SchneiderPushbuttons, Switches, Pilot Lights, Control Stations and Joysticks

XB4BG21GEX

Name: XB4BG21GEX
Brand: Schneider
SKU: XB4BG21GEX

The XB4BG21GEX is a robust key selector switch designed for use in explosive atmospheres, offering high mechanical durability and secure connections.

Product ModelXB4BG21GEX

Product ID35504

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh mechanical durability with 5,000,000 cycles
2
FeatureSecure connections with screw clamp terminals
3
FeatureCompliant with IEC 60947-1 standards
4
FeatureIdeal for use in explosive atmospheres
5
FeatureEnhanced safety and reliability in harsh environments

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range of Product

Harmony XB4

Product or Component Type

Complete selector switch

Device short name

XB4

Bezel material

Chromium plated metal

Fixing collar material

Zamak

Mounting diameter

0.9 in (22 mm)

Sale per indivisible quantity

Dust zone

Zone 21 - 22

Gas zone

Zone 1 - 2

Type of operator

stay put

Operator profile

key switch

Key number

455

Contacts type and composition

1 NO

Width

1.8 in (46.2 mm)

Height

1.2 in (30 mm)

Depth

4.3 in (110 mm)

Net Weight

0.351 lb(US) (0.159 kg)

Device mounting

Fixing hole 0.9 in (22.5 mm) +/- 0.2 mm IEC 60947-1

Fixing center

>= 30 x 40 mm support panel) 0.04...0.2 in (1...6 mm)

Embedding Depth

2.3 in (58 mm)

marking

II 2 GDEx tb IIIC DbEx db eb IIC Gb

Shape of signaling unit head

Round

Operator position information

2 positions 90Â°

Key withdrawal position

Left-hand

Contact operation

Slow-break

Contacts usage

Standard contacts

Positive opening

Without

Mechanical durability

5000000 cycles

Connections - terminals

Screw clamp terminals, 2 x 1.5 mmÂ² with cable end IEC 60947-1Screw clamp terminals, 1 x 2.5 mmÂ² without cable end IEC 60947-1

Tightening torque

7.08...10.6 lbf.in (0.8...1.2 N.m) IEC 60947-1

[Ith] conventional free air thermal current

10 A IEC 60947-5-1

[Ui] rated insulation voltage

415 V

[Ie] rated operational current

1.9 A 380 V, AC, A600 IEC 60947-5-13 A 240 V, AC, A600 IEC 60947-5-16 A 120 V, AC, A600 IEC 60947-5-10.27 A 250 V, DC, Q300 IEC 60947-5-10.55 A 125 V, DC, Q300 IEC 60947-5-12.87 A 24 V, DC, Q300 IEC 60947-5-1

Protective treatment

Ambient Air Temperature for Storage

-40...158 °F (-40...70 °C)

Ambient Air Temperature for Operation

-4...167 °F (-20...75 °C)

IP degree of protection

IP66 IEC 60529

Standards

IEC 60079-0:2009EN/IEC 60079-1:2009IEC 60079-7:2009IEC 60079-31:2009UL 60079-0UL 60079-1UL 60079-31ANSI/ISA 12.12.01CSA C22.2 No 213

Product Certifications

INERIS 04ATEX9004U