Ex position switch
Ex 61 / ExM 61
Ex zone 1 and 21
Metal enclosure
Slow or snap action
With pre-wired cable
Attention: Please state required international approvals with your order!
Technical data
General technical data
Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure
aluminium die-cast, powder-coated
Cover
steel, powder-coated
Switch type
type 1
Coding level
no coding
Degree of protection
IP65 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Switch insert
Ex 14, ExM 14
Contact material
silver
Switching system
slow or snap action; slow action: positive break NC contacts A; positive break depends on the actuator used
Switching elements
ExM 61: change-over contact with single break, Form C
Ex 61: 1 NC/1 NO contact, type Zb
Connection
pre-wired cable H05VV-F
Cable cross-section
3 or 4 x 0.75 mm² (incl. conductor ferrules)
Cable length
3 m
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Conventional thermal current Ithe
Ex 61: T6: 6 A; T5: 3 A
ExM 61: 5 A
Rated operating current/voltage Ie/Ue
Ex 61: 6 A/250 VAC, 0.25 A/230 VDC
ExM 61: 5 A/250 VAC, 0.16 A/230 VDC
Utilisation category
AC-15; DC-13
Short-circuit protection
Ex 61: 6 A gG/gN fuse;
ExM 61: 5 A gG/gN fuse
Ambient temperature
Ex 61: T6: –20 °C … +65 °C, T5: –20 °C … +75 °C, +90 °C with max. 3 A
ExM 61: –20 °C … +60 °C
Mechanical life
> 1 million operations
Operation cycles
max. 1800/h
Repeat accuracy of switching points
± 0.1 mm
Contact opening
max. 2 x 4.5 mm
Impact energy
max. 7 J
Ex marking
Ex 61:
L II 2G Ex db IIC T6/T5 Gb,
L II 2D Ex tb IIIC T80 °C/T95 °C Db
ExM 61:
L II 2G Ex d IIC T6 Gb,
L II 2D Ex tb IIIC T80 °C Db IP65
Approvals
Ex 61:
PTB 03 ATEX 1070 X*
IECEx PTB 06.0098X*
d
ExM 61:
PTB 03 ATEX 1069 X*
*referring to the switch insert
