DRSL-LPO-1 DIN Rail Output Loop Powered Isolators w/ 1 or 2 Channel Models
DIN Rail 2-Wire Transmitter Isolators
Supported Applications
The Omega DRSL-LPO Series consists of DIN rail-mounted, loop-powered output isolators designed for current signal loops. These devices provide galvanic isolation and a 1:1 conversion of standard current signals intended for SCADA or PLC systems. The series eliminates ground loops while offering surge suppression and noise protection within industrial control environments.
Operating Conditions & Performance
The DRSL-LPO Series operates across an ambient temperature range of -25 to 70°C (-13 to 158°F) with a storage capability from -40 to 85°C (-40 to 185°F). Humidity tolerance is rated at 0 to 95% RH non-condensing. The modules feature an IP20 enclosure rating and are designed for installation in enclosures per Open Type Listed Process Control Equipment requirements.
Performance specifications include a response time of <5 ms (0 to 90%, 100 to 10%) with a cut-off frequency of 100 Hz. Absolute accuracy at 25°C is ≤±8 μA, and the signal-to-noise ratio exceeds 60 dB. The functional input range supports NAMUR NE43 compliance from 3.5 to 23 mA within an overall signal conversion span of 3.8 to 20.5 mA.
Configuration Options
The series is available in two channel configurations: the DRSL-LPO-1 (1-channel) and DRSL-LPO-2 (2-channel). Both models are loop-powered, drawing power from the host output current signal loop. The modules support an input transmitter supply of 3.5 to 32.5 V.
Key configurable attributes include:
• Housing and Mounting: Slim profile dimensions of 113 H x 6.1 W x 115 mm D (4.4 x 0.24 x 4.5") designed for DIN EN 60715 - 35 mm rails.
• Electrical Connections: Screw terminals accepting stranded wire sizes from 0.13 to 2.5 mm² (AWG 26-12) with a recommended torque of 0.5 Nm.
• Isolation and Safety: Double isolation between input, output channels, and supply; test voltage of 2.5 kVAC and working voltage of 300 VAC. Approvals include CE, UL US, RoHS, EN 61326-1 (EMC), EN 61010-1 (LVD/Safety), and EN 61140.
• Power Consumption: Internal consumption is approximately 50 mW per channel with a typical voltage drop of 2.5V from input to output.
Optional accessories include the RAIL-35-1 (35 mm DIN rail, 1 m length) and DRSL-MOD-STOP module stop for securing devices on the rail.
Key Product Differences
The primary distinction between models is channel count. The DRSL-LPO-1 provides a single isolated current loop path, utilizing terminals 3 and 4 for input (Tx +, -) and terminals 5 and 6 for output (4–20 mA +, -). The DRSL-LPO-2 doubles this capacity with two independent channels: Channel 1 uses Input Terminals 3/4 and Output Terminals 5/6; Channel 2 uses Input Terminals 1/2 and Output Terminals 7/8. Both models share identical performance specifications, environmental ratings, and physical dimensions.
| Accuracy | ±8 µA |
| Approvals | CE, UL, RoHS |
| Bandwidth | 100 Hz |
| Calibration Temperature, Max | 28 °C |
| Calibration Temperature, Min | 20 °C |
| Conversion Rate | 1:1 |
| Current Measurement Range | 4 to 20 mA |
| Electrical Output | 24 mA |
| EMC Immunity Note | Extended EMC Immunity NAMUR NE 21, A Criterion, Burst: <±1% of span |
| Enclosure Ratings | IP20 |
| Height | 113 mm |
| Input Range Note | Signal Range (Input to Output):3.8 to 20.5 mA;Signal Conversion: 1:1; Functional Range: 3.5 to 23 mA ;(NAMUR NE43 compliant);Available 2-Wire Transmitter (Tx) ;Supply: 3.5 to 32.5V |
| Input Type | Current |
| Installation | Pollution degree 2 and measurement/overvoltage category II |
| Isolation | Isolation Voltage (Test): 2.5 kVac ;Isolation Voltage (Working):300 Vac |
| Length | 115 mm |
| Mounting | DIN Rail 35 mm Standard, EN 60715 |
| Noise Calibration | >60 dB |
| Operating Temperature, Max | 70 °C |
| Operating Temperature, Min | -25 °C |
| Output Detail | Output Loop Current Limitation:24 mA typical Output Overload: 50 mA max |
| Output Signal | Current |
| Power Consumption | 50 mW |
| Relative Humidity | 0 to 95% RH (non-condensing) |
| Response Time | < 5 ms |
| Response Time Note | Response Time (0 to 90%, 100 to 10%): <5 ms |
| Screw Terminal Torque | 0.5 Nm |
| Series ID | DRSL-LPO-Srs-Loop-Pwr-Iso |
| Storage Temperature, Max | 85 °C |
| Storage Temperature, Min | -40 °C |
| Supply Power Type | DC |
| Supply Voltage | 6 to 35 Vdc |
| Temperature Coefficient | ≤±0.02 µA [(T-25°C) x Vsupply] |
| Temperature Coefficient Note | Temperature Coefficient (>25°C):≤±0.02 µA [(T-25°C) x Vsupply] Temperature Coefficient (<25°C):≤±0.07 µA [(T-25°C) x Vsupply] |
| Voltage Loss | Input to Output: 2.5 V |
| Weight | 70 g |
| Width | 6.1 mm |
| Wire Gauge | 26 to 12 AWG |
OMEGADRSL-MOD-STOP
Module stop (screwed onto DIN rail to support and hold mounted devices)
Call Today!
800-567-8686Normally ships in 2-3 weeks![RA Il 35 1 12980]()
OMEGARAIl-35-1
35 mm DIN rail, 1 m (3.3') length
Call Today!
800-567-8686Normally ships in 2-3 weeks
