Product Description

Siemens 8WN4450-0HA00 Buzzer Element – 220V AC, 70mm, Pulsating Sound

The Siemens 8WN4450-0HA00 is a buzzer element for Siemens 8WN44 signalling columns, designed to provide an audible pulsating/discontinuous sound in industrial signalling and indication applications. The exact article has a 70 mm diameter, operates at 220 V AC, and uses a thermoplastic enclosure with IP65 degree of protection. Siemens' current July 2026 price-list data identifies the product as the 220 V AC discontinuous buzzer with a standard package quantity of 1 unit.

For SB Smart, this product is positioned as a Siemens industrial signalling accessory for visual/audible indication, panel signalling, machine status alerts, maintenance and procurement requirements.

Siemens 8WN4450-0HA00 Buzzer Element

The 8WN4450-0HA00 belongs to the Siemens 8WN44 signalling-column series, which uses modular elements with a 70 mm diameter. The 8WN44 system allows multiple signalling elements to be combined in one column, with up to 5 elements mountable in the modular arrangement.

The buzzer element is intended to generate an audible alert when energized, making it suitable for industrial equipment and electrical-panel signalling applications.

220 V AC Rated Voltage

The exact 8WN4450-0HA00 is designed for 220 V AC operation. Siemens product-selection data lists the 220 V AC version under the pulsating/discontinuous buzzer category.

The supply voltage should always be matched to the actual electrical circuit before installation.

Pulsating / Discontinuous Sound

The defining feature of the 8WN4450-0HA00 is its pulsating or discontinuous sound output.

Unlike a continuous-tone buzzer, the discontinuous sound provides an intermittent audible signal that can help distinguish an alarm or warning condition from other operating signals.

Siemens lists the related 8WN44 versions as:

• 8WN4420-0HA00 – 24 V AC/DC, pulsating tone

• 8WN4440-0HA00 – 110 V AC/DC, pulsating tone

• 8WN4450-0HA00 – 220 V AC, pulsating tone

70 mm Diameter

The 8WN4450-0HA00 is designed for the Siemens 70 mm signalling-column system. Siemens describes the 8WN44 series as having a 70 mm diameter thermoplastic enclosure.

This allows the buzzer to be used with the corresponding modular signalling-column components.

IP65 Protection

The 8WN44 signalling-column system is specified with an IP65 degree of protection. This provides protection against dust ingress and water jets under the applicable test conditions.

The overall installed protection level still depends on correct assembly and the complete signalling-column configuration.

Thermoplastic Enclosure

The 8WN44 signalling-column range uses a thermoplastic enclosure.

This provides a compact housing for the signalling element and supports its use in industrial environments.

Modular Signalling Column System

The 8WN4450-0HA00 is not intended as a standalone complete signalling column. It is a modular buzzer element that can be assembled with compatible 8WN44 components.

The 8WN44 system supports combinations of:

• Buzzer elements

• Continuous light elements

• Blinking light elements

• Connection components

• Covers

• Mounting accessories

Siemens documentation states that up to 5 elements can be mounted in the modular 8WN44 signalling-column system.

Audible Alarm and Warning Applications

The buzzer element can provide audible notification for conditions such as:

• Equipment alarms

• Fault indication

• Machine-status alerts

• Electrical-panel warnings

• Process notifications

• Operator attention signals

• Industrial equipment status indication

The actual alarm logic is determined by the electrical control circuit connected to the buzzer.

Industrial Signalling Applications

The 8WN4450-0HA00 can be considered for compatible applications such as:

• Industrial control panels

• Electrical distribution panels

• Machine panels

• Switchboards

• Equipment warning systems

• Factory signalling systems

• Industrial machinery

• Maintenance and replacement applications

It is especially useful where an intermittent audible signal is preferred.

Continuous vs Pulsating Buzzer

Siemens offers both continuous and pulsating buzzer elements for the 8WN44 system.

For 220 V AC:

8WN4450-0GA00: Continuous tone

8WN4450-0HA00: Pulsating/discontinuous tone

The correct version should be selected according to the desired signalling function.

Compatible Light Elements

The 8WN44 modular system also includes LED light elements for different colours and voltage ratings. Siemens lists 220 V AC versions in:

• Red

• Green

• Yellow

• Clear

• Blue

Both continuous and blinking LED elements are available.

This allows the buzzer to be combined with visual indication in a single signalling column.

