Motor protection relay ZW7-400

Eaton ZW7-400 Motor Protection Relay with transformer, 270-400A, 1N/O+1N/C.

Manufacturer part number (MPN)

ZW7-400

EAN / GTIN

4015080453291

Sales unit

pcs

Eaton catalogue number

045329

Depth

162.5 mm

Height

97 mm

Width

200.5 mm

Weight

0.639 kg

Certifications

CSA-C22.2 No. 14; UL 508; IEC/EN 60947; UL File No.: E29184; CE; CSA File No.: 012528; UL; VDE 0660; CSA; UL Category Control No.: NKCR; CSA Class No.: 3211-03; IEC/EN 60947-4-1

Catalog Notes

Rated 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 Pvid

7.5 W

Heat dissipation per pole, current-dependent Pvid

2.5 W

Rated operational current for specified heat dissipation (In)

400 A

Conventional thermal current Ith of auxiliary contacts (1-pole, open)

6 A

Rated operational current (Ie) at AC-15, 120 V

1.5 A

Rated operational current (Ie) at AC-15, 220 V, 230 V, 240 V

1.5 A

Rated operational current (Ie) at AC-15, 380 V, 400 V, 415 V

0.9 A

Rated operational current (Ie) at DC-13, 110 V

0.4 A

Rated operational current (Ie) at DC-13, 220 V, 230 V

0.2 A

Rated operational current (Ie) at DC-13, 24 V

0.9 A

Rated operational current (Ie) at DC-13, 60 V

0.75 A

Rated operational voltage (Ue) - max

690 V

Safe isolation

440 V AC, Between auxiliary contacts and main contacts, According to EN 61140; 240 V AC, Between auxiliary contacts, According to EN 61140; 440 V AC, Between main circuits, According to EN 61140

Switching capacity (auxiliary contacts, pilot duty)

R300, DC operated (UL/CSA); B600 at opposite polarity, AC operated (UL/CSA); B300 at opposite polarity, AC operated (UL/CSA)

Voltage rating - max

600 VAC

Features

Trip-free release; Test/off button; Reset pushbutton manual/auto; Protection with heavy starting duty

Ambient operating temperature - max

50 °C

Ambient operating temperature - min

-25 °C

Ambient operating temperature (enclosed) - max

40 °C

Ambient operating temperature (enclosed) - min

-25 °C

Class

Other

Climatic proofing

Damp heat, cyclic, to IEC 60068-2-30; Damp heat, constant, to IEC 60068-2-78

Degree of protection

IP00

Mounting method

Separate mounting; Separate positioning

Mounting position

As required

Opening diameter

27 mm

Overload release current setting - max

400 A

Overload release current setting - min

270 A

Overvoltage category

III

Pollution degree

3

Product category

ZW7 current transformer-operated overload relays

Protection

Finger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274)

Rated impulse withstand voltage (Uimp)

4000 V (auxiliary and control circuits); 8000 V AC

Shock resistance

10 g, Mechanical, Sinusoidal, Shock duration 10 ms

Suitable for

Branch circuits, (UL/CSA)

Temperature compensation

Continuous

Short-circuit protection

With overload relay in conjunction with a transformer as required for the contactor, Max. Fuse, Main conducting paths

Short-circuit protection rating

Max. 6 A gG/gL, Fuse, Auxiliary contacts

Screw size

M3.5, Terminal screw

Screwdriver size

2, 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)

2 x (0.75 - 2.5) mm²; 1 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 torque

1.2 Nm, Screw terminals, Control circuit cables

Number of auxiliary contacts as normally open contact

1

Number of auxiliary contacts as normally closed contact

1

Type of electrical connection of main circuit

Screw connection

Max. rated operation voltage Ue

690 V

Adjustable current range

270–400 A

Reset function input

No

Reset function automatic

Yes

Reset function push-button

Yes

Country of origin

Germany

HS Code

8536.30

• EAN 4015080453291
• SAP 1200563093
• Code 82903767