SNT 4M63K Safety Relay for Emergency Stop & Valve Monitoring
For use in emergency stop applications and for valve position
Monitoring
Base unit in accordance with EN 60204-1 and EN 954-1
Safety category 4 pursuant to EN 954-1
Stop category 0 pursuant to EN 60204-1
Manual or automatic start
Cross-circuit detection
Control loop for monitoring external contactors
3 enabling paths, N/O force guided
Antivalent and equivalent control
LED displays for operating voltage, channel 1 and channel 2
Enclosure width 22.5 mm
Supply current circuit
Nominal voltage U
N
:
24 VAC / DC or 230 VAC
Nominal frequency:
50 → 60 Hz
Operating voltage range:
0.85 → 1.1 x U
N
Control circuit
Response time t
A1
(S34):
20 → 40 ms
Response time t
A2
(S35):
200 → 600 ms
Fallback time t
R
(K1, K2):
Output circuit
Contact assignment:
3NO
Contact type:
Force guided
Nominal switching voltage U
n
:
230 Vac / 300 Vdc
Max. Continuous current I
n
per current path:
6A
Max. total current of all
current paths:
12 A (at 24 V) / 8 A (at 230 V)
Mechanical lifespan:
10 x 10
6
General data
Connection type:
Screw terminals
Protection rating enclosure / terminals:
IP40 / IP20
Dimensions (H x W x D):
96.5 x 22.5 x 114 mm
Weight:
210 g (DC version) /
250 g (AC version)
Ambient temperature:
-25 °C → +55 °C
Approvals
CE, BG, GS, UL, CSA
Standards
EN 954-1, EN 60204-1
