ABB S200 Undervoltage Release 24V AC/DC, 1 Module, Side-Mount, Screw Terminals

The ABB 1SAM201904R1001 undervoltage release stands out by integrating directly with the S200 series miniature circuit breakers, ensuring a compact and reliable protection solution that eliminates the need for external wiring harnesses. Unlike generic releases, this unit is factory-tuned for instantaneous tripping, providing immediate disconnection when the control voltage drops below the safe threshold, thereby safeguarding both equipment and operators.

Highlights

• Rated control supply voltage: 24 V AC/DC, suitable for both alternating and direct current systems.
• Instantaneous tripping characteristic for rapid response to undervoltage conditions.
• Side-mounted design for seamless integration with ABB S200 MCBs, saving valuable panel space.
• Screw terminals accept flexible conductors from 0.75 to 2.5 mm² and rigid conductors from 0.75 to 4 mm².
• Complies with IEC/EN 60947-2 and IEC/EN 60898-1, ensuring global acceptance and safety.

In daily use

Installed alongside an S200 breaker, this undervoltage release continuously monitors the control voltage. When the voltage falls below the preset level, the release trips the associated breaker within milliseconds, preventing motors from stalling, contactors from chattering, and sensitive electronics from brownout damage. Its IP20 protection and wide operating temperature range (-25 to +55 °C) make it suitable for most industrial control panels and distribution boards. The low power loss of just 1.5 W minimizes heat generation, contributing to a cooler enclosure and longer service life.

Full specifications

• Brand: ABB
• Model: 1SAM201904R1001
• MPN: 1SAM201904R1001
• EAN: 4013614320422
• Product Type: Undervoltage Release
• Rated Control Supply Voltage: 24 V AC/DC
• Rated Frequency: 50/60 Hz
• Power Loss: 1.5 W
• Compatibility: ABB S200 Series MCBs
• Mounting Type: Side-mounted
• Terminal Type: Screw Terminals
• Wire Cross-section (Flexible): 0.75 - 2.5 mm²
• Wire Cross-section (Rigid): 0.75 - 4 mm²
• Degree of Protection: IP20
• Operating Temperature Range: -25 to +55 °C
• Storage Temperature Range: -40 to +70 °C
• Standards: IEC/EN 60947-2, IEC/EN 60898-1
• Number of Modules: 1

Final note

For a dependable undervoltage protection that matches the quality of ABB's S200 breakers, this release is the professional's choice. Its precise engineering and compliance with international standards make it a cornerstone of safe electrical installations.