Product image

EX-ZQ 900-04-3D

  • Ex-Zone 22
  • Robust design
  • Metal enclosure
  • Position indicator
  • Release push button
  • Large wiring compartment
  • 3 cable entries M 20 x 1.5
  • External watertight collar
  • wire pull and breakage detection
  • Twisting of towing eye not possible
  • one-side operation / wire up to 75 m long
Ordering data
Product type description
EX-ZQ 900-04-3D
Article number (order number)
EAN (European Article Number)
eCl@ss number, Version 9.0
eCl@ss number, Version 11.0
ETIM number, version 6.0
Explosion protection
Explosion protection: regulations
EN 60079-31
IEC 60079-0
Explosion protection zones
Explosion protection category
Explosion protection designation
II 3D Ex tc IIIC T100°C Dc

Manufacturer declaration

ATEX Zone 22
General data
Product name
EX-ZQ 900
IEC/EN 60947-5-1
EN ISO 13850
IEC/EN 60947-5-5
Enclosure material
Zinc die-cast
Enclosure coating material
Material of the contacts, electrical
Material of the cover
Length of the wire, maximum
75 m
Gross weight
1,500 g
General data - Features
Number of safety contacts
Safety appraisal
ISO 13849-1
Mission Time
20 Year(s)
Safety appraisal - Safety outputs
B10d Normally-closed contact (NC)
100,000 Operations
Mechanical data
Mechanical life, typical
1,000,000 Operations
Actuating force, maximum
200 N
Actuating travel
400 mm
Mechanical data - Connection technique
Terminal Connector
Screw connection
Cable cross-section of the cable glands, minimum
7 mm
Cable cross-section of the cable glands, maximum
12 mm
Cable section, minimum
0.75 mm²
Cable section, maximum
2.5 mm²
Note (Cable section)
All indications about the cable section are including the conductor ferrules.
Mechanical data - Dimensions
Length of sensor
57 mm
Width of sensor
71.5 mm
Height of the Sensor, minimum
221 mm
Height of the Sensor, maximum
237 mm
Ambient conditions
Protection class
IP 67 to IEC/EN 60529
Ambient temperature, minimum
-20 °C
Ambient temperature, maximum
+55 °C
Relative humidity, minimum
30 %
Relative humidity, maximum
95 %
Ambient conditions - Insulation value
Rated impulse withstand voltage Uimp
6 kV
Electrical data
Thermal test current
4 A
Utilisation category AC-15
230 VAC
Utilisation category AC-15
4 A
Utilisation category DC-13
24 VDC
Utilisation category DC-13
1 A
Switching element
NO contact, NC contact
Switching principle
Snap switch element
Scope of delivery
Included in delivery
Including Ex-certified screwed cable gland and screw plug
Note (General)
For lengths of over 10 m, intermediate wire supports must be installed every 3 to 5 m.
Recommended cable lengths for pull-wire Emergency-Stop switches in relation to the range of ambient temperature.
As the thimbles are subject to deformation in case of wire pull, the wire should be pulled several times after fitting. After that, the wire must be re-tensioned using the eyebolt or the tensioner.
Product image

Information on diagram
Some descriptionMonitoring the interlock
to EN ISO 14119
Some descriptionPositive break NC contact
Some descriptionActuated
Some descriptionnot actuated
Some descriptionNormally-open contact
Some descriptionNormally-closed contact

K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, D-42279 Wuppertal
The details and data referred to have been carefully checked. Images may diverge from original. Further technical data can be found in the manual. Technical amendments and errors possible.
Generated on 22/04/2021 14:01:24