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Siemens Residual Current Protection Device Component 3UL2201-3A

Siemens residual current protection summation current transformer, 40mm bushing, 1A.

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ManufacturerSiemens

Part number3UL2201-3A

Type Component Summation Current Transformer

Bushing Opening 40 mm

Rated Fault Current 1 A

ON Delay None

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Summation current transformer 40mm bushing diameter 1A rated fault current No ON delay Residual current detection

Product description

The Siemens 3UL2201-3A is a component residual current protection device functioning as a summation current transformer. It features a 40 mm bushing opening for conductor passage and is designed for a rated residual operating current of 1 Ampere. This device operates without an ON delay, ensuring immediate detection of residual currents.

This component is used in electrical safety systems to detect earth leakage currents, preventing electric shock and potential fires. It is typically integrated into larger switchgear assemblies for industrial, commercial, and residential electrical installations where enhanced safety is required.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3UL2201-3A. We provide reliable sourcing for electrical safety components and other automation hardware, ensuring quality and availability for your projects.

Technical specifications

Type	Component Summation Current Transformer
Bushing Opening	40 mm
Rated Fault Current	1 A
ON Delay	None

Common applications

Electrical safety systems

Industrial power distribution

Building electrical installations

Protection against electric shock

Switchgear assemblies

Compatible systems

Residual current relays Protective circuit breakers Industrial switchgear

Also known as

Siemens RCD Component 3UL2201-3A transformer Siemens residual current detector

Replaces / compatible with

This is a component intended for integration into larger residual current protection systems. Compatibility depends on the overall system design and associated protection relays.

Technical note

Expert tip

This component must be used in conjunction with a suitable residual current circuit breaker or relay to provide full protection.

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Frequently asked questions

What is the function of the Siemens 3UL2201-3A residual current protection component?

The Siemens 3UL2201-3A acts as a summation current transformer. It detects residual currents flowing through conductors passing through its 40mm bushing and is set for a rated fault current of 1A, contributing to electrical safety by triggering protective measures.