Ex interface relay SR852, (isolating relay), 8-pin
Connections
1 - 8 to 11 - 18 Doubly-protected contacts for the all-pole discon‐
nection of the
active non-intrinsically-safe signal cables from and
to the analyzer device
9, 19, 10, 20 Control connections for isolating relay
29, 30 ProtectiveconductorPE
Ex p controller F870S
Connections 19, 20 Supply connection N
21, 22 Supply connection L
23, 24 Supply connection PE
28, 30 to 29, 31 Doubly-protected contacts for enabling line-volt‐
age-operated blocks such as isolating relays and Ex
power relays
SIPROCESS GA700
Connection 10 Data interface, communications interface (e.g.
Ethernet)
B.1.2 Technical specications
Purging unit consisting of: FS870S with SVP2
SR852
SR853
pressure regulator
Electrical data
Voltage 110 … 230 VAC ± 10%
Frequency 48 … 62 Hz
Power consumption 20 W
SR852 8 oating switching contacts max. 250V AC/ 3A
max. 30V DC/ 3A
Conductor cross-
section
With end sleeve 0.25 … 1.5mm
2
(23...15AWG)
Without end sleeve 0.2 … 2.5mm
2
(24...13AWG)
SR853 4 oating switching contacts Max. 420 VAC/ 16 A, 30A/4s, 80A/20ms
Max. 28 VDC/ 16 A
Conductor cross-
section
With end sleeve 0.25 … 4mm
2
(23...11AWG)
Without end sleeve 0.2 … 6mm
2
(24...10AWG)
Environmental conditions
Ambient temperature 0 … + 60°C (32...140°F)
Humidity 5...95%, no condensation
Ex px safety equipment
B.1Overview
SIPROCESS GA700 rack and wall mounted devices
Compact Operating Instructions, 06/2023, A5E35134047-AB 111