Specifications

31
Type Numbers and Product Codes
Product name Type Specification Used with
Auxiliary Contact Blocks
(Front mounting, Bifurcated Contact)
SZ1KA40
Contact arrangement: 4NO SK06 to SK12 *1
SKH4 *1
SZ1KA31
Contact arrangement: 3NO+1NC
SZ1KA22
Contact arrangement: 2NO+2NC
SZ1KA13
Contact arrangement: 1NO+3NC
SZ1KA04
Contact arrangement: 4NC
SZ1KA20
Contact arrangement: 2NO SK06 to SK12
SKH4 
SZ1KA11
Contact arrangement: 1NO+1NC
SZ1KA02
Contact arrangement: 2NC
Auxiliary Contact Blocks
(Front mounting, Single Button Contact)
SZ1KA40H
Contact arrangement: 4NO SK06 to SK12 *1
SKH4 *1
SZ1KA31H
Contact arrangement: 3NO+1NC
SZ1KA22H
Contact arrangement: 2NO+2NC
SZ1KA13H
Contact arrangement: 1NO+3NC
SZ1KA04H
Contact arrangement: 4NC
SZ1KA20H
Contact arrangement: 2NO SK06 to SK12
SKH4
SZ1KA11H
Contact arrangement: 1NO+1NC
SZ1KA02H
Contact arrangement: 2NC
Auxiliary Contact Blocks
(Small Front mounting, Bifurcated Contact)
SZ1FA11
Contact arrangement: 1NO+1NC SK06 to SK12
SKH4
Auxiliary Contact Blocks
(Small Front mounting, Single Button Contact)
SZ1FA11H
Contact arrangement: 1NO+1NC SK06 to SK12
SKH4
Mechanical Interlock Units
SZ1KRM
Reversing assembly and mechanical interlock SK06 to SK12
Reversing Connection Kit (wiring)
SZ1KRW1W
Reversing Connection Kit for main circuit SK06 to SK12
Main Circuit Surge Suppression Unit *2
SZ-ZM2
Built-in CR (3-phase motor, 200V, 0.1 to 2.2kw) SK06 to SK12
Standalone Installation Unit *2
(for Main Circuit Surge Suppression Unit)
SZ-ZMH
For Main Circuit Surge Suppression Unit SZ-ZM2
Coil Surge Suppression Units
(surge suppression only)
SZ1KZ1
Built-in varistor: 24 to 48V AC/DC SK06 to 12
SKH4
SZ1KZ2
Built-in varistor: 48 to 125V AC/DC
SZ1KZ3
Built-in varistor: 100 to 240V AC/DC
Coil Surge Suppression Units
(with Operation Indicator Lamps)
SZ1KZ4
Built-in varistor and LED: 24 to 48V AC/DC SK06 to SK12
SKH4
SZ1KZ5
Built-in varistor and LED: 48 to 125V AC/DC
Operation Indicator Units
SZ1KL1
Built-in LED: 12 to 24V AC/DC SK06 to SK12
SKH4
SZ1KL2
Built-in LED: 24 to 48V AC/DC
SZ1KL3
Built-in LED: 48 to 125V AC/DC
Thermal Overload Relay
Reset Releases
SZ-R1
Release length: 300mm TK12
SZ-R2
Release length: 500mm
SZ-R3
Release length: 700mm
Link Module
BZ0LRK12AA
Links to Manual Motor Starter SK06 to SK12
Reversing Connection Unit
(Insert)
SZ1KRW1M
Reversing Connection Unit (Insert) for main circuit SK06 to SK12
*1 These options cannot be used with 1.2W DC Magnetic Contactors and Starters from SK06 to SK12L and SKH4L Auxiliary Relays.
*2 Use the SZ-ZM2 Main Circuit Surge Suppression Unit together with the SZ-ZMH Standalone Installation Unit.
Mini-Contactors
SK Series
Optional unit
Optional unit