Ex belt alignment switch
Ex 98 SR-3G/D
Ex zone 2 and 22
Metal enclosure
2 contacts
Design to EN 50041
Wiring compartment
Adjustable-length stainless steel rod lever with nylon roller
Belt alignment lever adjustable in 13° steps using a self-locking mechanism
For light- and medium-heavy applications
Technical data
General technical data
Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-31, EN ISO 13849-1
Enclosure
aluminium die-cast, corrosion-resistant, powder-coated, anthracite grey, similar to RAL 7016
Cover
aluminium die-cast, powder-coated, signal yellow, similar to RAL 1003
Sealing
silicone
Degree of protection
IP67 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Contact material
silver
Switching system
slow action
Switching elements
1 NC/1 NO contact, type Zb
Connection
screw connection terminals
Cable cross-section
min. 0.5 mm² (AWG 20), max. 1.5 mm² (AWG 16), incl. conductor ferrules
Cable entry
1 x M20 x 1.5 (incl. 1 cable gland)
Clamping range
7 … 13 mm
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Conventional thermal current Ithe
6 A
Rated operating current/voltage Ie/Ue
6 A/250 VAC; 0.25 A/230 VDC
Utilisation category
AC-15; DC-13
Short-circuit protection
6 A gG/gN fuse
Ambient temperature
T6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life
> 1 million operations
Operation cycles
max. 1800/h
Repeat accuracy of switching points
± 0.1 mm
Impact energy
max. 7 J
Ex marking
L II 3G Ex dc ec IIC T6/T5 Gc,
L II 3D Ex tc IIIC T80 °C/T95 °C Dc
