PTC-Relay MSF220K
PTC-Resistor-Relay for Dry-Transformers, 2 PTC-Circuits
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Product description
PTC-relay for the monitoring of dry transformers. Alarm 1 with relay in closedcircuit current mode for preliminary warning, releases at over-temperature at PTC-set 1 and serves at the same time as functional monitoring. Alarm 2 in operating current mode. Thus no wiping signal occurs when switching on the supply voltage on. Additional terminals enable comfortable wiring from supply voltage to relays K1 and/or K2.
Changes from T221715 / T221716 to T221717 / T221718 (cURus, monitoring of sensors for short circuit an interrupt activatable, improved test function)
Functions
- 2 PTC resistor sets
- 2 output relays 1 change-over contact (co)/ 1 normally open contact (no)
- monitoring of sensors for short-circuit and break activatable
- TEST-button (delayed)
- LEDs for ON, alarm 1 and 2
- red LEDs for alarm 1 and alarm 2
- K-type housing
- Housing for mounting on DIN-rail 35 mm or wall-mount with screws M4
- alternative to foreign product type Elbag/Joppich TS-01, TS-02
Technical data
Rated supply voltage Us
AC 220 - 240 V ± 10 %, 50/60 Hz, ≤ 2 VA
AC/DC 24 - 240 V, AC19 - 264 V, DC 20 - 297 V < 3 VA,
Connectable PTC resistors
2 x 1...6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Switching point
< 4000 Ω
Output relay
1 change-over-contact (co), 1 normally-open contact (no)
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. 110 g
T221717 replaces model T221715
T221718 replaces model T221716
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