Item no. 855-301/050-103

Plug-in current transformer; Primary rated current: 50 A; Secondary rated current: 1 A; Rated power: 1.25 VA; Accuracy class: 3

Short description:

These plug-in units (855 Series) are inductive, single-conductor current transformers. Due to the measurement principle used, these current transformers are exclusively designed for AC network applications.

Features:
  • Screwless CAGE CLAMP® connection technology
  • Several mounting options available
  • Vibration- and shock-resistant
  • High mechanical retention forces
  • High current-carrying capacity
  • Continuous overload of 120% the nominal primary current
  • Low-voltage current transformer for operating voltages up to max. 1.2 kV
  • For 690 V power networks
  • UL recognized components

Product details

Details
Technical Data
Intput – current transformer
Primary rated current 50 A
Rated continuous thermal current Icth 1.2 x IN
Rated short-time thermal current Ith 60 x IN / 1 s (max. 100 kA / 1 s)
Overcurrent limiting factor FS5 / FS10 (type dependent; see type plate inscription)
Rated frequency 50 … 60 Hz
Output – Current transformer
Secondary rated current 1 A
Rated power Sr 1.25 VA
Measurement error
Accuracy class 3
Safety and protection:
Highest voltage for equipment Um AC 1.2 kVrms
Test voltage AC 6 kV; 50 Hz; 1 min
Connection data
Connection technology CAGE CLAMP®
Solid conductor 0.08 … 4 mm² / 28 … 12 AWG
Fine-stranded conductor 0.08 … 4 mm² / 28 … 12 AWG
Strip length 9 … 10 mm / 0.35 … 0.39 inch
Geometrical Data
Width 60 mm / 2.362 inch
Height 80.9 mm / 3.185 inch
Depth 52 mm / 2.047 inch
Mechanical data
Mounting type Closed current transformer
Installation on mounting plate
Mounting on DIN-rail via DIN-rail adapter
Mounting on round cable
Material Data
Insulation class E
Weight 230 g
Environmental Requirements
Surrounding air temperature (operation) -5 … 50 °C
Surrounding air temperature (storage) -25 … 70 °C
Operating altitude (max.) 1000 m
Standards and specifications
Conformity marking CE
Standards/specifications EN 61869-1; EN 61869-2; UL: E356480
Commercial data
Packaging type BOX
Country of origin DE
GTIN 4050821614654
Customs tariff number 85043129900
Approvals / Certificates
UL-Approvals
Approval
Additional Approval Text
Certificate name
Language
Approval: UL
Underwriters Laboratories Inc.
Additional Approval Text C51.13
Certificate name: E356480
Compatible products
Installation Notes
2 Images
Conductor termination
Inserting a conductor – Operating tool actuation perpendicular to conductor entry.
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5 Images
Installation
Mounting on copper carrier rail
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