The Siemens 3WT9853-1JK00 Under Voltage Release Instantaneous is a genuine SENTRON 3WT8 Air Circuit Breaker (ACB) accessory engineered to provide dependable under-voltage protection for industrial, commercial, and infrastructure power distribution systems. Designed to work seamlessly with Siemens 3WT8 Air Circuit Breakers, the 3WT9853-1JK00 ensures immediate breaker tripping whenever the control voltage falls below the permissible operating level, helping protect both personnel and equipment from unsafe operating conditions.
Available at SB Smart (sbsmart.in), the Siemens 3WT9853-1JK00 is widely used in low-voltage power distribution networks, industrial switchboards, utility installations, process industries, manufacturing facilities, and commercial buildings where electrical safety and system reliability are critical.
This under-voltage release is configured as an F3 instantaneous under-voltage release with a rated control supply voltage of 220–240V AC (50/60Hz) and 220–250V DC, providing fast and reliable protection against voltage failures and abnormal operating conditions.
The Siemens 3WT9853-1JK00 Under Voltage Release Instantaneous is manufactured according to Siemens' stringent quality standards and is designed for continuous operation in demanding industrial environments.
Modern electrical systems require protective accessories that respond instantly during power disturbances. The 3WT9853-1JK00 ensures that the connected air circuit breaker automatically opens when the control voltage drops below the specified threshold, preventing unsafe restart conditions and protecting connected equipment from potential damage.
Its robust construction and precision-engineered operating mechanism provide consistent performance, extended service life, and reduced maintenance requirements. This makes the accessory particularly valuable in mission-critical installations where system uptime and operational safety are top priorities.
The Siemens 3WT9853-1JK00 is specifically designed as an accessory for the SENTRON 3WT8 Air Circuit Breaker Series. Its seamless compatibility ensures easy installation and dependable operation within Siemens low-voltage switchgear systems.
By integrating the 3WT9853-1JK00 Under Voltage Release into a power distribution system, users gain:
These advantages make it an essential accessory for critical electrical protection systems.
The Siemens 3WT9853-1JK00 Under Voltage Release Instantaneous is suitable for:
At SB Smart, we supply genuine Siemens switchgear and industrial automation products sourced through trusted channels. The Siemens 3WT9853-1JK00 Under Voltage Release Instantaneous delivers dependable under-voltage protection, seamless compatibility with SENTRON 3WT8 breakers, and long-term operational reliability.
Whether you are upgrading an existing switchboard, maintaining an industrial power distribution system, or designing a new electrical installation, the 3WT9853-1JK00 provides the protection and performance expected from Siemens SENTRON technology.
| Specification | Details |
|---|---|
| Product Name | Under Voltage Release Instantaneous |
| Manufacturer | Siemens |
| Brand Series | SENTRON |
| Model Number | 3WT9853-1JK00 |
| Product Type | Under Voltage Release (UVR) |
| Accessory Designation | F3 Under Voltage Release |
| Compatible Breaker Series | Siemens 3WT8 Air Circuit Breakers |
| Rated AC Control Voltage | 220–240V AC |
| Rated DC Control Voltage | 220–250V DC |
| Frequency | 50/60Hz |
| Operating Function | Instantaneous Tripping |
| Application | Under Voltage Protection |
| Mounting Type | Breaker Accessory Mounting |
| Product Category | ACB Accessory |
| Net Weight | Approx. 0.8 kg |
| Industrial Application | Yes |
| Safety Function | Automatic Breaker Trip on Voltage Loss |
| Brand | Siemens |
| Condition | New & Genuine Product |
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