connection block
1.grounding and alarm devices.
2Reed surface of silver, copper with high-quality

Summary:

Protection connection block is use in  relay the following 2M to  the local network or public communication telephone copper wire at the entrance, providing a range of over voltage, over current four sound and light alarm system. Can clearly distinguish visual alarm circuit to prevent external over-voltage over-current signal to the telephone exchange damage. It is used in conjunction with the protection unit at the MDF, connect the bureau switch and subscriber line equipment.

Feature

1. Reed surface of silver, copper with high-quality elastic material that can be wire diameter of 0.4 ~ 0.6mm

2. Shell of high quality plastic, with a grounding and alarm devices.

Main performance parameters:

Working conditions:

(1) Working temperature: -5 ~ +40 (degree) (2) Relative humidity: ≤ 85% (30 degrees)

(3) Atmospheric pressure: 70 ~ 106 (kpa)

Electrical properties:

(1) Insulation Resistance ≥ 1000MΩ

(2) high-voltage protection> 3000V (DC) / mm without breakdown, no arc.

(3) Contact Resistance ≤ 7mΩ between reed wire and terminal into the connection between the contact resistance ≤ 3mΩ

(4) Pull strength: ≥ 25N

(5) Plug time : ≥ 200

(6) Fire-retardant plastic indicators: FV-0 grade

(7) Respond to alarm time: ≤ 2 s