Application
LR7 thermal relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V , rated current 0.1-38A for protecting the phase berak when the electric motor is overload , the relay has different mechanism and temperature compensation & can be plugged in LC1-D series AC contactor , It is the most advanced thermal relay in the nineties in the world
Functions provided by these relays, are phase-failure protection, temperature compensation, ON/OFF indication , and manual/automatic reset.
Applicable Standards
National Standard: GB 14048
International Standard: IEC 60947-4-1
The relays can be mounted onto contactors or installed as single units
Operating Conditions
1 The altitude couldn t exceed 2000m.
2 Ambient temperature: -5 ~+55 and the average temperature no more than +35 in 24 hours
3 Atmosphere: Comparative humidity no more than 50% at max +40 , and it may be higher at a lower temperature. The lowest average temperature no more than +20 in the wettest month.The maximum average comparative humidity of this month couldn t exceed 90%, The changeof temperature leading to dew on the product must be considered
4 Class of pollution: Class 3
5 The slope between installation surface and vertical surface couldn t exceed 5o
6 Keeping away from explosive, corrosive and electric atomy
7 Keeping dry
8 The product should be used and installed at certain place without any shock, vibration etc.
Features
Three-phase thermal relays with release class 10A.
With differential phase-failure protection.
With continuous current adjusting scale.
With temperature compensation.
With TEST (OFF) button.
With Manual/Auto reset button.
With Auxiliary contacts 1 NO+1 NC insulated each other.
Mounting: plug in connection with contactor or install as a single unit.
Technical parameters
Type |
Setting range (A) |
| LR7-20 |
0.6~1.11 |
| 1.11~1.66 |
| 2.5~3.7 |
| 1.62~2.5 |
| 3.7~5.6 |
| 5.6~8.4 |
| 8.4~11.9 |
| 11.9~16 |
| 16~23 |
| 23~27 |
| 27~33 |
| 33~38 |
TRADE INFO
Trade Terms:FOB ,CIF ,CFR,EXW,DDP
Payment terms:T/T,L/C,Western union,Paypal,Escrow,MoneyGram
Payment conditions:30% deposit in advance,70% balance before shipping.
Delivery time:3-7working days after deposit,2-4 working days for inventory
Packing:Neutral carton,Wooden case for large size
Shipping:By sea,by air and by express delivery
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