LLI-750DC Live Line Indicator
DC live line indicator for overhead lines up to 750 V DC, with red LED indication when voltage is present.
Indicates the presence of voltage on DC overhead lines up to 750 V DC using red LED indicators.
Aimed at DC traction and overhead line work, where confirming a line is dead before access is a safety requirement.
Availability
Backordered — sourced independently
Not on our shelf today. Z Power Electric sources this part through independent, surplus, and new-old-stock channels rather than waiting on the factory queue, and confirms price and lead time within 24 hours.
Catalog pricing
Request pricing and availability for this item. Z Power Electric can confirm lead time, sourcing options, and part details.
- 30-day returnsOn standard orders
- 24-hour quoteFrom our sourcing team
Quick facts
- Brand
- T&R Test Equipment
- Part number
- LLI-750DC
- Category
- Safety & Test Equipment
Also searched as
LLI750DC · LLI 750DC
Downloadables
Product overview
Part of the LLI DC range; choose the indicator rated at or above the line voltage.
Specifications
- Part Number
- LLI-750DC
- Brand
- T&R Test Equipment
- Weight
- 2 kg
Key features
- Can be used on DC high voltage overhead lines up to 750V DC
- Earth lead and clamp attached to long-length handle
- Red LED indicators when voltage is detected
- Loud 70dB alarm when voltage is detected
- Audible indication: Buzzer, 3.1 kHz tone, modulated @ 2Hz
- Can be used on third rail installations
- Battery check function
- Standard Threshold: 250V DC
- Resistor Chain: 1.5MΩ
- Operating time: 5 minutes nominal
Questions about this part
Where can I buy the T&R Test Equipment LLI-750DC?
Not on our shelf today. Z Power Electric sources this part through independent, surplus, and new-old-stock channels rather than waiting on the factory queue, and confirms price and lead time within 24 hours. Z Power Electric is an independent MRO supplier in Calimesa, California — we buy outside authorized distribution, which is why we can quote parts that a standard distributor shows as unavailable.
Is the T&R Test Equipment LLI-750DC discontinued or obsolete?
Manufacturer lifecycle status changes by part number and region, so we confirm it per quote rather than publishing a claim that may be out of date. Either way it does not change what we do: we source discontinued, obsolete, and backordered parts as a matter of course, and the quote states whether we located the original or are proposing an equivalent.
How long does it take to get a quote on the T&R Test Equipment LLI-750DC?
We respond to every sourcing request within 24 hours, and the quote states a confirmed ship date rather than an estimate. Mark the request urgent if the part is holding up a line.
Is Z Power Electric an authorized T&R Test Equipment distributor?
No — and that is the point. Z Power Electric is an independent supplier, so we are not limited to T&R Test Equipment's authorized channel or its order book. We source through surplus, new-old-stock, and independent inventory, and we state the condition and source channel of every unit on the quote.
Related products
Similar inventory

