Description

Designed for 20 A feeders, this moulded case circuit breaker provides robust short-circuit and overload protection with an 18 kA breaking capacity across common AC voltages. It drops neatly into new builds or retrofits, and for turnkey panels it integrates cleanly with our industrial panel fabrication to standardize layout and wiring.

Key Specifications – Moulded Case Circuit Breakers

• Model: A1B 125 TMF 20-400 3P FF

• Device type: Moulded Case Circuit Breaker

• Poles: 3P

• Rated current (In): 20 A

• Icu: 18 kA at 240 V AC

• Icu: 18 kA at 380 V AC

• Mounting: Fixed type (FF)

• Trip unit: TMF thermal-magnetic

Highlights

• Higher 18 kA Icu for tougher fault levels

• Compact frame suited to dense control panels

• Clear terminal markings for fast installation

• Reliable thermal-magnetic protection with simple settings

Typical Uses

• Branch and sub-distribution circuits

• HVAC, lighting, and motor lines requiring 18 kA Icu

• Commercial and light-industrial distribution boards

Installation & Support

Delivered ready to install with documentation covering conductor sizing, coordination, discrimination, and thermal management.

• Rapid fulfillment from managed inventory

• Optional commissioning assistance and maintenance plans