Siemens 3RU21261CB0 1.8-2.5A Class 10 Therma Overload Relay

Siemens 3RU21261CB0 1.8-2.5A Class 10 Overload Relay

Overview:
The Siemens 3RU2126‑1CB0 is a compact thermal overload relay designed to protect small three-phase motors from overheating caused by overload, phase loss, or phase imbalance. It fits perfectly with Siemens SIRIUS size S0 contactors.

Key Specifications:

Current range: 1.8 to 2.5 A (adjustable)

Trip class: 10 (responds within 10 seconds under overload)

Reset: Manual or automatic reset options

Mounting: Directly mounts on Siemens size S0 contactors (3RT202 series)

Protection rating: IP20 (finger-safe housing)

Operating temperature: –40°C to +70°C

Why Choose This Relay?

Provides reliable motor protection for currents between 1.8 and 2.5 A

Easy to install and integrate with Siemens contactors

Includes test, reset, and stop buttons for easy maintenance

Compact and suitable for small motors in automation, pumps, conveyors, and HVAC systems