ALPHA Distribution Boards and Terminal Blocks

© Siemens AG 2010
ALPHA FIX Terminal Blocks
Combination Plug-In Terminals
8WH9 plug-in connectors
■ Overview
Plug-in connectors,
terminal size 2.5 mm²,
gray
Plug-in connectors,
terminal size 2.5 mm²,
blue
Plug-in connectors,
terminal size 2.5 mm²,
green-yellow
Cover plates,
for plug-in connectors,
terminal size 2.5 mm²
Assembled by the user in-situ from single-pin elements, the
plug-in connectors in kit form provide a custom solution for every
task.
The basic single-pole connector elements are available in the
colors gray, blue and green-yellow.
■ Design
The required number of single-connector elements and one
cover are needed for each multi-pole connector. The individual
elements and the cover are simply pushed together and latched
with securing pins.
When assembling connectors for direct installation, an element
with securing pins should be fitted at each end of the connector.
For longer connectors, it is advisable to use an element with securing
pins for at least every sixth element.
To ensure that the elements engage securely, the holes must be
burr-free.
Example of a 6-pin connector
I2_12634
■ Technical specifications
8WH9 050-0LB00
8WH9 050-0LB01
8WH9 050-0LB07
8WH9 050-0AB00
8WH9 050-0AB01
8WH9 050-0AB07
Dimensions
• Width / length / width of cover in mm 5.2 / 37.2 / 2.2 6.2 / 48.6 / 3.2
• Height (TS 35/7.5 / TS 35/15) in mm 18 22.3
Technical specifications acc. to IEC/DIN VDE
• Max. load current in A 1) / cross-section in A / mm² 24 / 4 32 / 6
• Rated impulse withstand voltage in kV / pollution degree 6 / 3 8 / 3
• Overvoltage category / insulating group III / I III / I
Connection capacities
• Flexible with end sleeve with plastic sleeve in mm² 0.25 ... 2.5 0.25 ... 4
• Flexible with end sleeve without plastic sleeve in mm² 0.25 ... 2.5 0.25 ... 4
• Flexible with two-wire connection end sleeve with plastic sleeve in mm² 0.5 1
Stripped length 10
Plug gage (IEC 60947-1) A3 A4
Insulation type
PA
• Flammability class acc. to UL 94
V0
Approval data (UL/CUL and CSA)
• Rated voltage / current / cable sizes
- UL/CUL: in V/A / AWG 600 / 20 / 26-12 Applied for
- CSA: in V/A / AWG -- Applied for
Support rails/protective conductor busbars -- See section
Support Rails
-- See section
Support rails
1) Derating of the load current is necessary for higher temperatures and/or multi-pole combination plug versions.
14
Siemens ET A1 · 10/2009
14/19