Eaton EMT6 and EMT6-DB Series Overload Relays
Instruction Leaflet
Important Safety Information
Electric current! Danger to life! Only skilled or instructed persons may carry out the following operations.
(This warning is provided in multiple languages: German, French, Spanish, Italian, Chinese, Russian, Dutch, Danish, Greek, Portuguese, Swedish, Finnish, Czech, Estonian, Hungarian, Latvian, Lithuanian, Polish, Slovenian, Slovak, Bulgarian, Romanian, Croatian, Turkish, Ukrainian, and Arabic.)
CSA / UL Warnings
WARNING: Transient surge suppression shall be installed on the line side of this equipment and shall be rated n/a V (phase to ground), 275 V (Phase to phase), suitable for overvoltage category III, and shall provide protection for a rated impulse withstand voltage peak of 4 kV.
AVERTISSEMENT: Un dispositif de suppression des surtensions transitoires doit être prévu côté ligne de l'appareillage et doit être de n/a V (phase/terre), 275 V (phase/phase), compatible avec la catégorie de surtension III, et doit fournir une protection pour une tension assignée de tenue aux chocs de 4 kV.
UL/CSA Conditions:
- Max. Surrounding air temperature rating 40 centigrade degree.
- Use copper conductors only.
- For use in pollution degree 2 environment only.
Mounting and Installation
The devices can be mounted vertically or horizontally on a 35 mm DIN rail (EN 60715). Ensure adequate clearance for ventilation.
Diagram Description (Page 2): Illustrates the mounting of the EMT6/EMT6-DB units on a DIN rail, including dimensions and orientation. It also shows the terminal layout for control supply (A1/A2), auxiliary contacts (13/14, 21/22), thermistor (T1/T2), and remote reset (Y1/Y2).
Wiring and Specifications
Terminal Identification:
- (a) Rated control supply voltage (A1/A2)
- (b) Auxiliary contact (break contact 21/22)
- (c) Supply LED (green)
- (d) Test/Reset button
- (e) Manual and automatic reset selector
- (f) Tripped LED (red)
- (g) Auxiliary contact (make contact 13/14)
- (h) Thermistor connections (T1/T2)
- (i) Remote reset connections (Y1/Y2)
Wire Gauge and Torque Specifications:
| Wire Size (mm²) | Wire Size (AWG) | Torque (Nm) | Torque (lb-in) | Control Supply Voltage (A1/A2) | Control Supply Voltage (EMT6 (230V) / EMT6-DB (230V)) | |
|---|---|---|---|---|---|---|
| 1 x (0.5 - 2.5) | 1 x (0.5 - 2.5) 20 - 14 | 0.8 mm x (4 - 5.5 mm) | 0.8 - 1.2 | 7.1 - 10.6 | 24 V - 240 V 50 - 400 Hz (-15%, +10%) | 230 V 50/60 Hz (-15%, +10%) |
| 2 x (0.5 - 1.5) | 2 x (0.5 - 1.5) 20 - 16 | 0.03" x (0.16 - 0.22") | 0.8 - 1.2 | 7.1 - 10.6 | 24 V - 240 V (-15%, +10%) |
Note: Each terminal must not be assigned cables with different cross-sections.
Operation Modes
The relays can be operated in "HAND" (Manual) or "AUTO" (Automatic) modes. The mode selection determines the reset behavior.
HAND Mode (Manual Reset)
DANGER: Danger to personnel and machines. In "HAND" mode, the released relay switches on automatically after a voltage dip.
(This warning is provided in multiple languages.)
Diagram Description (Page 3): Illustrates the timing sequence for the HAND mode, showing the control supply, reset signal, and tripped LED behavior.
AUTO Mode (Automatic Reset)
DANGER: Danger to personnel and machines. In "AUTO" mode, machines can restart automatically after a release.
Important Note: EMT6 and EMT6 (230V) models can only be operated in "AUTO" mode.
(This warning is provided in multiple languages.)
Diagram Description (Page 3 & 4): Illustrates the timing sequence for the AUTO mode, showing the control supply, reset signal, and tripped LED behavior.
Test/Reset Function
The Test/Reset button allows for manual testing of the relay's trip function and resetting it. The behavior (manual vs. automatic reset) is determined by the mode selector.
Manufacturer Information
EU: Eaton Industries GmbH, Hein-Moeller-Straße 7-11, 53115 Bonn, Germany
UK: Eaton Electric Ltd., P.O. Box 554, Abbey Park, Southampton Road, Titchfield, PO14 4QA, United Kingdom
USA: Eaton.com/eatoncare, +1 877-386-2273
© 2022 Eaton Industries GmbH
