Thermal relay PTC, type MS(R)220 KA

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. Vertically arranged terminals. Each terminal remains  accessible even if all others are already occupied.

 

ATEX-approval according to
directive 94/9/EC
1 PTC-resistor (thermistor)
set, each 1...6 PTC-sensors

short-circuit monitoring of sensor-circuit
output-relay with 1 or 2 change-over contacts (co)
2 LEDs for ON and ALARM
K-kousing,vertically arranged terminals
housing 22.5 mm wide
assembly on DIN-rail or with 2 screws M4 (option)
UL Recognized Component
Option:
- other suppy-voltages

MSR 220 KA

Same execution as MS 220 KA,
additionally with electronic reclosing
lock. An alarm is stored until
a reset is made.

 

ATEX-approval according to
directive 94/9/EC
electronic reclosing lock (disconnectable)
integrated RESET-button
link for external reset
automatic reset at voltage
recovery
LEDs for power-on (green)
and alarm (red) in resetbutton
UL Recognized Component
Option:
- other suppy-voltages

Order-numbers:	1 CO	2 CO
AC 220-240 V	T 222165	T 222175
AC / DC 24 V		T 222171
AC 110-120 V		T 222173
AC 380-415 V (brak UL)		T 222176