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C&D Technologies SGC12-90 Battery, 12V 90AH AGM Switchgear
C&D Technologies SGC12-90 Battery, 12V 90AH AGM Switchgear
C&D Technologies SGC12-90 Battery - 12V 87.6 Ah Switchgear and Control AGM
Warranty
The Rating Behind the Model Name
- Float 13.5 to 13.8 VDC per unit - the published average at 77°F (25°C); equalization and cycle service charging sit at 14.4 to 14.8 VDC per unit at the same temperature.
- Molded-in terminal bushing - the bushing is molded into the cover and the case-to-cover bond is thermally welded, which is how C&D gets a hermetic seal on a jar this size.
- Thick positive grids and a high-temperature alloy - C&D credits the series' high temperature performance and longer life to thick positive grids and its grid alloy.
- UL1778, UL924, UL1989 and UL94 - the compliance set C&D lists for the SGC series, on a UL recognized component.
- Cleared for all three transport modes - IATA/ICAO Special Provision A67 by air, non-hazardous under DOT 49 CFR parts 171-189 by surface, and IMDG exception 238 by water.
Technical Specifications
| C&D SGC12-90 Specifications | |
|---|---|
| Part Number | SGC12-90 (also searched as SGC 12-90 and SGC1290; C&D prints the part as SGC 12-90, and the 90 is the model designation, not the rated capacity) |
| Series | SGC switchgear and control, top terminal |
| Battery Type | AGM, valve regulated lead acid (VRLA), gas recombination of 99 percent plus |
| Nominal Voltage | 12V (6 cells per unit) |
| Nominal Capacity | 87.6 Ah at the 8-hour rate to 1.75 VPC at 77°F (25°C) |
| Constant Current to 1.75 VPC | 331.1 A at 1 min, 159.4 at 15 min, 102.3 at 30 min, 60.0 at 1 hr, 34.8 at 2 hr, 25.0 at 3 hr, 19.8 at 4 hr, 16.2 at 5 hr, 11.0 at 8 hr, 7.8 at 12 hr |
| Constant Current to 1.80 VPC | 273.7 A at 1 min, 145.1 at 15 min, 92.6 at 30 min, 57.0 at 1 hr, 10.6 at 8 hr |
| Constant Current to 1.85 VPC | 234.6 A at 1 min, 130.1 at 15 min, 85.5 at 30 min, 53.3 at 1 hr, 10.1 at 8 hr |
| Constant Current to 1.90 VPC | 185.9 A at 1 min, 115.2 at 15 min, 78.8 at 30 min, 49.5 at 1 hr, 9.5 at 8 hr |
| Maximum Discharge Current | 800 A |
| Short Circuit Current | 3,600 A at 0.1 second |
| Impedance | 0.0035 ohms at 60 Hz |
| Terminal Type | Top terminal, threaded copper alloy insert, 1/4-20 UNC by 3/4 inch screws |
| Terminal Torque | 110 in-lbs (12.4 N-m) |
| Length | 13.42 inches overall, 12.75 inches across the case body |
| Width | 6.80 inches overall, 6.54 inches across the case body |
| Height | 8.40 inches to the cover, 8.52 inches overall |
| Weight | 74.5 lbs (33.8 kg) |
| Float Charging Voltage | 13.5 to 13.8 VDC per unit average at 77°F (25°C) |
| Equalization Charging Voltage | 14.4 to 14.8 VDC per unit average at 77°F (25°C) |
| Maximum Charging Current | C/5 amperes at the 20-hour rate |
| Operating Temperature | Discharge -40°F to +160°F (-40°C to 71°C); charge -10°F to +140°F (-23°C to 60°C); normal +74°F to +80°F (23°C to 27°C) |
| Standards | UL recognized component; UL1778, UL924, UL1989, UL94; case and cover UL94 V-0, limiting oxygen index >28 |
| Transport | IATA/ICAO Special Provision A67 by air; non-hazardous under DOT 49 CFR parts 171-189 by surface; IMDG exception 238 by water |
| Rack Systems | RBW1T (48V, 4 jars, 1 tier) and RBW2T (120V, 10 jars, 2 tiers); RBW1TEQ and RBW2TEQ in seismic zones 1 to 4 |
| Design Life | No published figure on C&D's 2022 SGC datasheet |
| Warranty | 2 years full replacement (C&D Form RS02051, SGC series) |
| Minimum Order | 4 units |
Where This Battery Is Used
- Switchgear lineups and relay houses - the DC control bus that closes and trips breakers, held on float between operations.
- Battery change-out trucks - the mobile service application C&D names for the series, where the jar gets handled far more often than a fixed bank.
- Offshore platforms and process plants - control power in enclosures where a flooded bank would need ventilation the space does not have.
Ordering and Freight
Frequently Asked Questions
Is the SGC12-90 an 87.6 Ah battery or a 90 Ah battery?
87.6 Ah, measured at the 8-hour rate to 1.75 volts per cell at 77°F. The 90 is the model designation. C&D's own capacity table prints 87.6 for this jar and the constant-current row backs it out at 11.0 amps for eight hours. Size the bank on 87.6 and the worksheet matches the manufacturer's data when somebody checks it.
What does an SGC12-90 deliver on a one-minute breaker close?
331.1 amps to 1.75 volts per cell at 77°F, against an 800 amp maximum discharge current for the jar. Close coils and spring-charging motors draw hard and briefly, so the one-minute and fifteen-minute columns decide the bank size before the amp-hour headline does. Send the coil inrush and the duty cycle the substation standard calls for and a specialist reads the jar count off the table.
Will an SGC12-90 drop into a cabinet cut for the SGC12-70?
Only if the cut has room to spare. The 90 is 13.42 inches long against the 70's 10.26, 8.52 inches tall against 8.01, and 74.5 lbs against 55.8. The width is close, 6.80 against 6.83. So the depth of the shelf is usually fine and the length is what stops the swap, with the shelf rating worth a second look at nineteen extra pounds per jar.
Does the SGC12-90 use the same terminal screw as the SGC12-70?
Yes. C&D specifies a 1/4-20 UNC by 3/4 inch screw into a threaded copper alloy insert at 110 in-lbs (12.4 N-m) for the SGC 12-70, 12-80, 12-90 and 12-125. Only the two small jars in the line, the 12-30 and the 12-45, use the 10-32 UNF screw at 25 in-lbs. Existing cable lugs and hardware carry across when you move up within the larger group.
Send the quantity, your delivery ZIP and your requested-by date. A specialist confirms availability, the warranty term, volume pricing and freight in writing, with no obligation to buy.
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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