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Siemens 3UN6020 Tripping Unit for PTC Thermistors

Siemens 3UN6020 Tripping Unit

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ManufacturerSiemens

Part number3UN6020

Type Tripping Unit

Protection Type Open Type

For PTC Thermistors

IP Rating IP20

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12-month warranty

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Veteran-owned

CAGE: 9NK75

PTC Thermistor Monitoring IP20 Protection DC 24V Operation LED Status Indicator Reclosing Lockout Function Open Type Design

Product description

The Siemens 3UN6020 is a tripping unit designed for open-type applications, offering protection for systems utilizing PTC (Positive Temperature Coefficient) thermistors. This unit has an IP20 protection rating, making it suitable for installation within control cabinets where it is shielded from direct contact and environmental contaminants. It operates on a DC 24V supply voltage.

Key features include an LED indicator for status monitoring and a reclosing lockout function to prevent unintended restarts. This tripping unit is ideal for motor protection and thermal monitoring applications in various industrial settings, ensuring the safety and longevity of electrical equipment.

Stanlo Automation, your veteran-owned surplus parts distributor, carries the Siemens 3UN6020. Find reliable protection components for your automation systems; contact us for availability.

Technical specifications

Type	Tripping Unit
Protection Type	Open Type
For	PTC Thermistors
IP Rating	IP20
Voltage	DC 24V
Features	LED Indicator, Reclosing Lockout

Common applications

Motor Protection

Thermal Monitoring

Industrial Control Panels

Electrical Safety Systems

Equipment Protection

Compatible systems

Requires compatible PTC thermistors and a DC 24V control power supply.

Also known as

Siemens 3UN6020

Replaces / compatible with

This tripping unit is designed for use with PTC thermistors in motor protection applications.

Technical note

Expert tip

When integrating the 3UN6020, ensure the PTC thermistors are correctly wired and that the reclosing lockout mechanism is properly engaged to prevent hazardous automatic restarts.

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Frequently asked questions

What is the voltage requirement for the Siemens 3UN6020 tripping unit?

The Siemens 3UN6020 tripping unit operates on a DC 24V supply voltage. It is designed for applications requiring this specific low-voltage DC power source.