ABB STOTZ-KONTAKT alijänniterele E236-US1.1 (2CDE165001R2001)

In industrial control panels and building automation, the ABB STOTZ-KONTAKT Undervoltage Relay E236-US1.1 provides reliable monitoring of supply voltage. It is side-mounted to ABB S200 series miniature circuit breakers (MCBs) and trips the breaker when voltage drops below the set threshold, protecting downstream equipment from undervoltage conditions.

Key specifications

• Rated operational voltage: 230 V AC
• Rated frequency: 50/60 Hz
• Tripping voltage threshold: 0.7 x Ue (adjustable holding range 0.7 to 0.35 x Ue)
• Module width: 1 module (17.5 mm)
• Mounting: side mounting to MCB
• Terminal type: screw terminals
• Connection capacity: rigid 0.75–4 mm², flexible 0.75–2.5 mm²
• Degree of protection (terminals): IP20
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Power consumption: 3.5 VA
• Standards: IEC/EN 60947-2, IEC/EN 60898-1

Why choose it

The relay offers instantaneous tripping and a compact one-module design, integrating seamlessly with S200 MCBs. Its adjustable holding range allows adaptation to specific application needs.

Ideal use cases

• Protection of motors and sensitive equipment from undervoltage
• Safety circuits requiring automatic disconnection on voltage drop
• Building automation and industrial control systems

Good to know

The relay is designed for side mounting to ABB S200 series MCBs, ensuring a secure and space-saving installation.