Page 254 - Wagp_InterfaceElectronic_Volume4_2015_US.pdf

855 Series
4 Split-Core Current Transformers

252

Short description: Features:
WAGO's compact split-core current transformers are ideal for retrofit applica- • Current ratios from
tions in existing systems. They are particularly suited for applications in which 60 A up to 1000 A (primary side) and
the current path may not be disrupted. The transformer's accuracy permits 1 A or 5 A (secondary side)
extremely precise current measurements. The split-core current transformers • No interruption of the measuring cable
are capable of supplying the specified rated power at the end of the secon- • Ideal for use in very confined spaces
dary cable. All transformers are supplied with color-coded cables. Two • Superfast mounting
UV-resistant cable ties for reliable and easy mounting are also included. • For use around insulated cables up to Ø 42 mm
• Compact and hinged
• Color-coded connecting cables up to 5 m

Technical Data Technical Data

Input: Environmental Requirements:
Rated continuous thermal current I cth 100 % Ambient operating temperature -10 °C … +55 °C
Rated short-time thermal current I th 60 x I pr / 1 s -10 °C … +40 °C (855-5xxx/1000-000)
Storage temperature -20 °C … +70 °C
Rated surge current I dyn 2.5 x I th
50 Hz … 60 Hz Relative humidity 5 % … 85 % (non-condensing)
Rated frequency f R
0.72/3/- kV Max. operating altitude 2000 m
Max. operating voltage V m
Connection: Safety and protection:
Conductor size 0.5 mm², fine-stranded (855-xxx1/…) Degree of protection IP20
1.5 mm², fine-stranded (855-xxx5/…) Insulation class E (120 °C)
Conductor identification brown = S1, blue = S2 (855-xxx1/…) Housing material PA 6.6
black = S1, red = S2 (855-xxx5/…) Flammability rating V2 (UL94)
Standards and approvals:
Conformity marking 1
Standards/Specifications EN 61869-2:2012