- KUR 316 1V RA2EX 2XM25MEX M16MEX
- KUR 316 1V RA2EX 2XM25MEX M16MEX
Developed for hazardous areas, Katko ATEX isolators provide safe and reliable isolation in explosive atmospheres. They are designed to meet strict ATEX requirements while maintaining ease of installation and dependable operation, with options available for Zone 21 and Zone 22 applications.
Suitable for use in demanding industrial environments, these isolators offer robust protection and long service life where safety cannot be compromised.
Product Number
E-number FI
Rated operational current AC-23A 415V (A)
Enclosure type
Enclosure
Mounted auxiliary contacts
Technical data
GTIN
6419410305904
Cable entries
2 x M25 (11,0-17,0 mm), metal EX; 1 x M16 (5,0-10,0 mm), metal EX
Depth
77 mm
EMC
false
Enclosure
RA2EX (120 x 160 x 77 mm)
Enclosure type
Stainless steel enclosure (AISI 316L)
ETIM Class
EC000522
EX
true
E-number FI
3602804
Height
160 mm
IP rating
IP66
Max. term. torque (Nm)
1.8
Mech. endurance (no. of oper.)
50000
Mounted auxiliary contacts
1NO/1NC
Net weight
0.81 kg
Nom. values w/cable size (mm²)
10
Number of poles
3
Product type
- KUR 316 1V RA2EX 2XM25MEX M16MEX
Rated breaking cap. ICN AC-23A 415V (A)
160
Rated breaking cap. ICN AC-23A 500V (A)
160
Rated breaking cap. ICN AC-23A 690V (A)
160
Rated fused short-ckt current back-up fuse opt 1 (A)
40
Rated fused short-ckt current peak value (kA)
6.1
Rated fused short-ckt current RMS Ik opt 1 (kA)
50
Rated fused short-ckt. impulse withstand volt. Uimp (kV)
8
Rated insulation volt. Ui (V)
800
Rated operational current AC-21A 415V (A)
40
Rated operational current AC-21A 500V (A)
40
Rated operational current AC-21A 690V (A)
40
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)
20
Rated operational current AC-23A 500V (A)
20
Rated operational current AC-23A 690V (A)
20
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 415V (kW)
7.5
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 500V (kW)
11
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 690V (kW)
15
Rated short-ckt. making cap. Icm 690V (kA)
2.5
Rated short-time withstand current 1s Icw 690V (kA)
1.7
Rated therm. current Ithe (A)
40
Rated therm. current Ith (A)
40
Switch type
Load Break Switch
Technical name
3x20A 400V ATEX II 3D
Terminals bolt size (Cu mm²)
1,5..16
Volume
1.4784 l
Width
120 mm
Dimensional drawing
Logistical data
Package size 1 depth
77 mm
Package size 1 GTIN code
6419410305904
Package size 1 height
160 mm
Package size 1 volume
1.4784 l
Package size 1 weight
0.81 kg
Package size 1 width
120 mm
Downloadables
- Dimensional drawings media (IsoSafe_RA2_Dim.png)
- Connection diagram media (KATKO_KU3P_1V_diagram.jpg)
- Brochures (Katko IsoSafe Catalogue - Safety Switches & Isolators EN)
- Brochures (Katko IsoSafe Tuoteluettelo - Turvakytkimet FI)
- Brochures (Katalog Wyrobów KATKO IsoSafe – Wyłączniki bezpieczeństwa i rozłączniki PL)
- STEP files (IsoSafe_RA2.zip)
- DWG files (IsoSafe_RA2_LK10.zip)
- Installation manuals (KATKO_IsoSafe_RA2_installation_manual_96.pdf)
Latest News & Insights
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September 02, 2024 -
Discontinuation of 3-pole EVA and VKA 80–160A Switches
June 23, 2025