Mounting and Connection Accessories

Siemens lists compatible 8WN44 accessories including:

• 8WN4408-0AF00 – Connection components, screw terminals

• 8WN4408-0AG00 – Caps for light elements

• 8WN4408-0DH00 – Foot with 60 mm pipe

• 8WN4408-0DJ00 – Foot with 80 mm pipe

• 8WN4408-0DA00 – Foot with 110 mm pipe

• 8WN4408-0CC00 – Side-mounting bracket

• 8WN4408-0CF00 – Side-mounting bracket

• 8WN4408-0CG00 – Fold-out support

The exact accessories required depend on the intended signalling-column installation.

Standard Package Quantity

Siemens' current July 2026 price-list data specifies a standard package quantity of 1 unit for 8WN4450-0HA00.

This makes the product suitable for individual replacement, panel assembly and maintenance procurement.

Replacement and Maintenance

The 8WN4450-0HA00 can be useful when an existing 8WN44 signalling column requires replacement of its 220 V AC pulsating buzzer element.

Before ordering, verify:

• Exact 8WN series

• Element diameter

• Supply voltage

• Continuous or pulsating sound requirement

• Modular compatibility

• Existing mounting arrangement

• Required connection accessories

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 8WN4450-0HA00 is relevant for:

• Electrical panel builders

• Industrial buyers

• Maintenance departments

• Electrical contractors

• Machine builders

• OEM maintenance teams

• Electrical product dealers

• Replacement-part procurement

For SB Smart, the product is positioned around industrial electrical product supply and procurement, without claiming automation integration or automation-service work.

Key Features

• Siemens 8WN44 signalling-column element

• Article number 8WN4450-0HA00

• Buzzer element

• Pulsating / discontinuous sound

• 220 V AC

• 70 mm diameter system

• Thermoplastic enclosure

• IP65 signalling-column system

• Compatible with modular 8WN44 signalling columns

• Up to 5 signalling elements can be combined in the system

• Standard package quantity: 1 unit

Benefits

• 220 V AC operation: Suitable for compatible industrial signalling circuits.

• Pulsating sound: Provides an intermittent audible warning signal.

• 70 mm modular format: Fits the Siemens 8WN44 signalling-column system.

• IP65 system design: Suitable for demanding industrial signalling environments when correctly assembled.

• Modular construction: Can be combined with compatible light and signalling elements.

• Multiple mounting options: Compatible with a range of 8WN44 mounting accessories.

• Individual replacement: Convenient for maintenance and spare-part procurement.

Why Choose Siemens 8WN4450-0HA00?

The Siemens 8WN4450-0HA00 is a 220 V AC pulsating/discontinuous buzzer element for the 70 mm 8WN44 signalling-column system. Siemens documentation specifies it as the 220 V AC version of the pulsating buzzer family, with the 8WN44 system providing IP65 protection and modular installation of up to five elements.

It is suitable for customers looking to buy or source Siemens buzzer elements for industrial alarm indication, machine signalling, control panels, switchboards, maintenance and replacement requirements.

For SB Smart, this product is best presented as a Siemens industrial signalling component for supply and procurement across India.

Delivery Across India

SB Smart supplies Siemens industrial electrical products and signalling accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 8WN4450-0HA00?

The 8WN4450-0HA00 is a Siemens 220 V AC buzzer element for the 8WN44 70 mm signalling-column system, producing a pulsating/discontinuous sound.

2. What is the operating voltage?

The operating voltage is 220 V AC.

3. What type of sound does it produce?

It produces a pulsating or discontinuous tone.

4. What is the diameter of the signalling-column system?

The 8WN44 system has a 70 mm diameter.

5. What is the protection rating?

The 8WN44 signalling-column system is specified with IP65 protection.

6. Can it be combined with LED light elements?

Yes. The 8WN44 system is modular and supports buzzer elements together with compatible continuous or blinking LED light elements.

7. How many elements can be mounted in one signalling column?

Siemens specifies up to 5 elements for the modular 8WN44 system.

8. What is the difference between 8WN4450-0GA00 and 8WN4450-0HA00?

8WN4450-0GA00 provides a continuous tone, while 8WN4450-0HA00 provides a pulsating/discontinuous tone.

9. What is the standard package quantity?

The current Siemens price-list data specifies 1 unit.

10. Where can I buy Siemens 8WN4450-0HA00 in India?

SB Smart supplies Siemens industrial electrical products, signalling columns and buzzer elements in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.