Catalogs > Industrial Controls Catalog > Supplemental Motor Protection > Current, Phase, Thermistor, and Motor Rotation Monitoring Relays > Dedicated Function Motor Protection Relays
Dedicated Function Motor Protection Relays
| Introduction |  |
Standards Compliance and Certifications | |
Product Selection | |
Specifications | |
Function and Wiring Diagrams | |
Approximate Dimensions | |
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MachineAlert Relays
The MachineAlert Relays family of dedicated function electronic motor protection relays offers state-of-the-art supplementary protective functions that are easily added and applied to motor control circuits. MachineAlert Relays are an economical choice for protecting equipment investments and minimizing production downtime. To meet specific application requirements, a full range of products allows selective addition of protective enhancing functions for both motors and equipment.
- Current monitors
- Phase monitors
- Thermistor monitors
- Rotation monitors
Product Overview
Description
Electronic Design
- Microprocessor technology provides highly accurate and repeatable protection
- Built-in LCD and keypad afford a precise, digital setting
- Wide adjustment ranges allow for application flexibility
- Password protection hinders unauthorized programming access
- Compact 22.5 mm and 45 mm packaging
- Global application with CE and cULus approvals
Enhanced Protection
- Current monitors that provide the added benefits of under- and overcurrent detection
- Phase monitors that guard against the damaging effects of phase loss, under- and overvoltage, phase imbalance, and phase reversal
- Thermistor monitors that protect equipment from overtemperature conditions
- Motor rotation monitors that signal motor rotational status
Easy to Use
- Compact size saves valuable panel space
- LCD/keypad programming takes the guesswork out of device setup
- DIN Rail mounting makes installation a snap
- Terminals provide IP20 finger safety protection and are clearly marked
- LCD display provides relay status indication
| Features | Typical Applications | ||
Current Monitors |
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Phase Monitors |
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Thermistor Monitors |
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Motor Rotation Monitors |
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Product Family Overview
| Features¬ | Bulletin 809S Current Monitors |
Bulletin 813S Phase Monitors |
Bulletin 817 Thermistor Monitors |
Bulletin 819 Motor Rotation Monitors |
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| E1 | E2 | E2 | E1 | E2 | E1 | E2 | |
| Under- and overcurrent protection | S | S | — | — | — | — | — |
| Under- and overvoltage protection | S | — | S | — | — | — | — |
| Phase imbalance and phase loss protection | — | — | voltage based |
— | — | — | — |
| Phase sequence protection | — | — | S | — | — | — | — |
| Overtemperature protection | — | — | — | S | S | — | — |
| Speed detection via frequency input | — | — | — | — | — | S | |
| Speed detection evaluation of motor feedback voltage | — | — | — | — | — | S | S |
| Operating Range | 0.5…5 A 1.0…24.9V 10…249V |
2.0…15.0 A | 500V AC or 690V AC |
— | — | IEC 400V AC CSA/UL 300V AC |
IEC 690V AC CSA/UL 600V AC |
| Case size (mm) | 22.5 | 45 | 45 | 22.5 | 22.5 | 22.5 | 45 |
| LCD / keypad | S | S | S | — | — | S | S |
| LED Status Indicator | — | — | — | S | S | — | — |
| Automatic reset | S | S | S | S | O | S | S |
| Manual reset | — | — | — | — | O | — | — |
| Remote reset | — | — | — | — | O | — | — |
| Changeover contacts (SPDT) | 1 | 1 | 1 | — | — | — | 1 |
| N.O. contacts | — | 1 | 1 | 2 | 2 (independent) |
2 (independent) |
1 |
| No setting required | — | — | — | S | S | — | — |
| Programmable trip level, reset level and time delay settings | S | S | S | — | — | S | S |
| Trip cause identification | — | — | S | S | S | — | — |
| Measuring Circuit Monitoring (open, short) | — | — | — | S | S | S | S |
| ¬ S= Standard O= Option |
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