The XB4BD21 is a 2-position voltage selector switch designed for industrial applications, featuring screw clamp terminals and 600V AC compatibility.
Product ModelXB4BD73
Product ID35491
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeatureEnhanced Control and Visibility
2
FeatureIndustrial-Grade Durability
3
FeatureVersatile Compatibility
4
FeatureEasy Installation
5
FeatureRobust Design
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
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
1
Shape of signaling unit head
Round
Type of operator
stay put
Operator profile
standard handle
Contact operation
Slow-break
Connections - terminals
Screw clamp terminals, <= 2 x 1.5 mm² with cable end EN/IEC 60947-1Screw clamp terminals, >= 1 x 0.22 mm² without cable end EN/IEC 60947-1
Height
1.9 in (47 mm)
Width
1.2 in (30 mm)
Depth
2.7 in (68 mm)
Terminals description ISO n°1
(3-4)NO
Net Weight
0.209 lb(US) (0.095 kg)
Resistance to high pressure washer
1015.3 psi (7000000 Pa) 131 °F (55 °C) 0.1 m
Contacts usage
Standard contacts
Positive opening
Without
Torque value
1.24 lbf.in (0.14 N.m) NO changing electrical state
Mechanical durability
1000000 cycles
Tightening torque
7.08...10.6 lbf.in (0.8...1.2 N.m) EN 60947-1
Shape of screw head
Cross Philips no 1Cross pozidriv No 1Slotted flat à 4 mmSlotted flat à 5.5 mm
Contacts material
Silver alloy (Ag/Ni)
Short-circuit protection
10 A cartridge fuse gG EN/IEC 60947-5-1
[Ith] conventional free air thermal current
10 A EN/IEC 60947-5-1
[Ui] rated insulation voltage
600 V 3)EN 60947-1
[Uimp] rated impulse withstand voltage
6 kV EN 60947-1
[Ie] rated operational current
3 A 240 V, AC-15, A600 EN/IEC 60947-5-16 A 120 V, AC-15, A600 EN/IEC 60947-5-10.1 A 600 V, DC-13, Q600 EN/IEC 60947-5-10.27 A 250 V, DC-13, Q600 EN/IEC 60947-5-10.55 A 125 V, DC-13, Q600 EN/IEC 60947-5-11.2 A 600 V, AC-15, A600 EN/IEC 60947-5-1
Electrical durability
1000000 cycles, AC-15, 2 A 230 V 3600 cyc/h 0.5 EN 60947-5-1 appendix C1000000 cycles, AC-15, 3 A 120 V 3600 cyc/h 0.5 EN 60947-5-1 appendix C1000000 cycles, AC-15, 4 A 24 V 3600 cyc/h 0.5 EN 60947-5-1 appendix C1000000 cycles, DC-13, 0.2 A 110 V 3600 cyc/h 0.5 EN 60947-5-1 appendix C1000000 cycles, DC-13, 0.5 A 24 V 3600 cyc/h 0.5 EN 60947-5-1 appendix C
Electrical reliability
Î < 10exp(-6) 5 V 1 mA in clean environment EN/IEC 60947-5-4Î < 10exp(-8) 17 V 5 mA in clean environment EN/IEC 60947-5-4
Device presentation
Complete product
Protective treatment
TH
Ambient Air Temperature for Storage
-40...158 °F (-40...70 °C)
Ambient Air Temperature for Operation
-13...158 °F (-25...70 °C)
Overvoltage category
Class I IEC 60536
IP degree of protection
IP69K IEC 60529
NEMA degree of protection
NEMA 13NEMA 4X
Standards
UL 508EN/IEC 60947-1CSA C22.2 No 14EN/IEC 60947-5-4EN/IEC 60947-5-5JIS C8201-5-1EN/IEC 60947-5-1JIS C8201-1
Product Certifications
CSABVDNVULLROS (Lloyds register of shipping)GL
Vibration resistance
5 gn 2...500 Hz)IEC 60068-2-6
Shock resistance
30 gn 18 ms) half sine wave acceleration IEC 60068-2-2750 gn 11 ms) half sine wave acceleration IEC 60068-2-27
XB4BD21 Schneider Electric 2-Position Voltage Selector Switch | INDSLT
