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3B SCIENTIFIC ® PHYSICS
Assembly Kit "Bell, Relay and Bimetallic Switch" U8497700
Instruction Sheet
06/08 SP/ALF
1. Description
The bell, relay and bimetallic switch assembly kit is
used to construct different types of electromagnetic
switches and bimetallic strip switches.
2. Equipment supplied
1 Base-plate with three fixing positions
1 Bell, 70 mm diameter
2 Contact rods, each with three 4 mm holes
1 Leaf spring with plug
1 Bimetallic strip with plug
1 Armature with plug
1 Contact pin with plug
1 U-core, 20 × 20 mm²
1 Fixing screw for U-core
1 Coil, 800 turns.
3. Technical data
Base plate dimensions:
Weight:
4. Example switch assemblies
To assemble the switches the following additional
equipment is needed:
1 Transformer with rectifier (230 V, 50/60 Hz)
or
1 Transformer with rectifier (115 V, 50/60 Hz)
1 Lamp socket E14
1 Filament lamp, 12 V, 25 W, E14, as typical consu-
mer item
1
1 Base plate
2 U-core
3 Fixing screw for U-core
4 Coil
5 Bell
6 Contact rods
7 Bimetallic strip
Armature
8
9 Leaf spring
10 Contact pin
3
200×140×40 mm
approx.
1.6 kg approx.
U33300-230
U33300-115
U8495320
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