Dold Thermistor Motor Protection Monitoring Relay, SPDT, DIN Rail

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Subtotal (1 unit)*

R 2 843,76

(exc. VAT)

R 3 270,32

(inc. VAT)

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1 +R 2,843.76

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RS stock no.:
240-8973
Mfr. Part No.:
MK9052.11 DC24V
Manufacturer:
Dold
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Brand

Dold

Monitoring Application

Thermistor motor temperature protection

Contact Configuration

SPDT

Mounting Type

DIN Rail

Time Delay

<20ms

Series

MK 9052

Height

82mm

Length

99mm

Dimensions

99 x 22.5 x 82mm

Width

22.5mm

Minimum Operating Temperature

-20°C

Operating Temperature Range

+60°C

Maximum Operating Temperature

+60°C

COO (Country of Origin):
MT

MK9052 - Thermistor motor protection relay


1 input for thermistors or bi-metallic contacts
Wire breakage detection in the sensor circuit
LED for switching status
Rest current principle
1 changeover
22.5 mm overall width

The MK9052 motor protection relay is used to prevent thermal overloads in motors (for example as caused by high switching frequencies, heavy start-up loads, single phase operation, interrupted cooling, high ambient temperature).
Special thermistors (PTC resistors) developed specifically for motor protection are used as temperature sensors. Up to 6 sensors can be switched in sequence; when a fixed resistance level is reached, they cause the output relay of the MK9052 to de-energise.

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