DOLD MK 9003 ATEX – Thermistor Motor Protection Relay

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.

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

Technical specifications

Available variants

Tell us the variant you need in your quote request.

Downloads

• Datasheet MK 9003 ATEX (pdf – 2.35 MB)