Poznámky redaktora
... The auxiliary contacts change their switch position.Thermal overload relays T. 1250 A
A uxiliary tacts
The relays feature two integrated auxiliary contacts
• one contact, marked 96
• one contact, marked 98
The two contacts are electrically isolated and are thus suitable for use two different circuits
(control circuit and signalling circuit).
Description
A pplication
Thermal overload relays are economic electromechanical protection devices against current overload,
phase failure and phase loss. 310 A
- Electronic Overload Relays, current range: 0,1 . +70 ambient temperature
• Phase failure protection accordance ith IEC 947-4-1:
This device shortens the tripping times the event phase failure and thus improves the motor
protection within the limits the setting range.... A
- Electronic Overload Relays E16.. Starter
combinations are formed with contactors...
16 ABB STOTZ-KONTAKT GmbH
2CDC 106 014 C0203
.
For better protection with higher accuracy and stable tripping curves well stable temperature
behaviour ABB offers complete range „Electronic Overload Relays“
Product range
Standard relays
Types: T7DU, TA25DU, TA42DU, TA75DU, TA80DU, TA110DU, T/TA200DU,
T/TA450DU/SU
• Relays T/TA200 are connected directly into the motor circuit and the otor current
flows through them..
The relays feature setting scale Amperes.
Design and function
G eneral
The relays and the accessories com ply ith the ajor international (IEC), European (EN) and
national standards (DIN-VDE, NFC-UTE, BS, etc.. E1250DU, current range: 0,1 . 1250 A
Class Standard TA-Relays, TA25.
• Relay TA450SU powered via converters with saturation characteristic
and therefore have longer tripping times...
• Tem perature com pensation:
TA-Relays are temperature compensated between -25 . T450, current range: 0,1 . TA80, current range: 0,1 .
• Relay TA450DU powered via converters with linear characteristic.
• Tripping category:
Class Standard TA-Relays T7, TA25.
Technical data
All relays feature:
• Trip-free echanism :
Tripping the event fault not prevented even the Reset button pressed.2 setting current)...) and eet the approval and licensing regulations
necessary orldw ide.. +55 °C
Electronic overload relays offer compensation between -25 . The bimetallic releases bend subject the influence heating and this results tripping the
relay. They are used mainly for motors, also combination with pumps....
The therm overload relays are three-pole relays
They have bimetallic releases per phase) through which the motor current flows and are indirectly
heated.05 setting
current, tripping 1.. 1250 A
Class Standard TA-Relays, current range: ...... 310 A
- Electronic Overload Relays E16.. E1250DU, current range: 0,1 ..
The relays are constructed that they protect themselves the event overload until the series-
connected short-circuit protection trips, shown the tables. compliance with international and national standards,
the setting current the rated motor current and not the tripping current (no tripping 1.
