Siemens SENTRON Series Current Transformer 150 A 150:5 2.5 VA 720V

RS庫存編號:: 175-6142
製造零件編號:: 4NC5121-2CC21
製造商:: Siemens

Siemens SENTRON Series Current Transformer 150 A 150:5 2.5 VA 720V

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HK$650.50

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RS庫存編號:: 175-6142
製造零件編號:: 4NC5121-2CC21
製造商:: Siemens

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選取全部	屬性	值
	品牌	Siemens
	Product Type	Current Transformer
	Series	SENTRON
	Power Rating	2.5VA
	Secondary Current	5A
	Terminal Type	Screw
	Minimum Operating Temperature	-30°C
	Primary Current	150A
	Maximum Operating Temperature	55°C
	Depth	55mm
	Weight	304g
	Standards/Approvals	DIN EN 61346-2
	Width	60mm
	Turns Ratio	150:5
	Supply Voltage	720V

	選取全部
	品牌 Siemens
	Product Type Current Transformer
	Series SENTRON
	Power Rating 2.5VA
	Secondary Current 5A
	Terminal Type Screw
	Minimum Operating Temperature -30°C
	Primary Current 150A
	Maximum Operating Temperature 55°C
	Depth 55mm
	Weight 304g
	Standards/Approvals DIN EN 61346-2
	Width 60mm
	Turns Ratio 150:5
	Supply Voltage 720V

Datasheet

COO (Country of Origin):: IN

Siemens SENTRON Series Current Transformer, 150A primary current, 5A secondary Current - 4NC5121-2CC21

This current transformer converts high primary currents to a standard secondary for measurement and protection tasks in low-voltage networks. It is designed for indoor electrical installations, with an insulation rating suitable for systems up to 0.72 kV and operation across standard power frequencies. The device incorporates a bushing-style through-conductor arrangement and provides touch-protected connections for safe integration with existing switchgear and metering equipment.

Features and Benefits:

• 150:5 turns ratio delivers predictable scaling for instruments
• 2.5 VA power rating CT limits burden on measurement circuits
• Class 1 accuracy ensures measured values meet metering tolerances
• Screw-terminal current transformer enables secure conductor termination
• Rated for -30 to 55°C operation for varied plant environments

Applications

• Suitable for panel-mounted energy monitoring installations
• Used with metering relays for overcurrent detection tasks
• Ideal for integration into distribution switchboards
• Can be used for industrial load current measurement points
• Used for protection coordination studies in substations

What short-time thermal capability does it use?

The rated short-time thermal current is specified as a multiple of the primary rated current using the formula Ith = x·Ipr per IEC 61869-2.

How is dynamic withstand defined for fault conditions?

Dynamic current is given as Idyn = 2.5·Ith or 150·Ipr according to IEC 61869 for the design.

What mechanical fixing and conductor sizes are supported?

It fastens by screw fixing and accepts a push-through conductor or busbar with up to 19 mm outer diameter.

What protection and indoor suitability does it provide?

It has IP20 ingress protection, touch-protection features, and is intended for interior use only.