Manufacturer: ZIEHL industrie-elektronik GmbH

Model / Type: MS220KA

Device Type: PTC Thermistor Relay (PTC-resistor relay)

Application: Protection against excessive temperature rise on electrical equipment (motors, etc.)

PTC Sensor Input: 1 PTC resistor set (3 or 6 PTC sensors in series)

Short-Circuit Monitoring: Yes (sensor circuit)

Output Relays: 1 or 2 change-over contacts (CO)

LED Indicators: ON and ALARM LEDs

Housing: K-housing with vertically arranged terminals, 22.5 mm width

Mounting: DIN-rail or with M4 screw option

Supply Voltage Options:
• AC 220-240 V (typical)
• AC/DC 24 V (option)

ATEX Approval: Directive 2014/34/EU (for explosive atmospheres)

Safety Standards: SIL 1 (IEC 61508), PL c (ISO 13849)

UL Compliance: UL Recognized Component

Operating Temperature Range: (Typical industrial range around −20…+55 °C) based on similar models/manuals

Thermistor Resistance Range: Approx. 50 Ω … 1500 Ω for correct operation (from operating manual data)

• Manufacturer: ZIEHL industrie-elektronik GmbH

• Model / Type: MS220KA

• Device Type: PTC Thermistor Relay (PTC-resistor relay)

• Application: Protection against excessive temperature rise on electrical equipment (motors, etc.)

• PTC Sensor Input: 1 PTC resistor set (3 or 6 PTC sensors in series)

• Short-Circuit Monitoring: Yes (sensor circuit)

• Output Relays: 1 or 2 change-over contacts (CO)

• LED Indicators: ON and ALARM LEDs

• Housing: K-housing with vertically arranged terminals, 22.5 mm width

• Mounting: DIN-rail or with M4 screw option

• Supply Voltage Options:
  • AC 220-240 V (typical)
  • AC/DC 24 V (option)

• ATEX Approval: Directive 2014/34/EU (for explosive atmospheres)

• Safety Standards: SIL 1 (IEC 61508), PL c (ISO 13849)

• UL Compliance: UL Recognized Component

• Operating Temperature Range: (Typical industrial range around −20…+55 °C) based on similar models/manuals

• Thermistor Resistance Range: Approx. 50 Ω … 1500 Ω for correct operation (from operating manual data)