The ZB4BW0B31 is a Harmony XB4 light block assembly with a metal body, green integral LED, and 1 NO contact configuration, suitable for 24V AC/DC applications.
Product ModelZB4BW0B31
Product ID24724
Stock on Request
Last updated: 9/5/2026
Key Features
1
Feature-
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 body/contact assembly and light block
Device short name
ZB4
Fixing collar material
Zamak
Sale per indivisible quantity
1
Head type
Standard
Contacts type and composition
1 NO
Contact operation
Slow-break
Connections - terminals
Screw clamp terminals, <= 2 x 1.5 mm² with cable end EN 60947-1Screw clamp terminals, >= 1 x 0.22 mm² without cable end EN 60947-1
Light source
Protected LED
Bulb base
Integral LED
Light block supply
Direct
Light source colour
Green
[Us] rated supply voltage
24 V AC/DC 50/60 Hz
CAD overall width
1.2 in (30 mm)
CAD overall height
1.9 in (47 mm)
Terminals description ISO n°1
(13-14)NO
Net Weight
0.141 lb(US) (0.064 kg)
Contacts usage
Standard
Positive opening
Without
Operating travel
0.1 in (2.6 mm) NO changing electrical state)0.2 in (4.3 mm) total travel)
Operating force
2.3 N NO changing electrical state
Operating torque
0.44 lbf.in (0.05 N.m) NO changing electrical state
Mechanical durability
5000000 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/IEC 60947-5-1 appendix C1000000 cycles, AC-15, 3 A 120 V 3600 cyc/h 0.5 EN/IEC 60947-5-1 appendix C1000000 cycles, AC-15, 4 A 24 V 3600 cyc/h 0.5 EN/IEC 60947-5-1 appendix C1000000 cycles, DC-13, 0.2 A 110 V 3600 cyc/h 0.5 EN/IEC 60947-5-1 appendix C1000000 cycles, DC-13, 0.5 A 24 V 3600 cyc/h 0.5 EN/IEC 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