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Motor protection relay ZW7-90

Eaton · Switchgear & Protection · Overload Relays · Ireland · eaton.com
Part Number
ZW7-90  ·  HS 8536.30
Motor protection relay ZW7-90

Eaton ZW7-90 Motor Protection Relay with transformer, 60-90A, 1N/O+1N/C.

Technical Specifications

Manufacturer part number (MPN)ZW7-90
EAN / GTIN4015080026181
Sales unitpcs
Eaton catalogue number002618
Depth177.8 mm
Height114.3 mm
Width203.2 mm
Weight0.885 kg
CertificationsVDE 0660; UL; UL 508; CSA-C22.2 No. 14; IEC/EN 60947; UL Category Control No.: NKCR; CSA Class No.: 3211-03; IEC/EN 60947-4-1; CE; CSA File No.: 012528; UL File No.: E29184; CSA
Catalog NotesRated operational current: Switch-on and switch-off conditions based on DC-13, time constant as specified.
Number of auxiliary contacts (change-over contacts)0
Number of auxiliary contacts (normally closed contacts)1
Number of auxiliary contacts (normally open contacts)1
Number of contacts (normally closed contacts)1
Number of contacts (normally open contacts)1
Equipment heat dissipation, current-dependent Pvid6.3 W
Heat dissipation per pole, current-dependent Pvid2.1 W
Rated operational current for specified heat dissipation (In)90 A
Conventional thermal current Ith of auxiliary contacts (1-pole, open)6 A
Rated operational current (Ie) at AC-15, 120 V1.5 A
Rated operational current (Ie) at AC-15, 220 V, 230 V, 240 V1.5 A
Rated operational current (Ie) at AC-15, 380 V, 400 V, 415 V0.9 A
Rated operational current (Ie) at DC-13, 110 V0.4 A
Rated operational current (Ie) at DC-13, 220 V, 230 V0.2 A
Rated operational current (Ie) at DC-13, 24 V0.9 A
Rated operational current (Ie) at DC-13, 60 V0.75 A
Rated operational voltage (Ue) - max690 V
Safe isolation240 V AC, Between auxiliary contacts, According to EN 61140; 440 V AC, Between main circuits, According to EN 61140; 440 V AC, Between auxiliary contacts and main contacts, According to EN 61140
Switching capacity (auxiliary contacts, pilot duty)R300, DC operated (UL/CSA); B300 at opposite polarity, AC operated (UL/CSA); B600 at opposite polarity, AC operated (UL/CSA)
Voltage rating - max600 VAC
FeaturesTest/off button; Trip-free release; Protection with heavy starting duty; Reset pushbutton manual/auto
Ambient operating temperature - max50 °C
Ambient operating temperature - min-25 °C
Ambient operating temperature (enclosed) - max40 °C
Ambient operating temperature (enclosed) - min-25 °C
ClassOther
Climatic proofingDamp heat, constant, to IEC 60068-2-78; Damp heat, cyclic, to IEC 60068-2-30
Degree of protectionIP00
Mounting methodSeparate mounting; Separate positioning
Mounting positionAs required
Opening diameter27 mm
Overload release current setting - max90 A
Overload release current setting - min60 A
Overvoltage categoryIII
Pollution degree3
Product categoryZW7 current transformer-operated overload relays
ProtectionFinger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274)
Rated impulse withstand voltage (Uimp)8000 V AC; 4000 V (auxiliary and control circuits)
Shock resistance10 g, Mechanical, Sinusoidal, Shock duration 10 ms
Suitable forBranch circuits, (UL/CSA)
Temperature compensationContinuous
Short-circuit protectionWith overload relay in conjunction with a transformer as required for the contactor, Max. Fuse, Main conducting paths
Short-circuit protection ratingMax. 6 A gG/gL, Fuse, Auxiliary contacts
Screw sizeM3.5, Terminal screw
Screwdriver size2, Terminal screw, Pozidriv screwdriver; 1 x 6 mm, Terminal screw, Control circuit cables, Standard screwdriver
Stripping length (control circuit cable)8 mm
Terminal capacity (flexible with ferrule)1 x (0.75 - 2.5) mm²; 2 x (0.75 - 2.5) mm²
Terminal capacity (solid)1 x (0.75 - 4) mm²; 2 x (0.75 - 4) mm²
Terminal capacity (solid/stranded AWG)2 x (18 - 14)
Tightening torque1.2 Nm, Screw terminals, Control circuit cables
Number of auxiliary contacts as normally open contact1
Number of auxiliary contacts as normally closed contact1
Type of electrical connection of main circuitScrew connection
Max. rated operation voltage Ue690 V
Adjustable current range60–90 A
Reset function inputNo
Reset function automaticYes
Reset function push-buttonYes
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents