Specifications
Parameter Category Specification for ANB10D-415/CU2N
Model Number ANB10D-415/CU2N
Product Type Intrinsic Safety Barrier (Dual Channel)
Mounting Standard 35mm DIN rail mounting.
Number of Channels 2 (Dual Channel). The D in the model number often denotes a dual-channel barrier.
Approved Safety Standard FM / cULus (U.S. and Canada) for Class I, Division 2 hazardous areas. The CU2N suffix strongly indicates this certification. It may also comply with IECEx and ATEX standards.
Hazardous Area Rating The connected field device is approved for use in:**
• Class I, Division 1, Groups A, B, C, D
• Class II, Division 1, Groups E, F, G
• Class III, Division 1
[Note: The barrier itself is mounted in the safe area]
Safe Area Parameters • Supply Voltage (Ui): 250V AC/DC max (from the control system side)
• Supply Current (Ii): Typically limited by the barrier's design.
Hazardous Area Parameters • Maximum Output Voltage (Uo): ~15 V DC (estimated based on 415 code)
• Maximum Output Current (Io): ~150 mA (estimated based on 415 code)
• Maximum Output Power (Po): ~1.5 W (estimated based on 415 code)
• Maximum External Capacitance (Co): < 1.0 µF
• Maximum External Inductance (Lo): < 10 mH
These parameters define the maximum allowed capacitance and inductance for the field device and its wiring.
Field Device Compatibility Designed to protect 2-wire 4-20mA transmitters (e.g., pressure, temperature, flow) or digital input (DI) devices like mechanical switches, proximity switches, or solenoid valves.
Construction • Type: Passive Barrier. Uses a combination of current-limiting resistors and voltage-limiting Zener diodes to provide protection. Requires a dedicated, isolated earth ground for the grounding bar for proper operation.
• Terminals: Screw terminals for easy wiring.
Operating Temperature -40°C to +85°C (-40°F to +185°F)
Certifications cULus Listed (UL 913), likely also ATEX and IECEx certified. The CE mark is also present.
Key Features and Applications
Hazardous Area Protection: The core function is to prevent ignition in hazardous areas by limiting energy, enabling the safe use of electrical instruments.

Dual-Channel Design: Saves space in the control panel by providing protection for two field devices with a single module.

Passive Design: Highly reliable as it contains no active electronic components that can fail.

System Compatibility: Works seamlessly with Yokogawa control systems (like CENTUM VP) and other manufacturers' PLCs/DCS.

Global Certifications: Meets international safety standards, allowing for use in projects worldwide.

Primary Applications:

Used in Oil & Gas platforms, refineries, and pipelines.

Chemical and Pharmaceutical plants.

Paint and Coating manufacturing facilities.

Grain Silos and any other location where combustible materials are present.