The Endress+Hauser RN221N-B1 is an active barrier with an integrated transmitter power supply designed for the safe separation of 4 to 20 mA current signal circuits. This device provides galvanic isolation between the input and output circuits, making it ideal for removing large loop circuits and powering 2-wire transmitters in process control environments. Equipped with an intrinsically safe input option for hazardous locations, it supports bi-directional HART communication to transmit status information and sensor configurations smoothly from the field to control instrumentation. The Endress+Hauser RN221N-B1 features a compact 22.5 mm housing suited for standard top hat DIN rail mounting, ensuring efficient use of cabinet space across various industrial automation systems.
| Order Code | Product Structure / Component |
|---|---|
| RN221N-B1 | Active barrier RN221N, transmitter power supply, 4-20mA, 1:1 transmission, bi-directional HART communication, SIL2, housing 22.5mm, top hat DIN rail 35mm, IP20. Approval: ATEX II (1)GD (EEx ia) IIC. Power supply; diagnosis: 20-250 VDC/AC; none. |
| Order Code | Accessory |
|---|---|
| 51002468 | Protective housing IP66 for field mounting |
| 51004148 | Adhesive label, printed (max. 2x16 chars) |
| 51002393 | Metal tag for tag number |
| Specification | Value |
|---|---|
| Manufacturer | Endress+Hauser |
| Number of Inputs | 1 |
| Input Supply Voltage | 16.7 V +/- 0.2 V (for I = 20 mA) |
| Open Circuit Voltage (Input) | 26 V +/- 5% |
| Short Circuit Current (Input) | <= 40 mA |
| Internal Resistance (Input) | 328 Ohm |
| Overrange (Input/Output) | 10% |
| Number of Outputs | 1 |
| Open Circuit Voltage (Output) | 24 V +/- 10% |
| Load (Impedance) | 10 to 700 Ohm (without communication resistance) |
| Galvanic Isolation | To all other current circuits |
| Supply Voltage | 20 to 250 V DC/AC, 50/60 Hz |
| Power Consumption | Max. 2.5 W (without HART diagnosis) |
| Electrical Safety | To IEC 61010-1, protection class I, overvoltage category II, pollution degree 2, overload protection <= 10 A, fuse 315 mA T |
| Linearity | <= 0.15% |
| Load Influence | <= 0.1% |
| Ambient Temperature Influence | <= 0.1% in range 0 degC to 50 degC; <= 0.2%/10K in range -20 degC to 0 degC |
| Ambient Temperature Limits | -20 to +50 degC (-4 to 122 F) |
| Storage Temperature | -20 to +70 degC (-4 to 158 F) |
| Operating Height | To IEC 61010-1: < 2000 m (6561 ft) above sea level |
| Climate Class | To IEC 60654-1 Class B2 |
| Degree of Protection | IP 20 |
| Electromagnetic Compatibility (EMC) | Immunity to IEC 61326, Class A (Industrial environment) |
| Weight | Approx. 150 g (1.1 lb) |
| Housing Material | Plastic PC/ABS, UL 940 |
| Terminals | Keyed plug-on screw terminals, core size 2.5 mm2 solid, or strands with ferrules |
Global Express Shipping
Returns & Warranty
Manufacturer: Endress+Hauser
Product No.: RN221N-B1
Country of origin:Germany
Product Type: Active Barrier
Payment: T/T, Western Union
Weight: 499g
Dimensions: 22.5 mm x 110 mm x 112 mm (W x H x D)
Shipping port: Xiamen
Warranty: 12 months
The Endress+Hauser RN221N-B1 is an active barrier with an integrated transmitter power supply designed for the safe separation of 4 to 20 mA current signal circuits. This device provides galvanic isolation between the input and output circuits, making it ideal for removing large loop circuits and powering 2-wire transmitters in process control environments. Equipped with an intrinsically safe input option for hazardous locations, it supports bi-directional HART communication to transmit status information and sensor configurations smoothly from the field to control instrumentation. The Endress+Hauser RN221N-B1 features a compact 22.5 mm housing suited for standard top hat DIN rail mounting, ensuring efficient use of cabinet space across various industrial automation systems.
| Order Code | Product Structure / Component |
|---|---|
| RN221N-B1 | Active barrier RN221N, transmitter power supply, 4-20mA, 1:1 transmission, bi-directional HART communication, SIL2, housing 22.5mm, top hat DIN rail 35mm, IP20. Approval: ATEX II (1)GD (EEx ia) IIC. Power supply; diagnosis: 20-250 VDC/AC; none. |
| Order Code | Accessory |
|---|---|
| 51002468 | Protective housing IP66 for field mounting |
| 51004148 | Adhesive label, printed (max. 2x16 chars) |
| 51002393 | Metal tag for tag number |
| Specification | Value |
|---|---|
| Manufacturer | Endress+Hauser |
| Number of Inputs | 1 |
| Input Supply Voltage | 16.7 V +/- 0.2 V (for I = 20 mA) |
| Open Circuit Voltage (Input) | 26 V +/- 5% |
| Short Circuit Current (Input) | <= 40 mA |
| Internal Resistance (Input) | 328 Ohm |
| Overrange (Input/Output) | 10% |
| Number of Outputs | 1 |
| Open Circuit Voltage (Output) | 24 V +/- 10% |
| Load (Impedance) | 10 to 700 Ohm (without communication resistance) |
| Galvanic Isolation | To all other current circuits |
| Supply Voltage | 20 to 250 V DC/AC, 50/60 Hz |
| Power Consumption | Max. 2.5 W (without HART diagnosis) |
| Electrical Safety | To IEC 61010-1, protection class I, overvoltage category II, pollution degree 2, overload protection <= 10 A, fuse 315 mA T |
| Linearity | <= 0.15% |
| Load Influence | <= 0.1% |
| Ambient Temperature Influence | <= 0.1% in range 0 degC to 50 degC; <= 0.2%/10K in range -20 degC to 0 degC |
| Ambient Temperature Limits | -20 to +50 degC (-4 to 122 F) |
| Storage Temperature | -20 to +70 degC (-4 to 158 F) |
| Operating Height | To IEC 61010-1: < 2000 m (6561 ft) above sea level |
| Climate Class | To IEC 60654-1 Class B2 |
| Degree of Protection | IP 20 |
| Electromagnetic Compatibility (EMC) | Immunity to IEC 61326, Class A (Industrial environment) |
| Weight | Approx. 150 g (1.1 lb) |
| Housing Material | Plastic PC/ABS, UL 940 |
| Terminals | Keyed plug-on screw terminals, core size 2.5 mm2 solid, or strands with ferrules |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
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