ATR13628-1 GRAMPO ATR PRESSAO RG3403 GRAMPO ATR RG3404-1 Grampo ATR Ritz
Electrical and
Mechanical
Characteristics
Catalog Reference
ATR13628-1 RG3403 RG3404-1
Description Aluminium body;
Smooth jaw;
Spring-loaded mounting
connection blade springloaded;
cluster bar
(ATR14442-1) self-locking
system;
Cable connection through
tin-plated copper ferrule
(not included in clamp)
Aluminum body;
Smooth jaw;
Eyescrew;
Cable connection through
plain ferrule
Allows the connection of 02 threaded terminals in the same clamp body
Aluminium body;
Smooth jaw;
Eyescrew;
Cable connection through threaded ferrule
 Rated Current (A) - 300 300
Short-
Circuit
Current
(lcc)
30 cycles
(kA)
15 20 20
60 cycles
(kA)
8 15 15
Connection Maximum Ø 30 mm 477 MCM CAA 
Ø 22.5 mm
Ø 22.5 mm
Minimum Ø 5 mm 6 AWG Cu
4 AWG CA
Ø 4 mm
Ø 4 mm
Cable
Ferrule
(mm²)
Maximum 50 70 70
Minimum 16 16 16
Installation Torque
(daN.m)
- 3.0 3.0
ASTM Designation - Type I
Class A
Grade 3
Type I
Class A
Grade 3
Approx. Weight (lb) 0.99 1.06 1.43

24764 ; 4514 

  ATR11627-1 GRAMPO ATR ATR17459-1 GRAMPO ATR BASTAO ISOLANTE ATR19433-1 GRAMPO ATR CUBICULO
Electrical and
Mechanical
Characteristics
Catalog Reference
ATR11627-1 ATR17459-1 ATR19433-1
Description Aluminium body;
Smooth jaw;
Eyescrew;
Cable connection through
plain ferrule
Aluminium body;
Smooth jaw;
Mounted to insulating tube
Ø 25 mm x 1,25 m;
Cable connection through
plain ferrule
Clamp mainly designed for switchgear grounding with vertical rectangular buses.
Aluminum body;
Smooth jaw;
Mounted to insulated pipe 
Ø 25 mm x 600 mm, with rubber handle;
Cable connection through plain ferrule
 Rated Current (A) 400 300 400
Shortcircuit
Current
(lcc)
30 cycles
(kA)
30 20 30
60 cycles
(kA)
23 15 23
Connection Maximum Buses
vertical 40 mm
horizontal 44 mm
circular 35 mm
477 MCM CAA 
Ø 22.5 mm
20 mm
(rectangular buses
Minimum Buses
vertical 6 mm
circular 6 mm
6 AWG Cu
4 AWG CA
Ø 4 mm
3 mm
(rectangular buses)
Cable
Ferrule
(mm²)
Maximum 95 70 95
Minimum 16 16 16
Installation Torque
(daN.m)
3.0 3.0 3.0
ASTM Designation Type I
Class A
Grade 5
Tipo II
Classe A
Grau 3
Type II
Class A
Grade 5
Approx. Weight (lb) 0.65 1.10 0.72

22738 ; 28560 ; 20544

  ATR17461-1 GRAMPO ATR VMR-S ATR17460-1 ATR17462-1 GRAMPO ATR VTT
Electrical and
Mechanical
Characteristics
Catalog Reference
ATR17461-1 ATR17460-1 ATR17462-1
Description Aluminum body;
Smooth jaw;
Mounted to hot stick tip
section Ø 25 mm x 1.25 m,
with coupling system;
Cable connection thr
Aluminum body;
Smooth jaw;
Mounted to telescopic hot stick, Ø 33 mm base,
retracted length 1 m and
extended length 1.80 m;
Cable connection through plain ferrule
CAluminium body;
Smooth jaw;
Fixed to telescopic hot stick - Ø 33 mm base, retracted
length 1.43 m and
extended length 2.58 m;
Cable connection through plain ferrule 
 Rated Current (A) 300 300 300
Shortcircuit
Current
(lcc)
30 cycles
(kA)
20 20 20
60 cycles
(kA)
15 15 15
Conexão Maximum 477 MCM CAA 
Ø 22.5 mm
477 MCM CAA 
Ø 22.5 mm
477 MCM CAA 
Ø 22.5 mm
Minimum 6 AWG Cu
4 AWG CA
Ø 4 mm
6 AWG Cu
4 AWG CA
Ø 4 mm
6 AWG Cu
4 AWG CA
Ø 4 mm
Cable
Ferrule
(mm²)
Maximum 70 70 70
Minimum 16 16 16
Installation Torque
(daN.m)
3.0 3.0 3.0
ASTM Designation Type II
Class A
Grade 3
Type II
Class A
Grade 3
Type II
Class A
Grade 3
Approx. Weight (lb) 1.10 1.40 1.40

28572 ; 28571 ; 28573