate breaker opening when voltage falls below the permissible level.
This capability is especially important in applications involving:
By incorporating the 3WT9853-1JM00, engineers can improve operational safety, equipment protection, and overall system reliability.
The Siemens 3WT9853-1JM00 Under Voltage Release is suitable for:
At SB Smart, we provide genuine Siemens electrical and industrial automation products sourced through trusted channels. The Siemens 3WT9853-1JM00 Under Voltage Release Instantaneous offers dependable protection, seamless compatibility with SENTRON 3WT8 breakers, and the long-term reliability expected from Siemens products.
Whether you are upgrading an existing switchboard, maintaining a power distribution system, or designing a new electrical installation, the 3WT9853-1JM00 provides the safety and performance required for mission-critical applications.
| Specification | Details |
|---|---|
| Product Name | Under Voltage Release Instantaneous |
| Manufacturer | Siemens |
| Brand Series | SENTRON |
| Model Number | 3WT9853-1JM00 |
| Product Type | Under Voltage Release (UVR) |
| Accessory Designation | F3 Under Voltage Release |
| Compatible Breaker Series | Siemens 3WT8 Air Circuit Breakers |
| Rated Control Supply Voltage | 380–415V AC |
| Frequency | 50/60Hz |
| Operating Function | Instantaneous Tripping |
| Application | Under Voltage Protection |
| Mounting Type | Breaker Accessory Mounting |
| Net Weight | Approx. 0.8 kg |
| Industrial Application | Yes |
| Safety Function | Automatic Breaker Trip on Voltage Loss |
| Product Category | ACB Accessory |
| Brand | Siemens |
| Condition | New & Genuine Product |
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