Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
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EX-AZ 3350-03ZK-U90-3D
• Metal enclosure
• Actuating head rotated by 90°
• Latching handle
• Long life
• Centring device available
• 40,5 mm x 114 mm x 38 mm
• SZ 415 lockout tag to prevent unintended closing
• High level of contact reliability with low voltages and currents
• 1 Cable entry M 20 x 1.5
• Ex-certified screwed cable gland
• Ex certified

Ordering details
Product type descriptionEX-AZ 3350-03ZK-U90-3D - Ordering suffix
Article numberEX-AZ 3350-03ZK-U90
EAN Code
To order, first choose the desired safety switch and then the door handle system
Approval EEX
StandardsEN ISO 13849-1
B10d Normally-closed contact (NC)2.000.000
Mission time20 Years
Global Properties
Permanent lightEX-AZ 3350
StandardsEx tD A22 IP67 T90°°C X, EN 60947-5-1, EN 61241-1, BG-GS-ET-15
Compliance with the Directives (Y/N) Yes
- Material of the housingslight alloy die-casting
- Material of the contactsSilver
Housing coatingpainted
Recommended combinationsAZ 3350-STS30-02, AZ 3350-STS30-04, AZ 3350-STS30-05, AZ 3350-STS30-07
Mechanical data
Design of electrical connectionScrew connection
Cable cross-section of the cable glands
- Min. Cable cross-section of the cable glandsØ 6
- Max. Cable cross-section of the cable glandsØ 12
Cable section
- Min. Cable section0,75
- Max. Cable section2.5
Mechanical life1.000.000 operations
noticeAll indications about the cable section are including the conductor ferrules.
higher Latching force (Y/N)No
Shearing force15.000
Positive break force5 N for each NC contact fitted
positive break travel10.7
Door hingeleft
Max. Actuating speed1
Ambient conditions
Ambient temperature
- Min. environmental temperature−10
- Max. environmental temperature+60
Protection classIP67 to IEC/EN 60529
Electrical data
Design of control elementOpener (NC)
Switching principleCreep circuit element
Number of auxiliary contacts0
Number of safety contacts3
Rated impulse withstand voltage Uimp4 kV
Rated insulation voltage Ui250 V
Thermal test current Ithe10 A
Utilisation categoryAC-15: 230 V / 4 A, DC-13: 24 V / 4 A
Max. fuse rating6 A gG D-fuse
Explosion protection categories for gasesNone
Explosion protection Zones for gasesNone
Explosion protected category for dustsATEX dust ex-protection, Cat. 3
Explosion protection Zones for dusts22
Dimensions of the sensor
- Width of sensor40.5
- Height of sensor114
- Length of sensor38
Included in delivery
Including Ex-certified screwed cable gland and screw plug
Mounting plate for safety switch
Actuator incl. mounting plate
emergency handle
KeywordsEx, EEx, ATEX, Ex AZ 3350, Ex AZ 3350 AZ 3350 Ex, AZ3350 ex, AZ3350ex, ATEX AZ3350

Note Diagram
  positive break NC contact
  no active
  Normally-open contact
  Normally-closed contact
Ordering suffix
The applicable ordering suffix is added at the end of the part number of the safety switch.
Order example: EX-AZ 3350-03ZK-U90-3D-1637
...-1637 0,3 µm gold-plated contacts

K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, D-42279 Wuppertal
The data and values have been checked throroughly. Technical modifications and errors excepted.
Generiert am 19.09.2019 - 17:19:59h Kasbase 3.3.0.F.64I