ABB S3N030TW4 30A 4-Pole 600 V Circuit Breaker Potential Transformer

Elevate your electrical distribution with the ABB S3N030TW4—a 4-pole, 30 A circuit breaker designed for demanding industrial panels and protection schemes that demand both reliability and precise measurement. Built around ABB’s trusted protection technology, this device brings together robust current protection with a potential transformer option to streamline metering and relay coordination in a single, compact package.

• Current rating: 30 A — dependable overcurrent protection for feeder circuits and control panels without overkill that wastes space or energy.
• Poles: 4 — enhances isolation, enables multi-phase protection, and supports rigorous fault-clearing in complex distribution architectures.
• Voltage rating: 600 V — suitable for typical industrial power distribution environments, providing a clear margin for safety and performance.
• Potential Transformer integration — designed to work with metering and protection relays, helping you capture accurate voltage information for monitoring, alarms, and protective schemes without extra components.
• Part number: S3N030TW4 — a precise ABB specification that's easy to reference for service, stocking, and maintenance, ensuring compatibility with other S3N series accessories and mounting configurations.

This device is ideal for manufacturing floors, large control panels, and distribution cabinets where space efficiency, accurate voltage sensing, and reliable fault clearing are critical. The 4-pole configuration supports balanced operation across phases, reducing neutral and ground fault risks while ensuring consistent protection across the circuit.

Key benefits in real-world use:

• Simplified protection and metering — with the potential transformer option, you can feed relays and monitoring systems directly from the breaker, reducing wiring complexity and potential measurement errors.
• Efficient panel integration — ABB’s compact form factor and standardized mounting make it straightforward to drop into existing assemblies or new builds, aligning with 4-pole distribution strategies.
• Accurate protection coordination — precise trip characteristics combined with reliable voltage sensing help downstream protective devices react quickly and correctly, minimizing downtime.
• Durable industrial performance — designed for the rigors of plant environments, with stable operation across temperature and load swings typical of manufacturing and processing facilities.

Who benefits most from the S3N030TW4? electrical engineers and maintenance teams responsible for medium-voltage to low-voltage distribution in factories, campuses, and industrial plants where combined protection and metering capabilities save time, space, and wiring complexity. If you’re updating legacy panels or specifying new protection schemes, this ABB solution offers a practical, reliable path to robust circuit protection with integrated measurement support.

Tips for optimal use:

• Pair the S3N030TW4 with compatible S3N accessories to maximize mounting flexibility and coordination with surrounding devices.
• Leverage the potential transformer feature to feed energy meters and protection relays, ensuring accurate voltage readings under varying load conditions.
• Document the part reference (S3N030TW4) in maintenance logs to streamline future service, replacements, and spare-part planning.