Electrical connection
NAR300 system for high temperature
36
Hauser
6.3
NRR261-3/5 wiring
6
GND
4
5
5
1
2
3
1
6
g
f
h
H-
H+
j
i
L
5
N.C
COM
N.O
N.C
COM
N.O
N.C1
COM1
N.O1
2
7
6
8
90 - 250V
50/50Hz
L1
GND
N
L
ARS
GND1
N1
ARS
ARS
FG
H-
H+
TB1
TB2
FRAME GUARD PROBE
a
b
c
d
e
1
3, 4
A
B
C
B
C
A0039909
23
Wiring of Ex d [ia] transmitter NRR261-3
A
Float sensor NAR300-x6xxxx (sensor I/F Ex box is also included in the code)
B
Sensor I/F Ex box
C
Ex d [ia] transmitter NRR261 (separate type)
a
Green/Thread (M3) (see 1 below)
b
Output to NRR261-3xx/Thread (M3)
c
Yellow/Thread (M3)
d
Black/Thread (M3)
e
White/Thread (M3)
f
Blue 2/Thread (M4) (connected at the time of shipping)
g
Blue 3/Thread (M4) (connected at the time of shipping)
h
Blue 4/Thread (M4) (connected at the time of shipping) (TIIS specification only)
i
Input from sensor I/F Ex box/Thread (M4)
j
Class A grounding connection terminal (TIIS specification only)/Thread (M4)
1
Ex [ia]-dedicated connection cable used (6 to 30 m (19.69 to 98.43 ft): Attached to the product depending on
the option code)
2
Sensor I/F Ex box and NRR261 cable (must be prepared by the customer)
3
Power supply: AC/DC
4
Alarm output: Alarm/PLC/DCS, etc.
5
Ex d terminal
