Siemens SENTRON 5SY4603-5 Miniature Circuit Breaker Datasheet

General Technical Data

Number of poles	4
Design of pole	3P+N
Tripping characteristic class	A
Mechanical service life (operating cycles) typical	10,000
Overvoltage category	III
Degree of pollution	3

Voltage

Type of voltage of the operating voltage	AC
Insulation voltage (Ui)	440 V
Supply voltage with single-phase operation at AC rated value	230 V

Operational Current

At 40 °C rated value: 2.86 A
At 50 °C rated value: 2.71 A
At 55 °C rated value: 2.62 A
At 60 °C rated value: 2.54 A
At AC rated value: 3 A

Supply Voltage

Supply voltage at AC	400 V
Supply voltage at DC rated value	60 V
Value range of the supply voltage frequency	50/60 Hz
Operating voltage at DC rated value maximum	72 V

Protection Class

Protection class IP: IP20, with connected conductors

Breaking Capacity

Switching capacity current at DC according to IEC 60947-2 rated value	15 kA
Switching capacity current according to EN 60898 rated value	10 kA
Switching capacity current according to IEC 60947-2 rated value	35 kA

Dissipation

Power loss [W] for rated value of the current at AC in hot operating state per pole	1.9 W
Suitability for operation	Infrastructure / Industry

Product Details

Product feature touch protection: Yes
Product component: combined terminal top, combined terminal bottom, neutral conductor switching
Product feature properties for main switches in accordance with EN 60204-1: Yes
Product feature halogen-free: Yes
Product feature sealable: Yes
Product feature silicon-free: Yes
Product extension installable supplementary devices: Yes

Product Function

Set values setting current (Ii) for I-tripping	2.5 A
Reference value setting current (Ii) for I-tripping	x In

Short Circuit

Short-circuit current breaking capacity (Icn) at AC according to UL 1077 and CSA C22.2 No.235	5 kA

Connections

Connectable Conductor Cross-Section

Type	Minimum	Maximum
Solid	0.75 mm²	35 mm²
Stranded	0.75 mm²	35 mm²
Finely stranded with core end processing	0.75 mm²	25 mm²

AWG Number

Minimum	18
Maximum	4

Tightening Torque

With Screw-Type Terminals [lbf·in]	22 - 31 lbf·in
With Screw-Type Terminals [N·m]	2.5 - 3.5 N·m

Mechanical Design

Height	90 mm
Width	72 mm
Depth	76 mm
Installation depth	70 mm
Number of modular width units	4
Fastening method	DIN rail
Mounting position	Any
Net weight	655 g

Environmental Conditions

Influence of the surrounding temperature	max. 95% RH up to 55°C, max. 55% RH up to 70°C, max. 35% RH up to 75°C
Standard	IEC / EN 60898-1, IEC / EN 60947-2 / UL1077
Vibration resistance according to IEC 60068-2-6	±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz
Ambient temperature during operation (minimum)	-40 °C
Ambient temperature during operation (maximum)	70 °C
Ambient temperature during storage (minimum)	-40 °C
Ambient temperature during storage (maximum)	75 °C
Number of test cycles for environmental testing according to IEC 60068-2-30	6

Diagrams and Dimensions

The document includes diagrams illustrating the physical dimensions and internal schematic of the miniature circuit breaker.

Physical Dimensions

One diagram shows the front and side profiles, indicating:

Height: 89.8 mm
Width: 70.4 mm (for 4 poles)
Depth: 76 mm
Side view depth: 69.8 mm
Side view width (mounting clip): 6.2 mm

Another view shows the top profile.

Circuit Schematic

A circuit diagram represents the internal connections for a 3+N pole configuration. It shows terminals numbered 1 through 8, with terminals 7 and 8 designated for the neutral conductor ('N'). Each pole (1-2, 3-4, 5-6) is depicted with a switch symbol representing the circuit breaker contacts. The schematic includes a symbol for the tripping mechanism and indicates connections related to neutral conductor switching.

Approvals and Certificates

The product has received various general product approvals, test certificates, and maritime/railway/environmental certifications, including:

UKCA
CE
UR (Underwriters Laboratories)
VDE
EAC (Eurasian Conformity)
QC PASS (Quality Control Pass)
ABS (American Bureau of Shipping)
LRS (Lloyd's Register)
Environmental Confirmations

Further Information

Information on the packaging: Link
Information- and Downloadcenter (Catalogs, Brochures,...): Link
Industry Mall (Online ordering system): Link
Service&Support (Manuals, Certificates, Characteristics, FAQs,...): Link
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...): Link
CAx-Online-Generator: Link
Tender specifications: Link

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SIEMENS SENTRON Miniature Circuit Breaker