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Siemens 5SY4216-6 2-Pole Miniature Circuit Breaker — 16A, B-Curve

Siemens 5SY4216-6 2-pole miniature circuit breaker.

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ManufacturerSiemens

Part number5SY4216-6

Poles 2

Rated Voltage 400V AC

Breaking Capacity 10kA

Tripping Curve B

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CAGE: 9NK75

2-pole protection 10kA short-circuit rating B-curve tripping characteristic 400V operational voltage Sensitive tripping

Product description

The Siemens 5SY4216-6 is a 2-pole miniature circuit breaker designed for domestic and light commercial applications. It has a rated voltage of 400V, a 10kA breaking capacity, and a B-curve tripping characteristic, making it suitable for circuits with low inrush currents. This model is rated for 16 Amperes and has a width of 70 mm.

The B-curve is the most sensitive tripping curve and is typically used for the protection of resistive loads and very small inductive loads, such as small appliances and portable equipment. It trips at currents between 3 to 5 times the rated current.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SY4216-6 to help you maintain your automation systems. We are committed to providing quality components and excellent service.

Technical specifications

Poles	2
Rated Voltage	400V AC
Breaking Capacity	10kA
Tripping Curve	B
Current Rating	16A
Width	70 mm

Common applications

Residential electrical panels

Small appliance circuits

Domestic lighting

Small motor loads

Portable equipment

Compatible systems

Standard DIN rail mounting systems

Also known as

Siemens 5SY4216-6 MCB Siemens 16A B-curve breaker 5SY4 Series B-curve breaker

Replaces / compatible with

Compatible with Siemens 5SY series circuit breakers and accessories.

Technical note

Expert tip

The B-curve is not recommended for circuits with higher inrush currents, such as larger motors or transformers, as it may lead to premature tripping.

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Frequently asked questions

What is the purpose of the B-curve on the Siemens 5SY4216-6?

The B-curve on the Siemens 5SY4216-6 provides very quick tripping for low overcurrents, typically between 3 to 5 times the rated current. This makes it ideal for protecting sensitive resistive loads and very small inductive loads found in domestic settings.