Interlock unitPower connection kit
for reversing
Types and combination products
z Mechanical interlock unit……connecting two magnetic contactors to mechanically lock them.
Product name Applicable products
Type
Mechanical interlock units
FJ-B06,B09,B12 FJ-B06/G,B09/G,B12/G
SZ1KRM
FJ-B18,B25,B32 FJ-B18/G,B25/G,B32/G
SZ-RM-C
z Power connection kit for reversing……for wiring between main circuit terminals
Product name
Wire size
Type Applicable products Type
Power
connection kit for
reversing
AWG14 (ø1.6)
• A power-side kit • A load-side kit
FJ-B06,B09,B12
FJ-B06/G,B09/G,B12/G
SZ1KRW1W
• A power-side kit • A load-side kit
FJ-B18B,B18/G SZ-RW21-C
FJ-B25,B32,B25/G,B32/G SZ-RW23-C
SZ1KRM
SZ-RM-C
z Power connection kit for reversing
SZ1KRW1W
Used on the power side
Used on the load side
Dimensions
z Mechanical interlock unit
• Interlock
• Coupling element
(Note 1) An interlock unit is composed of an interlock element and a coupling element.
(Note 2) In accordance with the Dimensions of the combination magnetic contactors,
please refer to the reversing magnetic contactors and switches shown in P 21 - 22.
Mass: 25g
25
17
13
47
36
41
31.5 13
1 3 5
2 4 6
1 3 5
2 4 6
Mass: 8g Mass: 7g
About 66.5
62.9
45.5
28.1
About 66.5
62.9
45.5
28.1
83.8 Mass: 11g
22
7
Features
• The reversing magnetic contactor can be conveniently
assembled by using the reversing connection kit combined with
the mechanical interlock unit.
• Through a mechanical structure, two magnetic contactors are
prevented from being switched on at the same time.
Mechanical Interlock units and power connection kit for reversing
Ordering information
z Mechanical Interlock units
z Power connection kit for reversing
SZ-RM - C SZ-RW21 - C
(1) Type (2) Type
Information subject to change without notice
30
Contactors and Thermal Overload Relays