MS220KA, PTC-Resistor-Relay, ATEX, AC 220-240 V, 1 change-over contact

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Part number: T222445

Short-circuit monitoring of sensors SIL 1 (IEC 61508), PL c (ISO 13849) Ex II (2) G and D, PTB... more

PTC-Resistor-Relay, single PTC-circuit, ATEX-Approval 2014/34/EU

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 and 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.

Features

ATEX directive 2014/34/EU
SIL 1 according to IEC 61508
PL c according to ISO 13849
1 PTC-resistor (thermistor) set, each 3 or 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-housing, vertically arranged terminals housing 22.5 mm wide
assembly on DIN-rail or with 2 screws M4 (option)
UL Recognized Component
Option: other supply voltages

Technical data

Rated supply voltage Us

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AC 220 - 240 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

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3 or 6 PTC in series according DIN VDE V 0898-1-401 (formerly DIN 44081/82)

Switching point

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< 4000 Ω

Output relay

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1 or 2 change-over-contact (co)

Type of contact

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Type 2 see general technical information

Test conditions

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see general technical information

Rated ambient temperature

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-20...+55 °C

Dimensions h x w x d

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Design K: 75 x 22.5 x 115 [mm]

Attachment

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

Protection Housing/Terminals

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IP30/IP20

Weight

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approx. 150 g

Input / measuered parameter:	Measuring input PTC
Outputs:	Alarms/relays
Design:	Mount in switchgear cabinet
Approvals:	ATEX, UKCA, CE EC Declaration of Conformity, UL/CSA
Extras:	1 sensor input
Applications:	Protection of motors, Protection of pumps, Heat and power plants