improve what moves
ESD energy chain E4.21 series | Openable along the inner and outer radius | Inner height: 21mm
Inner height hi: 21mmInner width Bi: 30 - 70mmBend radii R: 48 - 100mmPitch: 30.5mmFor permanent, maintenance-free conductivityFor almost any applicationHigh push/pull strength for long travels and large unsupported lengthsStrong: crossbars with double locking
Part No.
Inner width [Bi] [mm]
Bend radius [R] [mm]
Inner height [Hi]
21 mm
Max. cable diameter
18 mm
Opening principle
Can be opened along the inner and outer radius
Selection Info
Purchase method
Assembled PartsFully assembled chain (Including the separators)
Installation type
unsupported
Bracket
KMA, pivotingE4.210.030.1.12.ESD.A
Bracket Type
without C-profile
Mounting variant
A3
Dimensions
Fold
Inner height [Hi] [mm]
21 Fold
Inner width [Bi] [mm]
30 Fold
Outer height Ha [mm]
28 Fold
Outer width [Ba] [mm]
44 Fold
Bend radius [R] [mm]
48 Fold
Pitch [mm]
30.5 Fold
Chain links per metre
33 Fold
Max. cable diameter [mm]
18 Fold
H [mm]
124 Fold
D [mm]
95 Fold
K [mm]
215 Fold
H2 [mm]
96 Fold
D2 [mm]
95 Fold
K2 [mm]
215 Fold
DeltaHF [mm]
30 Fold
Velocity FLG unsupported max. [m/s]
20 Fold
Acceleration FLG max. [m/s²]
200 Fold
Maximum unsupported length [m]
2.5 Fold
Maximum long travel [m]
120 Fold
General properties
Fold
Opening principle
Can be opened along the inner and outer radius Fold
maximum fill weight [kg/m]
4 Fold
Colour
grey Fold
Energy chain system
E4.1 ESD Fold
Shipping weight (kg or kg/m)
0.50457 Fold
Temperature e-chain min. [°C]
-40 Fold
Temperature e-chain max. [°C]
120 Fold
Dynamic information
Fold
v max. unsupported (speed) [m/s]
20 Fold
v max. gliding (speed) [m/s]
10 Fold
Additional information and diagrams
Fold
The unsupported length depends on fill weight
X axis: unsupported length in m FLB/FLG
Y axis: fill weight in kg/m
Lower scale: travel S in m
FLB = unsupported with permissible sag
FLG = unsupported with straight upper run
Reference example A:
fill weight = 2 [kg/m]
unsupported length FLB = 1.25 m
travel = 2.5 m
A=moving end, B=fixed end
Pitch: 30.5 mm
Chain links per m: 33
Travel: S
Chain length = S/2 + K
From 10 m to max. 120 m
Chain length = S/2+K2
Long travel - gliding (up to max. 120 m)
Here the e-chain® is used with the upper run gliding on the lower run. We recommend letting our engineers support you when planning this type of system. In case of travel lengths between 4.0m and 10m, we recommend a larger unsupported e-chain®.
A1 = moving end
A2 = fixed end
A3 = Guide trough with glide bar
A4 = Guide trough without glide bar
A5 = Total length of the guide trough
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