Motor Protection Relay 40-57A (ZB65-57)
Eaton

Motor Protection Relay 40-57A

Part numberZB65-57EAN / GTIN4015082784591HS code8536.30
MOQ:1

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Product Description

Eaton ZB65-57 Motor Protection Relay 40-57A.

Technical Specifications

Manufacturer part number (MPN)
ZB65-57
EAN / GTIN
4015082784591
Sales unit
pcs
Eaton catalogue number
278459
UPC
782116358878
Depth
88 mm
Height
75 mm
Width
60 mm
Weight
0.23 kg
Certifications
CSA File No.: 012528; UL Category Control No.: NKCR; UL 60947-4-1; UL File No.: E29184; VDE 0660; CSA-C22.2 No. 60947-4-1-14; CSA; IEC/EN 60947; UL; IEC/EN 60947-4-1; CE; CSA Class No.: 3211-03
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
12.9 W
Heat dissipation per pole, current-dependent Pvid
4.3 W
Rated operational current for specified heat dissipation (In)
57 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, Between auxiliary contacts and main contacts, According to EN 61140; 440 V AC, Between main circuits, According to EN 61140; 240 V AC, Between auxiliary 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 - max
600 VAC
Features
Phase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102); Test/off button; Reset pushbutton manual/auto
Ambient operating temperature - max
55 °C
Ambient operating temperature - min
-25 °C
Ambient operating temperature (enclosed) - max
40 °C
Ambient operating temperature (enclosed) - min
-25 °C
Class
CLASS 10 A / IEC 60947-4-1, 8.2.1.5.1.1. c) 4 min
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30; Damp heat, constant, to IEC 60068-2-78
Degree of protection
IP00
Frame size
ZB65
Mounting method
Direct mounting; Direct attachment
Overload release current setting - max
57 A
Overload release current setting - min
40 A
Overvoltage category
III
Pollution degree
3
Product category
Accessories Overload relay ZB up to 150 A
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); 6000 V AC
Shock resistance
10 g, Mechanical, Sinusoidal, Shock duration 10 ms
Suitable for
Branch circuits, (UL/CSA)
Temperature compensation
≤ 0.25 %/K, residual error for T > 40°; Continuous
Short-circuit current rating (basic rating)
10 kA, SCCR (UL/CSA); 150 A, max. CB, SCCR (UL/CSA); 200 A, max. Fuse, SCCR (UL/CSA)
Short-circuit current rating (high fault at 480 V)
100 A, Class J, max. Fuse, SCCR (UL/CSA); 75 A, max. CB, SCCR (UL/CSA); 65 kA, CB, SCCR (UL/CSA)
Short-circuit current rating (high fault at 600 V)
100 kA, Fuse, SCCR (UL/CSA); 110 A, Class J/CC, max. Fuse, SCCR (UL/CSA)
Short-circuit protection rating
Max. 6 A gG/gL, fuse, without welding, Auxiliary and control circuits; 80 A gG/gL, Fuse, Type “2” coordination; 160 A gG/gL, Fuse, Type “1” coordination; Information on Type "1" and Type"2" coordination applies to 100 kA and 690 V
Screw size
M3.5, Terminal screw, Control circuit cables; M6, Terminal screw, Main cables
Screwdriver size
2, Terminal screw, Pozidriv screwdriver; 1 x 6 mm, Terminal screw, Standard screwdriver
Stripping length (control circuit cable)
8 mm
Stripping length (main cable)
11 mm
Terminal capacity (flexible with ferrule)
1 x (0.75 - 2.5) mm², Control circuit cables; 2 x (0.75 - 2.5) mm², Control circuit cables; 2 x (1 - 25) mm², Main cables; 1 × (1 - 25) mm², Main cables
Terminal capacity (solid)
2 x (1 - 16) mm², Main cables; 1 x (0.75 - 4) mm², Control circuit cables; 2 x (0.75 - 4) mm², Control circuit cables; 1 x (1 - 16) mm², Main cables
Terminal capacity (solid/stranded AWG)
2 x (18 - 14), Control circuit cables; 14 - 2, Main cables
Terminal capacity (stranded)
1 x (16 - 25) mm², Main cables
Tightening torque
3.5 Nm, Screw terminals, Main cables; 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
Release class
CLASS 10
Type of electrical connection of main circuit
Screw connection
Max. rated operation voltage Ue
690 V
Adjustable current range
40–57 A
Reset function input
No
Reset function automatic
Yes
Reset function push-button
Yes
Country of origin
Germany

Standards & Compliance

HS Code
8536.30

Cross References

  • EAN 4015082784591
  • SAP 1000071756
  • Code 8562425

Product Documentation

Document preview: MOTOR PROTECTION RELAY 40-57A (ZB65-57) — Specification Data Sheet (OEM)

Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy ZB65-57?
ZB65-57 can be ordered from cballast.com as a Eaton catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this Eaton product?
The manufacturer part number is ZB65-57.
What is the HS code for ZB65-57?
The customs tariff (HS) code for ZB65-57 is 8536.30.
Who manufactures ZB65-57?
ZB65-57 is a Eaton product in the Switchgear & Protection range.
Is a datasheet available for ZB65-57?
Yes — the ZB65-57 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for ZB65-57?
The minimum order quantity is 1.
Is ZB65-57 available?
Yes — ZB65-57 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).