Pepperl+Fuchs kfd2 sr2 ex1 w Switch Amplifier Isolated Safety Barrier
Product Details:
Manufacturer : Pepperl + Fuchs
Product No. : kfd2 sr2 ex1 w
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Reliable Industrial Component Sourcing for Enterprises
This industrial automation component is supplied for enterprise procurement .Made-to-order and forward delivery are supported, with pricing quoted per inquiry.
To reduce sourcing risk, each order is handled individually with support for model confirmation, condition clarification, and lead time estimation before order placement. Clear quotation terms and consistent communication are provided to help partners manage expectations and complete transactions with confidence. Additional verification or clarification is available when required, supporting professional procurement and long-term cooperation.
The Pepperl+Fuchs KFD2-SR2-EX1.W is a compact DIN rail-mounted isolated switch amplifier designed for intrinsic safety signal transmission between hazardous explosive zones and safe control cabinets. Optimized for NAMUR proximity sensors and mechanical dry contact inputs, this KFD2 SR2 EX1 W barrier delivers galvanic isolation, real-time line fault monitoring, and reversible relay output operation, complying with IEC 61508 SIL2 functional safety standards.
Detail:
| Classification Group |
Attribute |
Standardized Parameter |
| Mechanical Dimensions |
Overall Size (W × H × D) |
20 mm × 119 mm × 115 mm |
| Mechanical Mounting |
Rail Standard |
35 mm DIN rail (EN 60715) |
| Mechanical Housing |
Protection Class |
IP20 (indoor cabinet use only) |
| Mechanical Weight |
Net Mass |
Approx. 150 g |
| Mechanical Operation |
Configuration Control |
3-position DIP switches (S1, S2, S3) |
| Mechanical Indication |
Status Feedback |
Power LED, Signal LED, Fault LED |
| Environmental Operating |
Ambient Temperature Range |
-20 °C ~ +60 °C |
| Environmental Storage |
Storage Temperature Range |
-40 °C ~ +70 °C |
| EMC Compliance |
Electromagnetic Standards |
NE 21:2017, EN 61326-3-1, EN IEC 61326-3-2 |
| Functional Safety |
SIL Rating |
SIL 2 (IEC 61508 Low/High Demand Mode) |
| Functional Safety |
SFF / PFH |
75% SFF; PFH = 3.77 × 10⁻⁸ 1/h |
| Explosion Hazard Certification |
ATEX Certificate |
PTB 00 ATEX 2080 |
| Explosion Hazard Marking |
Zone Classification |
II (1)G [Ex ia Ga] IIB |
| Global Certifications |
General Approvals |
CE, IECEx, SIL2 |
| Parameter Category |
Specification Item |
Exact Technical Value |
| Supply Power |
Rated Supply Voltage |
19 V DC ~ 30 V DC (nominal 24 V DC) |
| Supply Power |
Max Ripple Tolerance |
≤ 10% |
| Supply Power |
Rated Operating Current |
≤ 35 mA |
| Supply Power |
Max Power Dissipation |
≤ 0.7 W |
| Supply Power |
Power Connection Method |
DIN power rail / Terminals 14+, 15- |
| Field Input (Hazardous Side) |
Standard Compliance |
EN 60947-5-6 NAMUR |
| Field Input |
Open Circuit Voltage |
Approx. 8 V DC |
| Field Input |
Short-Circuit Current |
Approx. 8 mA |
| Field Input |
Switching Current Range |
1.2 mA ~ 2.1 mA |
| Field Input |
Switch Hysteresis |
Approx. 0.2 mA |
| Field Input |
Open Wire Fault Threshold |
≤ 0.1 mA |
| Field Input |
Short-Circuit Fault Threshold |
> 6 mA |
| Field Input Terminal Labels |
Signal Terminals |
1+, 2+, 3- |
| Relay Output (Safe Side) |
Output Contact Type |
Form C changeover relay |
| Relay Output |
AC Contact Load |
250 V AC / 2 A (cosφ > 0.75) |
| Relay Output |
DC Resistive Load |
40 V DC / 2 A |
| Relay Output |
Minimum Switching Current |
2 mA @ 24 V DC |
| Relay Output Response Time |
Pull-in / Drop-out Delay |
≤ 20 ms each |
| Isolation Performance |
Isolation Voltage (Input/Output/Supply) |
300 V eff basic isolation (IEC 61010-1) |
Brand
Pepperl+Fuchs Automation is our world. Perfect application solutions are our goal.
In 1945, against the backdrop of a war - torn world, Walter Pepperl and Ludwig Fuchs, driven by a strong sense of inventiveness, entrepreneurial foresight, and a deep - seated belief in self - reliance, established a humble radio workshop in Mannheim, Germany.
Their journey was filled with hands - on exploration. As they worked on various radio - related projects, the experiences they amassed became the fertile ground for new and innovative concepts. They took great pleasure in delving into the needs of their customers, constantly striving to develop products that could meet and exceed expectations.
Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, E+H, MTL, AB, Pepperl+Fuchs, YOKOGAWA, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, IFM etc. If you have any request, please do not hesitate to contact us.
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FAQ of Achievers
Q:Are the Products Genuine OEM Units?
A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.
Q:How will you arrange shipment?
A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.
Q:What is the warranty of goods?
A: One-year Warranty.
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