Ex solenoid interlock
Ex STM 515
Ex zone 1 and 21
High degree of protection IP66 / IP67
Corrosion-resistant aluminium enclosure
Wiring compartment
Spring-to-lock or power-to-lock principle
Actuator head can be repositioned by 4 x 90°
Versions with escape release and/or auxiliary release available
The actuator is not included in the delivery of the switches
1 additional cable gland M20x1.5 is included in delivery
Technical data
General technical data
Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-18, EN 60079-31, EN ISO 14119, EN ISO 13849-1
Enclosure
aluminium die-cast, corrosion-resistant, shockproof, powder-coated, passivated, anthracite grey, similar to RAL 7016
Cover
aluminium die-cast, corrosion-resistant, shockproof, powder-coated, passivated, signal yellow, similar to RAL 1003
Actuator head
thermoset, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Screws
stainless steel
Switch type
type 2
Coding level
low coding
Tightening torque
cover screws: max. 2.5 Nm
actuator head: max. 2.5 Nm
enclosure mounting screws: 8 Nm
switch inserts M3 screw connection terminals: min. 0.6 Nm
solenoid M3.5 screw connection terminals: min. 0.8 Nm
Degree of protection
IP66/IP67 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Mounting
4 x M6 cylinder head screw (e.g. DIN 912 / ISO 4762)
Mounting position
possible
Safety class
I
Switching system
slow action, positive break NC contacts A
Switching elements
1 NC/1 NO contact + 1 NC/1 NO contact or 2 NC + 1 NC/1 NO contact or 2 NC + 2 NC contacts
Switch insert
2 x Ex 95
Contact material
silver
Connection
screw connection terminals
Cable cross-section
solenoid: 0.2 … 1.5 mm2 (AWG 24 … 16)
switch inserts: 0.75 … 1.5 mm2 (AWG 18 … 16)
Clamping range
7 … 12 mm
Cable entry
2 x M20 x 1.5
Rated insulation voltage Ui
250 V
Rated impulse withstand voltage Uimp
4 kV
Conventional thermal current Ithe
6 A
Conditional short-circuit current
1000 A
Utilisation category
AC-15; DC-13
Rated operating current/voltage Ie/Ue
enabling/signalling contacts: 6 A/250 VAC; 0.25 A/230 VDC;
direct-current solenoid: 0.08 A / 24 VDC +10 %/–15 %
Short-circuit protection
6 A gG/gN fuse;
direct-current solenoid: 2 A (slow blow)
Power consumption
<2.5 W (continuous operation), max. 47 W (for 250 ms)
Locking force Fmax
5500 N
Locking force FZh
4000 N
Actuating speed V
≤ 0.3 m/s
Actuating force / Latching force
≥ 40 N (retraction and extension of actuator)
Operation cycles
max. 900/h
Mechanical life
1 million operations
Impact energy
max. 7 J
Ambient temperature
–20 °C … +55 °C
Degree of pollution
3
Ex marking
L II 2G Ex db eb mb IIC T4 Gb,
L II 2D Ex tb IIIC T100°C Db
Approvals
BVS 23 ATEX E 025 X
IECEx BVS 23.0013X
