Motor Protection Relay 0,4 - 0,6A (278434)
Eaton

Motor Protection Relay 0,4 - 0,6A

Part number278434EAN / GTIN4015082784348HS code8536.30
MOQ:1

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Product Description

Eaton 278434 Motor Protection Relay 12A.

Technical Specifications

Manufacturer part number (MPN)
278434
EAN / GTIN
4015082784348
Sales unit
pcs
Eaton catalogue number
278434
Depth
88 mm
Height
67 mm
Width
45 mm
Weight
0.141 kg
Certifications
CE; CSA File No.: 012528; IEC/EN 60947; UL File No.: E29184; UL 60947-4-1; CSA; CSA Class No.: 3211-03; IEC/EN 60947-4-1; UL Category Control No.: NKCR; UL; CSA-C22.2 No. 60947-4-1-14; VDE 0660
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
4.8 W
Heat dissipation per pole, current-dependent Pvid
1.6 W
Rated operational current for specified heat dissipation (In)
0.6 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 main circuits, According to EN 61140; 240 V AC, Between auxiliary contacts, 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)
Features
Reset pushbutton manual/auto; Trip-free release; Test/off button; Phase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)
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
IP20; IP00
Frame size
ZB12
Mounting method
Direct mounting; Direct attachment
Overload release current setting - max
0.6 A
Overload release current setting - min
0.4 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 (high fault at 600 V)
1 A, Class J/CC, max. Fuse, SCCR (UL/CSA); 100 kA, Fuse, SCCR (UL/CSA)
Short-circuit protection rating
4 A gG/gL, Fuse, Type “2” coordination; 25 A gG/gL, Fuse, Type “1” coordination; Max. 6 A gG/gL, fuse, without welding, Auxiliary and control circuits; Information on Type "1" and Type"2" coordination applies to 100 kA and 690 V
Screw size
M4, Terminal screw; M3.5, Terminal screw, Control circuit 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)
10 mm
Terminal capacity (flexible with ferrule)
2 x (0.75 - 2.5) mm², Control circuit cables; 2 x (1 - 4) mm², Main cables; 1 x (0.75 - 2.5) mm², Control circuit cables; 1 x (1 - 4) mm², Main cables
Terminal capacity (solid)
2 x (0.75 - 4) mm², Control circuit cables; 1 x (1 - 6) mm², Main cables; 2 x (1 - 6) mm², Main cables; 1 x (0.75 - 4) mm², Control circuit cables
Terminal capacity (solid/stranded AWG)
2 x (18 - 14), Control circuit cables; 18 - 8, Main 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
0.4–0.6 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 4015082784348
  • SAP 1000055694
  • Code 8840379

Product Documentation

Document preview: MOTOR PROTECTION RELAY 0,4 - 0,6A (278434) — 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 278434?
278434 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 278434.
What is the HS code for 278434?
The customs tariff (HS) code for 278434 is 8536.30.
Who manufactures 278434?
278434 is a Eaton product in the Switchgear & Protection range.
Is a datasheet available for 278434?
Yes — the 278434 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 278434?
The minimum order quantity is 1.
Is 278434 available?
Yes — 278434 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).