The Siemens (Furnas) 48ATB3S00/3UB81134BB2 is a solid state overload relay engineered for three-phase motor protection. It features a selectable trip class of 5, 10, 20, or 30 via DIP switches, enabling versatile adjustment for various applications. The relay offers a current adjustment range from 0.75 to 3.4 amps with a 4:1 adjustment ratio, ensuring precise control. Its compact, bimetal and solid state designs help prevent nuisance tripping caused by ambient temperature fluctuations, and it includes a visual trip indicator, remote reset capability, and conformally coated circuitry for environmental resilience. UL listed and CSA certified, it ensures safety and compliance for industrial setups, with easy DIN rail mounting and touch-safe terminals for quick installation and maintenance.
Adjustment ratio: 4:1 with fine dial in full load amps
Field changeable trip class reduces inventory
Built-in trip indicator visible for quick diagnostics
Ambient temperature range: -25°C to 65°C
Certifications: UL listed, CSA certified
Conformally coated circuit board for environmental resistance
Contact configuration: 1 NO and 1 NC contacts (B600, R300)
Remote reset option with 24 V DC applied to terminals
DIN rail mounted, touch-safe terminals for installation safety
Automatic reset time: approximately 3 minutes after trip
Manual reset option available
Fiber optically isolated trip mechanism for reliability
Suitable for replace thermal overloads, with no heaters required
Light, normal, and heavy starting conditions supported
Buy the Siemens 3UB81134BB2 – Reliable Overload Protection for Industrial Applications
Purchase the Siemens overload relay online today to ensure reliable motor protection with adjustable trip settings, environmental resilience, and easy installation. Designed for three-phase systems, it features a compact form factor, visual trip indicator, remote reset, and conformally coated circuitry, making it ideal for industrial automation. Whether you need to replace thermal overloads or enhance system safety, this relay provides precise control, supporting cost-effective and efficient operations. Order now for fast delivery and peace of mind in your electrical system management.
Buy Siemens 3UB81134BB2 overload relay now and experience unmatched reliability and precision in motor protection.
Frequently Asked Questions
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