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Siemens 5SL6320-7 3-Pole Miniature Circuit Breaker — 20A, 400V, 6kA

Siemens 5SL6320-7 3-pole Miniature Circuit Breaker - 20A.

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ManufacturerSiemens

Part number5SL6320-7

Rated voltage 400V AC

Number of poles 3

Rated current 20A

Breaking capacity 6kA

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3-pole protection 6kA breaking capacity Type C tripping curve Handles moderate inrush currents DIN rail mountable Three-phase application

Product description

The Siemens 5SL6320-7 is a robust 3-pole miniature circuit breaker designed for reliable protection of three-phase circuits up to 400V. With a 6kA breaking capacity and a Type C tripping characteristic, it is rated for 20A and is ideal for circuits with moderate inrush currents, ensuring safety and operational continuity.

This circuit breaker is commonly applied in industrial environments for the protection of three-phase motors, control panels, and distribution circuits where higher starting currents are expected. Its Type C curve allows for temporary overcurrents without tripping, while still providing effective protection against short circuits.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SL6320-7. We are committed to providing essential industrial automation components to our customers, ensuring reliable performance and value for your operational needs.

Technical specifications

Rated voltage	400V AC
Number of poles	3
Rated current	20A
Breaking capacity	6kA
Tripping characteristic	C
Mounting	DIN rail

Common applications

Three-phase motor protection

Industrial control cabinets

Machine tools

HVAC systems

Pump stations

Commercial distribution

Compatible systems

Standard DIN rail mounting systems Siemens distribution boards Three-phase electrical systems

Also known as

Siemens 5SL6320-7 MCB Siemens 20A 3-pole breaker 5SL6 3-pole breaker

Replaces / compatible with

Compatible with Siemens 5SL circuit breaker accessories.

Technical note

Expert tip

The 5SL6320-7 is suitable for protecting three-phase equipment where the starting current can momentarily exceed the nominal operating current.

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Frequently asked questions

What is the purpose of the Type C tripping curve on the Siemens 5SL6320-7?

The Type C tripping curve on the Siemens 5SL6320-7 is designed to accommodate moderate inrush currents typical of inductive loads like motors. It will trip between 5 to 10 times its rated current, providing protection against short circuits without nuisance tripping from normal motor start-up.