MS220VA, PTC-Resistor-Relay, ATEX, AC 220-240 V, 1 change-over contact

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  • T222415
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-Speichern Approval 2014/34/EU

 

ZIEHL PTC thermistor relays protect motors, transformers, machines and equipment against thermal overload. Used in conjunction with respective PTC thermistors they provide a reliable temperature protection in the temperature range 60 °C up to 180 °C.

PTC-thermistors according DIN 44081 and DIN 44082 shall be connected. PTC thermistors 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. With ATEX approval, explosion-protected equipment in explosive gas atmospheres (marking G: gas) or in areas with combustible dust (marking D: dust) can be protected.

‚ÄčFeatures

  • ATEX directive 2014/34/EU
  • 1 circuit for 3 or 6 PTC thermistors
  • Short-circuit detection within the thermistor circuit
  • Output relay with 1 change-over contact (co)
  • Operating status display with LED

 

Technical data

Power supply

Rated supply voltage Us

.......

AC 110-120 V
AC 220-240 V

 

(see type plate)

.......

AC 380-415 V  (without UL marking)
AC / DC 24 V (without potentially separation)

 

Tolerance of voltage Us

.......

AC 0,9 Us -1,1 Us
DC 21 ... 30 V

 

Frequency (AC)

.......

50 / 60 Hz

 

Tolerance of frequency

.......

45 - 65 Hz

 

Power consumption

.......

< 2 VA

 

PTC thermistor connection

PTC thermistor

.......

acc. DIN VDE V 0898-1-401 (formerly DIN 44081/82)

 

Number

.......

3 or 6 PTCs in series

 

Cut-out-point

.......

3.3 kΩ…3.65 kΩ…3.85 kΩ

 

Reclosing point

.......

1.7 kΩ…1.8 kΩ …1.95 kΩ

 

response tolerance

.......

+/- 6° C

 

Collective resistance cold thermistor

.......

≤1,65 kΩ

 

Terminal voltage (PTC thermistor)

.......

≤ 2.5 V at R ≤ 3.65 kΩ
≤ 9 V at R = ∞

 

Terminal current (PTC thermistor)

.......

<1 mA

 

Short circuit

.......

20 Ω ≤ R ≤ 40 Ω

 

Power consumption

.......

<2 mW

 

 

Relay output (EN 60947-5-1)

Contacts

.......

1 change-over contact

 

Switching voltage max.

.......

max. AC 415 V

 

Switching current max.

.......

5 A

 

Switching power max. (ohm resistive load)

.......

120 W at DC 24 V
1250 VA

 

Rated operational current (Ie)

.......

AC15     Ie = 3 A     Ue = 250 V
DC13     Ie = 2 A     Ue = 24 V

 

Recommended fuse

.......

4 A (gG)

 

Mechanical contact life

.......

3 x 107 operations

 

Electrical contact life

.......

1 x 105 operations at 240 V 5 A

 

UL electrical ratings

.......

250 V ac, 3 A, general use
240 V ac, 1/4 hp, 2.9 FLA
120 V ac, 1/10 hp, 3.0 FLA
C 300

 

 

Testing conditions (EN 60947)

Rated impulse voltage

.......

4000 V

 

Overvoltage category

.......

III

 

Contamination level

.......

3            .....            2

 

Rated insulation voltage Ui

.......

250 V    .....     415 V

 

Transformer

.......

EN 61558-2-6

 

On-period

.......

100 %

 

Rated ambient temperature range

.......

-20 ... +55 °C

 

EMC - Immunity

.......

EN 61000-6-2

 

EMC - Emission

.......

EN 61000-6-3

 

Vibration resistance EN 60068-2-6

.......

2…13.2 Hz ± 1 mm
13.2 ... 100 Hz 1 g

 

 

Housing (Design V2)

Dimensions (H x W x D)

.......

90 x 35 x 58 mm

 

Line connection

.......

1 x 0,5…2.5 mm2 (AWG 22 – 14)

 

Stranded wire with insulated ferrules

.......

1 x 0.14 mm2 …1.5 mm2

 

Insulation strip length min.

.......

8 mm

 

Tightening torque

.......

0.5 Nm

 

Protection class housing EN 60529

.......

IP 30

 

Protection class terminals EN 60529

.......

IP 20

 

Fitting position

.......

Any

 

Mounting

.......

EN 60715 standard rail 35 mm

 

Optional: Screw mounting

.......

M4, only with additional bolt (not part of delivery)

 

Weight

.......

approx. 130 g

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