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Overload relay ISKRA BR63
Thermal overload relay BR63
Area 35 - 47A
Item No. 4036.7373
Special Features
- 3-pole overload relay
- According to IEC/EN 60947-4-1
- Protection for motors up to 47A rated current and 690V operating voltage
- Electrically isolated auxiliary contacts (1 normally closed, 1 normally open)
- Manual or automatic reset selectable
- Phase failure sensitivity according to IEC/EN 60947-4-1
- Temperature compensation
- UL approval
- Protection class IP20
Versions
| Item No. | Manufacturer ID | Delivery Time | Stock | Quantities / Prices |
|---|---|---|---|---|
| 4036.7373 | 786.050.506 | 1 day(s) | 2 |
Technical Features
Series Specifications
Designation
BR63
Rated operating voltage Ue
690V
Impulse voltage load capacity Uimp
6kV
Permissible operating temperature
-5°C ... +55°C
Installation position
Arbitrary
Mounting
Hooking onto the contactor, securing with screws in the main terminal blocks.
Connection terminals
Screw terminals
Connection cross-sections
2x 6.0 - 35 mm² (fine stranded with AEH)
Connection cross-sections auxiliary contacts
2x 0.75-2.5 mm² (fine-stranded with AEH)
Trigger class
10
switching frequency
Up to 15 cycles/h or 60 cycles/h with 40%.
Individual Parameters
Adjustment range (A)
35...47
Max. backup fuse gL/gG (A)
125
power loss
11...15.5 W
Manufacturer
Iskra, d.d.o., Stegne 21, SI - 1000 Ljubljana
Settings and notes - see also "More images".
Warning:
Insufficiently tightened clamping screws lead to unacceptable heating. The device may only be connected by qualified personnel. Do not touch live parts!
Commissioning Check:
Press the off button "O" to reset the relay. Pressing the slider "2" in the direction of the arrow will activate the device. The contact 95-96 opens, and the contact 97-98 closes. In the off state, the switching position indicator shows "1" in yellow.
Setting to Motor Rated Current:
The setting to motor rated current is done by turning the adjustment knob (3) until the point of the knob is at the desired rated current value.
Switching Between Manual - Automatic Reset:
Manual Reset:
With the button "R" (4), the triggered overload protection is reset. Please observe sufficient cooling time.
Automatic Reset:
Press and hold the button "R" (4) while moving the slider (5) in the direction of the arrow until it clicks into place. After releasing the slider, the button "R" (4) must remain pressed.
Auxiliary Switch:
Normally open contact 95-96, normally closed contact 97-98 galvanically isolated. Short circuit protection for the auxiliary switch 6A AC. The normally closed auxiliary contact 97-98 can be used to operate a signaling circuit. A single-pole changeover contact can be achieved by inserting a bridge between terminals 95 and 97.