Shenzhen Zhenhua Qunying Electronics CO. ,Ltd.
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An Electrically-controlled Switch JQ - 50D(B) Normal Closed Single Coil 50 Ampere 48v For Golf Carts
1. Description of product
JQ-50D(B)/48-48AW DC contactor has a set of bridge normally closed contactors with load current up to 50A. Accord with GB1408.4-2010/IEC60947-4-1:2009 Ed.3.0.MOD, YD/T585-2010. Suitable for communication power equipment electrical control device.
2. Order mark standard
JQ - 50D(B) / 48 - 48AW
JQ: DC Ccontactor
100: Rated load 100A
D: Normally closed
(B): Communication power
A: Single coil
48: The contact voltage
48: The contact voltage
W: Bending mounting plate
3. Usage condition
| Ambient temperature: work | - 40 ~ + 60; storage and transportation: - 40 ~ + 70 |
| relative humidity | 95% at 40 |
| altitude | not more than 2000 meters |
| Vibration | 10-55hz |
| amplitude | 0.35mm |
| impact | 30m/s2 |
4. Standard,safty and environmental protection
(1) Comply with GB14048.4-2003 / IEC60947-4-1:2000 low voltage switching equipment and control equipment electromechanical contactor and motor starter standard；
(2) YD/T585-2010 General credit distribution equipment technical conditions.
5. Parameter table
| no. | requirements | unit | 24 | 48 | 54 | 60 |
| 1 | Coil resistance | Ω | 82.6 | 323 | 375 | |
| Coil consuming resistance | W | 7 | 7.1 | 7.8 | 5.1 | |
| Coil resistance error | Ω | ±8% | ±8% | ±8% | ||
| 2 | Action features | |||||
| Cold suction voltage:45～75%Ue | V | 10.8～18 | 21.6～35 | 24.3～40.5 | ||
| Cold release voltage 5%Ue～40%Ue | V | 1.2～9.6 | 2.4～19.2 | 2.7～21.6 | ||
| Contact pressure drop of main contact | mv | ≤80 | ≤80 | ≤80 |
6. The configuration, installation and terminal
7. Current curve
8. Analogue products as below