11384850.09 EN/DE 02/2019
WIKA Operating instructions / Betriebsanleitung WUC-1x
47
Hazardous (classified) location
Non-Hazardous location
Non-Incendive installation
Class I, Division 2, Groups A, B, C and D
Class I, Zone 2, Groups IIC
(Note 3)
Series WUC-1X
U+/S+
Non-Incendive transmitter U-/S-
S+
Control equipment
(Note 4), (Note5)
red
black
brown
2-wire system
wire
coding
color
U+/S+
red
supply - U-/S-
black
2-wire system
wire
coding
color
U+
red
supply - U-/S-
black
S+
brown
Non-Incendive parameters:
V
max
= DC 10 ... 30 V, I
max
= 30 mA (Note 2)
Ci = 11 nF (+0.3 nF/m with cable), Li = 10
µ
H (+2
µ
H/m with cable)
Notes
1. The non-incendive field wiring concept allows the interconnection of two devices with non-incendive parameters not
specifically examined in combination as a system when: Uo or Voc ≤ V
max
, Ca or Co ≥ Ci + C
cable
, La or Lo ≥ Li + L
cable,
Po ≤ Pi
2. For this current controlled circuit, the parameter I
max
is not required to be aligned with the parameter I
sc
or I
t
of
non-incendive field wiring apparatus.
3. Installation shall be in accordance with the National Electrical Code
®
(ANSI/NFPA70) Sections 504 and 505.
4. The configuration of Control Equipment must be under non-incendive field wiring concept and FM Approved.
5. Control Equipment manufacturer´s installation drawing must be followed when installing this equipment.
6. No revision to this drawing without prior approval by FM.
14. Control drawing (FM)
DE
11374595.01
