MSR220VA, PTC-Resistor-Relay, ATEX, Reset, AC 220-240 V, 1 change-over contact
Ready to ship today,
Delivery time appr. 1-3 workdays
- Part number: T222435
PTC-resistor relay, single PTC-circuit, ATEX-Approval 2014/34/EU, with RESET
Ziehl PTC thermistor relays protect motors, transformers, machines and equipment against thermal overload. These are according to DIN EN 60947-8 and are thus exchangeable. 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.
Features
- 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
- electronic reclosing lock (disconnectable)
- integrated RESET-button
- link for external RESET
- automatic RESET at voltage recoveryOperating status display with LED
Technical data
Rated supply voltage Us
.......
AC 220-240 V
AC/DC 24 V, without potential 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 60 947)
Rated impulse voltage
.......
4000 Vv
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, Reclosing lock |
| Applications: | Protection of motors, Protection of pumps, Heat and power plants |
