Item no. 857-420

Isolation amplifier; Current input signal; Current and voltage output signal; Supply voltage: 24 VDC; 6 mm module width; 2,50 mm²

Stock item

Short description:

This isolation amplifier provides the power required for 2- or 3-wire field transmitters and electrically isolates analog signals.

Features:

  • Power supply to SMART transmitters
  • Calibrated measurement range switching
  • Safe 3-way isolation with 2.5 kV test voltage per EN 61140

Product details

Details
Technical Data
Configuration
Configuration options DIP switch
Input
Input signal type Current
Input signal (current) 0 … 20 mA; 4 … 20 mA
Input resistance (current input) ≤ 50 Ω
Sensor supply Uv = 18 V; 30 mA
Input current (max.) 50 mA
Output – Analog
Output signal type Current
Voltage
Output signal (voltage) 0 … 5 V; 1 … 5 V; 0 … 10 V; 2 … 10 V
Output signal (current) 0 … 20 mA; 4 … 20 mA (calibrated switching)
Load impedance (voltage output) ≥ 2 kΩ
Load impedance (current output) ≤ 600 Ω
Offset ≤ 20 µA
Residual ripple ≤ 10 mV (rms)
Signal processing
Limit frequency 100 Hz
Step response (typ.) 3.5 ms
Measurement error
Transmission error (typ.) ≤ 0.1 % of upper-range value
Temperature coefficient ≤ 0.01 %/K
Power supply
Power supply type 24 VDC
Nominal supply voltage US DC 24 V
Supply voltage range ±30 %
Power consumption at nominal supply voltage ≤ 45 mA
Safety and protection:
Test voltage (input/output/supply) AC 2.5 kV; 50 Hz; 1 min
Protection type IP20
Connection data
Connection technology Push-in CAGE CLAMP®
Solid conductor 0.08 … 2.5 mm² / 28 … 14 AWG
Fine-stranded conductor 0.34 … 2.5 mm² / 22 … 14 AWG
Strip length 9 … 10 mm / 0.35 … 0.39 inch
Geometrical Data
Width 6 mm / 0.236 inch
Height from upper-edge of DIN-rail 97.8 mm / 3.85 inch
Depth 94 mm / 3.701 inch
Mechanical data
Mounting type DIN-35 rail
Material Data
Fire load 0.585 MJ
Weight 37 g
Environmental Requirements
Surrounding air temperature (operation) -25 … 70 °C
Surrounding air temperature (storage) -40 … 85 °C
Standards and specifications
Conformity marking CE
Commercial data
Product Group 6 (Interface Electronics)
Packaging type bag
Country of origin DE
GTIN 4045454471330
Customs tariff number 85437090300
Approvals / Certificates
Ex-Approvals
Approval
Additional Approval Text
Certificate name
Language
Approval: UL
UL International Germany GmbH (HAZARDOUS LOCATIONS)
Additional Approval Text ANSI/ISA 12.12.01
Certificate name: E198726 Sec.4
Ship Approvals
Approval
Additional Approval Text
Certificate name
Language
Approval: DNV GL
Det Norske Veritas, Germanischer Lloyd
Additional Approval Text -
Certificate name: TAA00001D1
UL-Approvals
Approval
Additional Approval Text
Certificate name
Language
Approval: UL
UL International Netherlands B.V. (ORDINARY LOCATIONS)
Additional Approval Text UL 508
Certificate name: E175199 Sec.4
Downloads
CAD/CAE-Data
CAD data
2D/3D Models 857-420
CAE data
EPLAN Data Portal 857-420
WSCAD Universe 857-420
ZUKEN Portal 857-420
Compatible products
Installation Notes
1 Image
Configuring

Configuration via DIP switches

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1 Image
Commoning

Commoning, not discrete wiring – same outline allows the use of a single in-line, push-in jumper

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