TPM-017 protector is mainly applied in single line protection for TTM-011A disconnection modules. It aims to avoid damage from over voltage and over current caused by thunderstorm and electricity power cable. The protector is suitable for various MDF, Cross Connect Cabinet and Distribution Box with TTM-011A modules. The JD-10A earth bar is attached to the subscriber line of the protectors. Once over voltage occurs, it can dissipate to earth via the grounded back mount frame. Such earth bar can’t be installed by mistake to jumper side
Main Features:
1. Gas tube is sealed with high alumina ceramics, has a long service life.
2. Gas tube has instant response to surge voltage, powerful capacity withstanding surge current, small capacitance.
3. PTC has excellence performance with small size.
4. Mounting frames have good anticorrosiveness performance since making of stainless steel.
Technical specification
(1) DC breakdown voltage (Udc): 230 (+30/-40)V;
(2) Impulse breakdown voltage (Umax): ≤800V (1kV/μs)
(3) Over current protection: 90mA/1hrs no action (when tested at temperature: +40℃ and test voltage: 60VDC)
(4) Lightening impulse tolerance: normal operation when tested at impulse voltage 4KV and voltage wave form 10/700μs for 10times every 1 minute
(5) Response time: 1minute when tested at Uac(max)=600Vr.m.s and f=50Hz, lasts for 500ms and 5times
(6) Delay time: 15minutes when tested at Uac(max)=220Vr.m.s and f=50Hz, no fire, no burning
(7) Resistance: ≤20Ω, inner resistance difference between lines <1.5Ω
(8) Current limit: response time <2s when current =0.5A; response time <0.3s when current = 1A
(9) Invalid (failure) protection performance: the inner or external wire of the discharge circuit shall be grounded within 15s when discharge current is up to 25Ar.m.s
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