MS220VA/MSR220VA

PTC-relay for the application as a protection device against inadmissible heating up at electrical equipment in areas with explosive gases (zones 1 and 2) and areas with combustible dust (21 an 22), e.g. for direct temperature- monitoring of explosion-proof motors EEx e and EEx d. This compact version is especially suitable for mounting in fuse-boxes or power-distribution panels. ATEX-approval according to directice 94/9/EC

• SIL 1 nach IEC 61508
• PL c nach ISO 13849
• 1 PTC-resistor (thermistor) set, each 1...6 PTC sensors
• short-circuit monitoring of sensor-circuit
• output-relay with 1 change-over contact (co)
• 2 LEDs for ON and ALARM
• housing for mounting in fuse-boxes
• mounting height 55 mm, 35 mm wide
• assembly on DIN-rail or with 2 screws M4
• Option:
  - other suppy-voltages