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Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 2A, Type D, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity

RS Stock No.:: 772-1246
Mfr. Part No.:: 5SY4102-8
Manufacturer:: Siemens

Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 2A, Type D, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity

Subtotal (1 unit)*

MYR271.88

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Units	Per Unit
1 +	MYR271.88

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RS Stock No.:: 772-1246
Mfr. Part No.:: 5SY4102-8
Manufacturer:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Number of Poles	1
	Product Type	Miniature Circuit Breaker
	Current Rating	2A
	Tripping Characteristics	Type D
	Rated AC Voltage	400V ac
	Rated DC Voltage	60V dc
	Mount Type	DIN Rail
	Breaking Capacity	10kA
	Range	SENTRON
	Series	5SY4
	Terminal Type	Screw
	IP Rating	IP20
	Standards/Approvals	IEC/EN 60898-1, IEC/EN 60947-2/UL1077
	Depth	76mm
	Height	90mm
	Width	18mm
	Better World Claim	Extended Product Life
	Better World Product	Yes

	Select all
	Brand Siemens
	Number of Poles 1
	Product Type Miniature Circuit Breaker
	Current Rating 2A
	Tripping Characteristics Type D
	Rated AC Voltage 400V ac
	Rated DC Voltage 60V dc
	Mount Type DIN Rail
	Breaking Capacity 10kA
	Range SENTRON
	Series 5SY4
	Terminal Type Screw
	IP Rating IP20
	Standards/Approvals IEC/EN 60898-1, IEC/EN 60947-2/UL1077
	Depth 76mm
	Height 90mm
	Width 18mm
	Better World Claim Extended Product Life
	Better World Product Yes

COO (Country of Origin):: DE

Siemens 5SY4 Series Miniature Circuit Breaker, 2A Rated Current, 400V Rated AC Voltage - 5SY4102-8

This miniature circuit-breaker provides single-pole overcurrent protection for AC and DC installations, designed for DIN‑rail mounting in infrastructure and industrial environments. It operates with a Type D tripping characteristic and supports 50/60 Hz supply systems, offering touch‑protected screw terminals and halogen‑free construction for standard electrical distribution applications.

Features and Benefits:

• 10 kA breaking capacity ensures secure fault interruption
• 60 V DC rating permits use in low-voltage DC circuits
• Type D tripping characteristic clears high inrush currents
• IP20 protection delivers Basic contact prevention with conductors connected
• 18 mm width enables Compact multi‑module panel layouts

Applications

• Suitable for industrial motor-start protection
• Ideal for mixed AC/DC control panels
• Used with DIN‑rail distribution assemblies
• Can be used for infrastructure electrical distribution
• Suitable for installations requiring UL1077‑approved components

What current at elevated temperatures should be expected?

Rated operational current is 2 A under standard conditions with reduced values at higher ambient temperatures, down to 1.7 A at 60 °C.

What conductor sizes can be terminated with the screw terminals?

It accepts solid and stranded conductors from 0.75 mm² up to 35 mm² and finely stranded conductors with ferrules up to 25 mm².

How many mechanical operations is the device specified for?

Mechanical service life is typically 10,000 operating cycles.

What are the torque requirements for Terminal tightening?

Tightening torque ranges from 2.5 N·m to 3.5 N·m (22 lbf·in to 31 lbf·in).

What environmental temperature range can it tolerate in operation?

Operational ambient temperature ranges from -40 °C up to a maximum of 70 °C.