PTC-Resistor-Relay Type MS220K2

PTC-Resistor-Relay, 2 PTC-circuits

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Part number

AC 230 V
AC/DC 24 V

Approvals

Product description

 

ZIEHL PTC-resistor relays protect motors, transformers, machines and equipment against thermal overload. With ZIEHL PTC Sensors MINIKA ® applied they offer best solutions for nominal response temperatures 60°C…180°C.
ZIEHL PTC-resistor relays are designed for PTC-sensors according to DIN 44081 and DIN 44082. Therefor sensor and relays are exchangeable. PTC-resistor sensors are suitable for the installation into windings of electrical machines, bearings and transformers as well as to monitor the temperature of liquid media, airflow and gases.

Used in conjunction, they provide a effectively and reliable protection in case of

  • blocking rotors, heavy starts, countercurrent operation
  • undervoltage and phase failure
  • increased ambient temperature and hindered cooling

The MS220K2 monitors 2 PTC resistor sets at the same time. If a temperature rise occurs in one set, the appropriate output relay releases. With this relay, 2 PTC-sets can be independently monitored.

 

Functional overview

  • 2 PTC-resistor sets, each 1...6 PTC resistors
  • output relays 2 x 1 change-over contact (co)
  • LEDs for operation and alarm
  • UL-Recognized Component

 

Technical data

Rated supply voltage Us

.......

AC 230 V ± 10 %, 50/60 Hz ≤ 2 VA
AC/DC 24 V, AC ± 10 % DC 21- 30 V < 2 VA,
without potential separation

 

Connectable PTC resistors

.......

2 x 1...6 PTC according to DIN 44081 or 44082

 

Switching point

.......

< 4000 Ω

 

Output relay

.......

2 x 1  change-over-contact (co)

 

Type of contact

.......

Type 2 (see general technical information)

 

Test conditions

.......

see general technical information

 

Rated ambient temperature

.......

-20...+55 °C

 

Dimensions h x w x d

.......

Design K: 75 x 22.5 x 115 [mm]

 

Attachment

.......

on 35 mm DIN rail according to EN 60 715 or screws M4 (option)

 

Protection Housing/Terminals

.......

IP30/IP20

 

Weight

.......

approx. 145 g