- KFD2-SOT3-EX1.LB isolated barrier
Description
The KFD2-SOT3-EX1.LB isolated barrier is a high-performance intrinsically safe switch amplifier engineered for reliable signal interfacing between hazardous and non-hazardous environments in industrial automation systems.Fundamentally, the KFD2-SOT3-EX1.LB isolated barrier is designed to transfer discrete (digital) signals—originating from field devices such as NAMUR sensors or dry contacts—located in explosive atmospheres (Zone 0/1/2) to control systems installed in safe areas, while maintaining strict energy limitation to prevent ignition hazards.
Technical Data
| Power dissipation |
≤ 1 W including maximum power dissipation in the output |
| Input |
| Connection side |
field side |
| Connection |
terminals 1+, 2+, 3- |
| Rated values |
acc. to EN 60947-5-6 (NAMUR), see manual for electrical data |
| Open circuit voltage/short-circuit current |
approx. 10 V DC / approx. 8 mA |
| Switching point/switching hysteresis |
1.2 ... 2.1 mA / approx. 0.2 mA |
| Line fault detection |
breakage I ≤ 0.1 mA , short-circuit I ≥ 6.5 mA |
| Pulse/Pause ratio |
min. 100 µs / min. 100 µs |
| Output |
| Connection side |
control side |
| Connection |
output I: terminals 7, 8 ; output II: terminals 8, 9 |
| Rated voltage |
30 V DC |
| Rated current |
100 mA , short-circuit protected |
| Response time |
≤ 200 µs |
| Signal level |
1-signal: (external voltage) - 3 V max. for 100 mA 0-signal: blocked output (off-state current ≤ 10 µA) |
| Output I |
signal ; Transistor |
| Output II |
signal or error message ; Transistor |
| Collective error message |
Power Rail |
| Transfer characteristics |
| Switching frequency |
≤ 5 kHz |
| Galvanic isolation |
| Input/Output |
reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Input/power supply |
reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Output/power supply |
basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
FAQ of KFD2-SOT3-EX1.LB
1. What functional role does the KFD2-SOT3-EX1.LB isolated barrier fulfill within intrinsic safety architectures?
The KFD2-SOT3-EX1.LB isolated barrier serves as a galvanic isolation interface designed to safely transfer signals from hazardous (Ex) areas to non-hazardous control systems. It ensures intrinsic safety by limiting energy transfer while maintaining signal fidelity.
2. How does the KFD2-SOT3-EX1.LB isolated barrier technically achieve galvanic isolation and signal integrity?
The KFD2-SOT3-EX1.LB isolated barrier employs transformer-based or opto-electronic isolation mechanisms to decouple input and output circuits. This architecture mitigates ground loops, suppresses noise interference, and guarantees high-precision signal transmission.
3. Why is the KFD2-SOT3-EX1.LB isolated barrier particularly suitable for hazardous area installations?
The KFD2-SOT3-EX1.LB isolated barrier is engineered in compliance with international explosion protection standards (such as ATEX and IECEx), making it suitable for Zone 0/1 applications. It restricts electrical energy to prevent ignition of explosive atmospheres.
4. What types of input/output signal configurations can the KFD2-SOT3-EX1.LB isolated barrier accommodate?
The KFD2-SOT3-EX1.LB isolated barrier is typically designed for switch/contact inputs or NAMUR sensors, converting these signals into standardized outputs compatible with PLC or DCS systems while preserving intrinsic safety parameters.
5. In what ways does the KFD2-SOT3-EX1.LB isolated barrier enhance system reliability and operational robustness?
The KFD2-SOT3-EX1.LB isolated barrier improves reliability through electrical isolation, transient protection, and diagnostic capabilities. It reduces susceptibility to electromagnetic disturbances and ensures stable operation in industrial environments.
Why Buy From MOORE?
| ★ 1 Year Warranty on most products |
| ★ Fast and convenient shipping |
| ★ Large inventory of over 20,000 items |
| ★ Great low prices on all conditions |
| ★ Extensive quality control and testing |
Inquiry now: miya@mvme.cn
Company Profile
MOORE specializes in sourcing and selling discontinued products. If you need assistance, we can
also help you find and purchase used items. Our team of experienced experts offers automation
solutions and technical support across various fields, including PLC, DCS, vibration monitoring
systems, steam turbine control systems, and gas generators. We guarantee factory-original products,
high quality, competitive pricing, and a large inventory.
As one of the largest distributors of automation control system modules and spare parts in China,
MOORE Automation Co., Ltd. is committed to partnering with you to secure orders. For our first
collaboration, we offer our best possible pricing. I am dedicated to helping
you win the order and will do everything I can to support you.
You May Need
| ABB |
BRC-100 P-HC-BRC-10000000 |
| Bently Nevada |
330851-02-000-060-10-00-CN |
| Bently Nevada |
330850-90-CN |
| Bently Nevada |
330850-90-00 |
| Bently Nevada |
330500-02-00 |
| ABB |
CI630 3BSE011000R1 |
| ABB |
RDCU-12C |
| VIBRO METER |
VM600 MPC4 200-510-071-113 |
| HONEYWELL |
8C-PAON01 51454357-175 |
| ABB |
PU513V2 3BSE013034R1 |
| ABB |
SDCS-IOB-22 3BSE005177R1 |
| KONGSBERG |
TC520 3BSE001449R1 |
| Bently Nevada |
330104-00-05-10-02-00 |
| Bently Nevada |
330104-00-05-05-02-CN |
| Bently Nevada |
330104-00-05-05-02-05 |
| Allen Bradley |
1794-IE8H |
| ABB |
IMDSI14 |
| ABB |
7944831D |
| Bently Nevada |
330703-000-080-10-02-00 |
| SCHNEIDER |
170MCI00702 |
| ABB |
CI854AK01 3BSE030220R1 |
Contact US
Ready to elevate your automation system? Contact us today for more information or to make a purchase:
What’s app:86-18020776792
Skpye:miyazheng520
Miya Zheng
Scan the QR code above to contact us
miya@mvme.cn (click) || 86-18020776792
Your message must be between 20-3,000 characters!
