Thermistor Motor Protection Relay
MK 9003 ATEX
Article number:
0055452
Type:
MK9003.12/10110 ATEX AC230V
Description
Temperature monitoring of explosion protected Motors by „extended safety“ EX e EN 60079-7, „pressure proof enclosure“ EX d EN 60079-1 or „overpressure enclosure“ Ex px in gas containing atmosphere as well as „protection by enclosures“ Ex t EN 60079-31 in dust containing atmosphere. The thermistor Motor protection relay protects Standard and Explosion proof Motor against overheating due to overload accoding to EN 60079-14 and EN 60079-0.
Technical specifications
| Auxiliary voltage: | AC, DC |
|---|---|
| Classification: | Thermistor-Motorschutz |
| Enclosure design: | Switch cabinet |
| Measuring range max.: | > 3.1 kΩ |
| Output contacts: | 2 C/O contacts |
| Type: | MK 9003 ATEX |
| Width: | 22,5 mm |
News
Advantages / Customer benefits
- Reliable temperature monitoring of motors
- Rapid fault location
Features
- According to EN 60947-5-1, EN 60947-8, EN 60079-14, EN 61508, EN 50495, EN 13849
- Detection of
- Overtemperature
- Broken wire in sensor circuit
- Short circuit in sensor circuit - 1 input for 3 or 6 PTC-reistors
- Functions as options or settable with DIP-switches:
- Automatic reset (fault is not stored)
- Manual reset (fault is stored)
- Manual reset only on start-up
- Manual reset on and also after start-up - No voltage safe manual reset
- Closed circuit operation
- LED indicators for
- Auxiliary supply
- Contact position
- Overtemperature, broken wire or short-circuit in sensor circuit - 2 changeover contacts
- Button for reset function
- Remote reset via terminals X1 / X2 (NO contact)
- Optionally safe separation according to EN 61 140, EN 60 947-1, 6 kV/2 between:
- Auxiliary voltage and measuring circuit
- Auxiliary voltage and output contacts
- Measuring circuit and output contacts
- The 2 changeover contacts (only with 2 changeover contacts) - Width 22.5 mm