New Original Schneider XB4BSB444 XB4 emergency mushroom head modular red push button

New Original Schneider XB4BSB444 XB4 emergency mushroom head modular red push button - Imagen 2

New Original Schneider XB4BSB444 XB4 emergency mushroom head modular red push button - Imagen 3

New Original Schneider XB4BSB444 XB4 emergency mushroom head modular red push button - Imagen 4

New Original Schneider XB4BSB444 XB4 emergency mushroom head modular red push button

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Categoría: Schneider

New Original Schneider XB4BSB444 XB4 Emergency Mushroom Head Modular Red Push Button

1. Product Overview

The XB4BSB444 is a brand-new genuine emergency stop push button from Schneider Electric Harmony XB4 modular control component series. It adopts standard 22 mm panel mounting structure, fitted with chrome-plated metal mounting bezel, large red mushroom-shaped actuator, twist-to-reset mechanical structure and built-in two normally closed plus two normally open contact configuration (2NC+2NO). This emergency stop device is pre-assembled as a complete unit, widely installed on machine operation consoles, automation equipment panels, local control stations, production line control boxes and mechanical safety operation panels. Designed as a critical safety component for industrial equipment emergency cut-off, it features high mechanical locking reliability, superior dust and water protection performance, stable contact transmission and standardized modular design, which can maintain stable and reliable safety response performance in harsh industrial environments with vibration, dust and moisture.

2. Main Functions

Emergency Power Cut-off Protection

Once the mushroom head is pressed down rapidly under abnormal dangerous conditions, the internal normally closed contacts open immediately to break control circuits of contactors and relays, cutting off power supply of operating equipment to stop machinery movement instantly and avoid personal injury or equipment damage.
Twist Reset Mechanism Design

After emergency activation, the button stays locked in pressed position. Operators must rotate the mushroom head clockwise to release the interlock structure and restore the button to standby state for equipment restart, preventing accidental automatic reset and misoperation.
Dual-channel Signal Feedback Transmission

Equipped with both normally closed safety contacts and normally open auxiliary contacts. NC contacts execute safety circuit breaking; NO contacts transmit emergency stop trigger signals to PLC input modules, alarm indicators and fault monitoring systems for real-time fault recording and status feedback.
Modular Expansion Compatibility

Matched with full range of XB4 series contact bases and auxiliary accessories, it supports flexible adjustment of contact quantity to meet safety circuit design requirements for high-level safety-related control systems.
Standard Safety Color Identification

Bright red mushroom head complies with global industrial safety specification requirements, which can be quickly recognized by on-site operators as emergency stop components to ensure rapid response during risk incidents.

3. Technical Features

Core Electrical & Performance Specification Table

表格

Specification Item	Technical Parameter
Full Model Number	XB4BSB444
Product Series	Schneider Harmony XB4 Modular Control Components
Actuator Type	Large mushroom head emergency stop, twist-to-reset
Actuator Color	Red
Operating Mode	Latching when pressed, reset by clockwise twisting
Internal Contact Configuration	2 Normally Closed + 2 Normally Open (2NC+2NO), slow-break type
Terminal Identification	NC: 21-22, 31-32; NO: 13-14, 43-44
Rated Insulation Voltage (Ui)	600 V
Rated Impulse Withstand Voltage (Uimp)	6 kV
AC Rated Operating Current (AC-15)	6 A @ 120 V AC; 3 A @ 240 V AC
DC Rated Operating Current	0.55 A @ 125 V DC
Mechanical Endurance Life	1,000,000 operation cycles
Electrical Endurance Life (rated load)	500,000 operation cycles
Ingress Protection Rating	IP66, IP67, IP69K
Mechanical Impact Resistance Grade	IK06
Operating Ambient Temperature	-40 °C ~ +70 °C
Storage Temperature Range	-45 °C ~ +85 °C
Standard Panel Mount Hole Diameter	22 mm
Wiring Terminal Type	Screw clamping terminal
Applicable Wire Cross-section	0.22 ~ 2.5 mm² single solid wire; max 2 × 1.5 mm² wires with wire ferrules
Compliance Standards	IEC 60947-1, IEC 60947-5-1, relevant machinery safety regulations

Structural and Performance Advantages

High-strength Anti-corrosion Metal Bezel Assembly

Chrome-plated decorative bezel together with zinc alloy locking sleeve provides excellent scratch resistance, wear resistance and rust-proof capability, adapting to dusty, humid and slightly corrosive workshop working conditions.
High-reliability Silver Alloy Contact System

Silver-nickel alloy contact points resist electric arc ablation and oxidation effectively after frequent emergency triggering, keeping stable contact resistance for long-term safety operation and eliminating hidden dangers of poor contact in safety loops.
Multi-layer Sealing Waterproof and Dustproof Structure

Multi-channel internal sealing structure achieves high-level ingress protection, preventing dust accumulation and splashing water infiltration, and tolerates high-pressure water washing cleaning on equipment surface.
Safe Locking and Reset Mechanism

Precision internal mechanical latch ensures stable locked state after pressing; twist reset structure avoids unintended automatic rebound, conforming to mandatory emergency stop safety design requirements for mechanical equipment.
Anti-vibration Anti-loose Wiring Terminals

Anti-loosening screw structure prevents wire loosening caused by long-term equipment vibration, guaranteeing continuous and reliable connection of safety critical circuits.
Universal XB4 Modular Interface Design

Unified assembly interface supports combination with additional contact blocks, protection hoods and locking accessories, facilitating customized safety circuit design and on-site maintenance replacement.

4. Product Dimensions and Weight

Dimension Specification Table (Unit: mm)

表格

Dimension Description	Dimension Value
Overall Width	38
Overall Height	65
Rear Protruding Depth after Panel Installation	52
Complete Overall Outer Dimension	38 (W) × 65 (H) × 52 (D)

Weight Parameters

Single unit net weight: approximately 95 grams
Single unit gross weight with individual retail packaging: approximately 110 grams

WHO WE ARE

Sobre nosotros

Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.

Atifts Technology Co., Ltd. @ 2024

Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers. Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.

With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.

Where is your company located?

We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.

What types of electronic components does your company mainly sell?

We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.

What are the prices of your products?

Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.

How to purchase your electronic components?

You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.

How do you guarantee the quality of your products?

We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.

If I am not satisfied with the electronic components I purchased, can I return them?

We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.

Can your company provide technical support and solutions?

We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.

How to contact your customer service?

You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.

Does your company often organize promotional activities?

In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.