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Leoch PLX12-400FT 12V 100AH Pure Lead High Rate Battery for UPS Backup
Leoch PLX12-400FT 12V 100AH Pure Lead High Rate Battery for UPS Backup
Leoch PLX12-400FT Battery - 12V 100Ah Pure Lead High Rate AGM, Front Terminal
Warranty
Why Telecom Racks Want the Terminals Up Front
- 100 Ah at the 10-hour rate - to 1.80 volts per cell at 25°C, the capacity that sizes a -48 volt plant on an eight-hour reserve.
- 390 amps for 5 minutes - to 1.67 volts per cell, 213 amps for 15 minutes and 75.1 amps for one hour.
- 145.8 watts per cell for one hour - to 1.67 volts per cell, the figure for a UPS that must ride an hour to a generator or a controlled shutdown.
- 0.3C charge acceptance - up to 30 amps of recharge current at 25°C, so a string is back to full float within a working day of a deep event.
- M6 terminal, M8 optional - Leoch's T8 insert as standard; specify the hardware that matches your existing connectors on the quote.
Technical Specifications
| Leoch PLX12-400FT Specifications (current Leoch sheet: PLX12-400FT(A)) | |
|---|---|
| Part Number | PLX12-400FT (also written PLX12-400FT(A), PLX12 400FT, PLX 12-400FT and plx12-400ft) |
| Series | Leoch PLX, pure lead thin plate high rate, front terminal |
| Battery Type | Pure lead thin plate AGM, valve regulated lead acid (VRLA) |
| Nominal Voltage | 12V (6 cells) |
| Nominal Rating, 15 Minutes | 400 W per cell to 1.67 VPC at 25°C (2,400 W per battery); discharge table row reads 405 W per cell |
| Capacity, 10-Hour Rate | 100 Ah to 1.80 VPC at 25°C |
| Discharge Current, 5 Minutes | 390.0 A to 1.67 VPC; 329.6 A to 1.80 VPC |
| Discharge Current, 15 Minutes | 213.0 A to 1.67 VPC; 193.4 A to 1.80 VPC |
| Discharge Current, 1 Hour | 75.1 A to 1.67 VPC; 69.7 A to 1.80 VPC |
| Discharge Power, 5 Minutes | 670.0 W per cell to 1.67 VPC |
| Discharge Power, 1 Hour | 145.8 W per cell to 1.67 VPC |
| Short Circuit Current | 2,200 A |
| Internal Resistance | Approximately 4.4 milliohms, fully charged, at 25°C |
| Maximum Charge Current | 0.3C (30 A) at 25°C |
| Float Charge Voltage | 2.27 ± 0.02 V per cell at 25°C |
| Equalization Charge Voltage | 2.35 to 2.40 V per cell at 25°C |
| Temperature Coefficient | -3 mV per cell per °C on float; -4 mV per cell per °C on equalize |
| Terminal Type | Front terminal, M6 threaded insert (T8); M8 optional |
| Length | 405.4 mm (16.0 inches) |
| Width | 108 mm (4.25 inches) |
| Height | 287 mm (11.3 inches), container and total |
| Weight | 31.5 kg (69.4 lbs) |
| Operating Temperature | Discharge -40°C to 65°C (-40°F to 149°F); charge -20°C to 54°C (-4°F to 129°F); storage -20°C to 50°C (-4°F to 122°F) |
| Effect of Temperature on Capacity | 103% at 40°C; 100% at 25°C; 86% at 0°C |
| Self Discharge and Storage | Up to 24 months storage at 25°C, shorter when warmer; freshening charge at 2.10 V per cell open circuit or at the storage limit |
| Container Material | PC-ABS, flame retardant to UL 94 V-0, heat sealed and 100% leak tested |
| Standards | IEC 60896; Eurobat "Very Long Life"; CE and UL; IATF 16949, ISO 9001, ISO 14001 and ISO 45001 plants |
| Design Life | 15 years at 25°C on float service (Leoch) |
| Warranty | 60 months, full replacement (Leoch, PLX) |
Where This Battery Is Used
- -48 volt telecom plants - four-block strings on 23-inch rack shelves in central offices, huts and cell sites, where front access decides how long a swap takes.
- UPS in racked enclosures - modular and rack-mount UPS battery cabinets built around the 405.4 by 108 mm front-terminal footprint.
- High power DC backup - switchgear and control supplies that pull a heavy current for a short time, where 390 amps for 5 minutes covers the event.
Ordering and Freight
Frequently Asked Questions
What is the warranty on the PLX12-400FT, and how does it relate to the 15-year figure?
Leoch's warranty is 60 months, full replacement. The 15 years is design life, Leoch's published estimate of float service at 25°C, and the two are unrelated commitments. A telecom plant that holds its battery room near 25°C and floats at 2.27 volts per cell is the environment the design life assumes. The warranty runs from the date on the battery and is confirmed in writing with your quote, together with the current Leoch document that governs it.
My existing blocks say PLX12-400FT. Leoch's sheet says PLX12-400FT(A). Same battery?
The (A) is Leoch's current revision designation for this part; the range summary and the per-part datasheet both list the 400 watt front-terminal block only in its (A) form. The rating, the 100 Ah capacity, the 405.4 by 108 by 287 mm case and the 31.5 kg weight match the PLX12-400FT figures this page has always carried. Replacing blocks inside an existing PLX12-400FT string with current production is the normal case, and the quote states the exact designation that ships so your records match the labels on the shelf.
Front terminal or top terminal at the 400 watt class?
The rack decides. The PLX12-400FT puts the posts on the front face in a 405.4 by 108 mm footprint made for 23-inch shelves. Leoch's top-terminal blocks near the same rating, the PLX12-405 (306 by 168 mm) and PLX12-420 (340.9 by 170 mm), are wider and shorter and belong on open battery stands or in cabinets with top access. If the string lives in a rack where you cannot reach over the blocks, front terminal is the answer regardless of price. If it sits on a stand with clearance above, the top-terminal PLX12-420 gives 20 more watts per cell for about the same lead.
How do four PLX12-400FT fit a 23-inch rack shelf?
Side by side, long axis front to back. Each block is 108 mm (4.25 inches) wide, so four take 432 mm plus the gaps the shelf design allows, inside a 23-inch (584 mm) frame. Depth is 405.4 mm (16 inches) and height 287 mm (11.3 inches) including terminals, which sets the shelf pitch. Leoch's range summary notes the front-terminal blocks are designed for 19-inch and 23-inch racks in industry footprints; on a 19-inch shelf the count drops to three. Send the shelf drawing or the current part number and the specialist confirms the count before the quote goes out.
Send the current part number, a photo of one block's label, the quantity and your delivery ZIP. A specialist confirms the revision that ships, the terminal hardware and the shelf fit, and quotes the set in writing.
Call 1-877-775-4381 · battery specialists, not a call centerWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov (State of California only).
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