Siemens Solid State Overload Relay 1 NO/1 NC, 1A, 4 A F.L.C, 4A Contact Rating, 1.5 kW Power, 24V Supply Voltage 3RB3026-1PB0

Siemens 3RB3026-1PB0 is a Solid State Overload Relay designed for the protection of 3 phase AC motors operating in sinusoidal 50/60Hz networks. It features 1 normally open (NO) and 1 normally closed (NC) auxiliary contact configuration, suitable for monitoring overload conditions and trip signaling with a rated current range adjustable from 1 to 4 A.

With a power rating of 1.5 kW and contact rating of 4 A, this relay supports motor full load current up to 4 A and control voltages of 24 V as well as supply voltages up to 240 V ac/dc. Its sturdy construction includes IP55 and IP65 ratings, making it suitable for demanding industrial, manufacturing, and automation applications where reliable motor protection is critical.

This relay incorporates features such as class 10 and class 20 trip settings, internal ground-fault detection, switch position indicators, and a selector switch for manual or automatic reset, enhancing operational safety and flexibility. It is also compatible with Siemens' SIRIUS contactors for integrated motor protection solutions.

Dimensions of this compact device are 69.7 mm in length, 45 mm in width, and 83.5 mm in depth, with a temperature operating range from -25°C to +60°C, allowing operation in diverse industrial environments. Its screw terminal type ensures secure and easy wiring installation.

Certified to international approvals including UKCA, IEC, UL, REACH, CE, WEEE, EAC, CCC, and RoHS standards, the product ensures compliance with global safety and environmental regulations. It is manufactured in the Czech Republic under Siemens' quality assurance processes.

Equipped with automatic and manual reset methods for operational flexibility. Rated for supply voltages of 24 and 240 V ac/dc to support various control systems. Compact dimensions enable direct mounting in tight electrical panels.

Built-in trip class setting and internal ground-fault detection for reliable motor protection. IP55 and IP65 rated for protection against dust and water ingress in industrial environments. Supports protection of 3 phase AC motors with enhanced single-phase sensitivity.

Complies with multiple international standards including UKCA, IEC, UL, CE, RoHS, and others. Designed and manufactured in the Czech Republic ensuring quality and reliability.

This Siemens Overload Relay is ideal for industrial automation, manufacturing, HVAC motor protection, water treatment plants, and other commercial motor control applications. Browse EnvMart for more Siemens electrical and automation control gear.