Thermal overload relay ISKRA BR16 for contactors KLIBO7,5, ABB A9...A40, ABB AF16 and ISKRA KNL16...18
According to IEC/EN 60947-4-1. Alternative to TA25DU
Features
- Three-pole overload relay
- Protection for motors up to 16 A operating current and 690 V operating voltage
- Electrically insulated auxillary contacts (1 NO, 1 NC)
- Manual or automatic reset selectable
- Phase failure sensivity according to IEC/EN 60947-4-1
- Temperature compensation
- UL certification
- Degree of protection IP 20
Models and prices Thermal overload relay ISKRA BR16
Image | Range of adjustment (A) | Factory number | Max. back-up fuse gL/gG (A) | Power loss | Art.-No. | Price incl. VAT |
---|---|---|---|---|---|---|
0.1 - 0.16 A | 786.050.481 | 1 | 5...6,5W | 4036.7351 | € 27,67 Order In Stock: 9 | |
0.16 - 0.25 A | 786.050.482 | 4036.7352 | € 27,67 Order In Stock: 6 | |||
0.25 - 0.4 A | 786.050.483 | 4036.7353 | € 27,67 Order In Stock: 5 | |||
0.35 - 0.5 A | 786.050.484 | 4036.7354 | € 27,67 Order In Stock: 4 | |||
0.45 - 0.63 A | 786.050.485 | 4036.7355 | € 27,67 Order In Stock: 3 | |||
0.55 - 0.8 A | 786.050.486 | 3 | 4036.7356 | € 27,67 Order In Stock: 6 | ||
0.75 - 1 A | 786.050.487 | 4036.7357 | € 27,67 Order In Stock: 2 | |||
0.9 - 1.3 A | 786.050.488 | 4036.7358 | € 27,67 Order In Stock: 10 | |||
1.1 - 1.6 A | 786.050.489 | 4036.7359 | € 27,67 Order In Stock: 4 | |||
1.4 - 2 A | 786.050.490 | 6 | 4036.7360 | € 27,67 Get a quote In Stock: 0 | ||
1.8 - 2.5 A | 786.050.491 | 4036.7361 | € 27,67 Order In Stock: 57 | |||
2.3 - 3.2 A | 786.050.492 | 4036.7362 | € 27,67 Order In Stock: 22 | |||
2.9 - 4 A | 786.050.493 | 10 | 4036.7363 | € 27,67 Order In Stock: 259 | ||
3.5 - 4.8 A | 786.050.494 | 4036.7364 | € 27,67 Order In Stock: 58 | |||
4.5 - 6.3 A | 786.050.495 | 15 | 4036.7365 | € 27,67 Order In Stock: 44 | ||
5.5 - 7.5 A | 786.050.496 | 4036.7366 | € 29,23 Order In Stock: 67 | |||
7.2 - 10 A | 786.050.497 | 25 | 4036.7367 | € 27,67 Order In Stock: 92 | ||
9 - 12.5 A | 786.050.498 | 30 | 4036.7368 | € 27,67 Order In Stock: 281 | ||
11.3 - 16 A | 786.050.499 | 40 | 4036.7369 | € 26,98 Order In Stock: 52 | ||
15 - 20 A | 786.050.500 | 50 | 4036.7370 | € 26,98 Order In Stock: 57 |
Component parts for Thermal overload relay ISKRA BR16
Image | Description | Type | Art.-No. | Price incl. VAT |
---|---|---|---|---|
Holder for BR16 | RP16 | 4036.7380 | from € 9,44 Order In Stock: 13 |
Functional description
This thermal overload relay indirectly monitors the temperature of the motor coil by the current in the lead. For each motor lead a bi-metal with an associated heating coil is provided. If the charging rate of the motor exceeds the preset value for a given time, the bi-metal triggers contact 95-96 and shuts down the motor control circuit. An additional mechanical system ensures a faster triggering in case of a phase failure. Therefore the motor is perfectly protected against overload, phase failure and starting failure if dimensioned and adjusted correctly.
Technical data
Designation | BR16 |
Rated operating voltage Ue | 690 V |
Impulse voltage withstand Uimp | 6 kV |
Allowed ambient temperature | -5° C ... +55° C = Operating temperature |
Mounting position | Any |
Mounting | Hoot at the contactor, screw at the main terminal |
Connecting terminals | Screw terminals |
Terminal cross-section | 2x 1.0 - 10 qmm (finely stranded with conductor sleeve) 2x 0.75-2,5 qmm (finely stranded with conductor sleeve-auxilliary contacts) |
Adjustment range | See model and article number |
Tripping class | 10 A |
Frequency of operation | Up to 15 shifts / h or 60 shifts / h with 40 % |
Dimensions | |
Technical informations | Further technical data, connection diagram and dimensional drawing |
Adjustments and notes
Warning:
Insufficient tightened terminal screws result in excess warming. The device may only be mounted by professionals. Don't touch parts under voltage.
Check start of operation:
Press cutout switch "O" to reset the relay. Pressing the slide "2" in direction of arrow triggers the device. Contact 95-96 opens, contact 97-98 closes. In switch off mode the position indication device "1" shows yellow.
Adjust motor rated current:
To adjust the rated motor current turn the control knob "3" to the desired value.
Changeover manual - automatic reset:
Manual reset:
The button "4" resets the triggered overload protection. Please ensure adequate cooling time.
Automatic reset:
Press button "R"(4) and hold it. At the same time move slide (5) in direction of the arrow until it is latching. After letting go the slide the button "R"(4) must stay in it spressed in position
Auxiliary switch:
NC 95-96, NO 97-98, electrically isolated. Short-circuit protection of the auxiliary switches 6 A gl. Auxiliary contakt 97-98 can trip an indicating circuit. Bridging connection 95 and 97 realizes an changeover contact.