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Description：

The ABB 1SDA073700R1 Undervoltage Coil is a high-reliability undervoltage release accessory used for remote tripping and voltage protection of ABB low-voltage power circuit breakers. This module automatically trips the circuit breaker when the control voltage falls below the specified threshold, helping protect electrical systems, industrial equipment, and personnel from unstable or insufficient voltage conditions.

Specification：

Frequently asked questions

Q1: What is the ABB 1SDA073700R1 Undervoltage Coil?

A1: It is an undervoltage release coil used in ABB circuit breaker systems to automatically trip the breaker when the supply voltage falls below a specified level.

Q2: What is the 1SDA073700R1 rated voltage of this undervoltage coil?

A2: The 1SDA073700R1 rated voltage is 220–240 V AC/DC.

Q3: What type of voltage does this device support?

A3: It supports both AC and DC voltage operation.

Q4: What is the 1SDA073700R1 rated AC voltage at 50 Hz?

A4: The 1SDA073700R1 rated AC voltage at 50 Hz is 220–240 V.

Product Applications

Electricity and Energy: Main distribution cabinets for power plants and substations (such as ABB Emax 2 series) are used for remote control and grid voltage loss protection.

High-end Manufacturing: In heavy machinery and precision automated production lines, they prevent damage to production equipment or the generation of defective products due to instantaneous voltage drops in the power grid.

Critical Infrastructure: In power distribution systems of data centers, rail transit hubs, and large hospitals, they serve as fundamental safety guarantees to prevent the expansion of low-voltage faults.

Ships and Offshore Engineering: Meet the high-reliability power outage protection requirements in harsh environments.