Katko IsoSafe side-operated polycarbonate isolators are designed for safe and reliable isolation in demanding indoor and outdoor applications. The durable polycarbonate enclosure offers excellent resistance to UV radiation and many chemicals.
The range features a padlockable side-operated handle, fully rated load break performance and self-extinguishing material with excellent insulation properties. Available in 2-, 3- and 4-pole versions, including 3-pole models with auxiliary contact, IsoSafe polycarbonate isolators combine safety, clarity and easy installation for professional electrical applications.
Technical data
Depth
56 mm
EMC
false
Enclosure
M1 (83 x 128 x 56 mm)
Enclosure type
Polycarbonate
ETIM Class
EC000216
E-number FI
3662687
GTIN
6419410372166
Height
128 mm
IP rating
IP67
Max. term. torque (Nm)
1.8
Mech. endurance (no. of oper.)
20000
new_badge
2026-02-05
Nom. values w/cable size (mm²)
4
Number of poles
4
Product type
KSM 425 M1
Rated breaking cap. ICN AC-23A 415V (A)
200
Rated fused short-ckt. impulse withstand volt. Uimp (kV)
8
Rated insulation volt. Ui (V)
800
Rated operational current AC-21A 415V (A)
25
Rated operational current AC-21A 500V (A)
25
Rated operational current AC-21A 690V (A)
25
Rated operational current AC-22A 415V (A)
25
Rated operational current AC-22A 500V (A)
25
Rated operational current AC-22A 690V (A)
25
Rated operational current AC-23A 415V (A)
25
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 415V (kW)
11
Rated short-ckt. making cap. Icm 415V (kA)
1.6
Rated short-time withstand current 1s Icw 415V (kA)
1.1
Rated therm. current Ithe (A)
25
Rated therm. current Ith (A)
25
Short product description
Isolating switch 4x25A IP67
Switch type
Load Break Switch
Technical name
4x25A 400V 11kW
Terminals bolt size (Cu mm²)
1,5..16
Volume
0.7168 l
Width
100 mm
Dimensional drawing
Logistical data
Package size 1
1
Package size 1 depth
56 mm
Package size 1 GTIN code
6419410372166
Package size 1 height
128 mm
Package size 1 volume
0.7168 l
Package size 1 width
100 mm
Package size 2
8
Package size 2 depth
445 mm
Package size 2 height
135 mm
Package size 2 volume
6.6083 l
Package size 2 width
110 mm
Sales unit
1
Downloadables
- Dimensional drawings media (0284084ae1ca9118854ea2130414ef543136c85f_IsoSafe__M1_KSM_Dim.jpg)
- STEP files (c76a6beb38297a9960e50fa7af34cdd9b28494e6_IsoSafe_M1.stp.zip)
- DWG files (7ede34e623a045edb40571a0eee99c0f24e53d50_IsoSafe_M1.dwg.zip)
- Installation manuals (bec592d73ba48e76cb7c87816ab248b57912adce_Ohje_118_KSM_2026.pdf)
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