NIB
Non-Incendive Barriers
interface
This module provides isolation for a
circuit on the load side of the module
to be rated as non-incendive, and
is to be used on digital inputs or
outputs. The DNIB allows the use
of non-rated wiring to end devices
in Class 1, Zone 2 / Division 2 areas,
subject to the allowances of the
Canadian Electrical Code.
Eliminates need for explosion proof
enclosures
Eliminates costly wiring
DIN rail mountable housing
MODEL
Type
Max Voltage Output
Max Amperage Output
Discrete Non-Incendive Barrier
Degree of Protection
Temperature Range
Nominal Input Voltage
Input Voltage Range
Maximum Input Voltage
Maximum Output Voltage
Nominal Input Current
Maximum Input Current
Nominal Output Current
Maximum Output Current
Wire Size
Width
Approvals
DNIB
Mechanical
Housing Material
Tempature Code
Electrical
WT-NIC-W904-35VDC-75mA
Discrete NIB
24-12 AWG
35 VDC
75 mA
12 mm
Part Number
Model Number
34.243.0008.0
WT-NIC-W904-35VDC-75mA
Self-extinguishing polyamide
IP20
-40oC to +85oC
T3C (160°C)
24 VDC
5 - 30 VDC
35 VDC
35 VDC
5 - 50 mA
75 mA
50 mA
75 mA
Std.
Pack
1
Part Number
Model Number
Std.
Pack
Part Number
Model Number
Std.
Pack
Part Number
Model Number
Std.
Pack
Wire Gauge
Internal Resistance
Installation
24 - 12 AWG
470 ohms
This device is designed to provide an
electrical barrier between control devices
and hazardous location devices. This is a
non-fused device, a failure may cause it to
fail in a shorted state.
Must be installed in a suitable enclosure.
Return line must be referenced to 0V,
the PLC input must have a low resistance
path the 0V. This is essential to the proper
operation of the barrier in overvoltage
situations. If a low impedance to 0V
cannot be guaranteed on the return path,
Wieland recommends the use of two
barriers (one per signal) and to connect
one of the return terminals on each barrier
directly to ground.
PLC input must have low
resistance to ground.
Wiring must be suitable for the
area. The input is not protected by
the barrier
Subject to change without notice
www.wieland-electric.ca