Extended runtime — external battery expansion

APC SMX3000 —
Quote, Battery & Service Canada

Q: SMX3000 vs SMT3000: what is the difference?

Same capacity (3000 VA / 2700 W) and topology. The critical difference: the SMX3000 accepts external battery packs to extend runtime from minutes to hours. The SMT3000 cannot.

Q: How many external battery packs can I add?

Up to 10 SMX48RMBP2U packs. Practically, 1 pack gives about 45 minutes at half load, 2 packs about 75 minutes, 4 packs over 2 hours.

Q: Is the SMX3000 rack-mountable?

Yes. Convertible design with rack ears for 2U installation and tower feet. External packs are also 2U each. A typical setup with 2 external packs occupies 6U.

Q: When should I choose SMX vs SRT for extended runtime?

SMX is line-interactive (less than 4 ms transfer) and costs less. For standard servers, networking, and telecom, it provides excellent protection. For sensitive loads where any transfer time is unacceptable, the SRT with online double-conversion is required.

Q: What battery does the SMX3000 use internally?

The APC RBC143, a high-rate battery cartridge specific to the Smart-UPS X platform. Hot-swappable without shutting down the load. External packs connect via the rear panel battery connector.

The APC Smart-UPS X 3000VA (SMX3000LVNC) delivers 2700 W of pure sine-wave power with the critical advantage the SMT line lacks: external battery expansion. Add SMX48RMBP2U or SMX120BP packs to extend runtime from minutes to hours — the go-to choice for edge computing and remote sites without generator backup.

Request SMX3000 Quote Full Specs

APC Service Canada is an independent service provider — not affiliated with APC by Schneider Electric®

Technical Specifications

APC SMX3000 — Smart-UPS X 3000VA

SMX3000 Specifications
Output capacity	3000 VA / 2700 W
Topology	Line-interactive, pure sine wave
Form factor	Convertible rack 2U / tower
Input voltage	120V, 50/60 Hz auto-sensing
Output voltage	120V (configurable)
Output connections	10 × NEMA 5-15R / 5-20R
Runtime at half load	~18 minutes internal (1350 W)
Runtime at full load	~6 minutes internal (2700 W)
Extended runtime	SMX48RMBP2U (48V, 2U) or SMX120BP (tower)
Transfer time	< 4 ms typical
Management	LCD, USB, serial, SmartSlot (NMC3 optional)
Weight	~32 kg with battery
Warranty	3-year APC / extended available

Replacement Battery

Battery for SMX3000

🔋 APC RBC143 + External Packs

The SMX3000 internal battery uses the APC RBC143 cartridge. The real advantage of the SMX platform is external battery expansion: add SMX48RMBP2U (rack, 2U each) or SMX120BP (tower) packs to multiply runtime.

Runtime with 1 external pack: ~45 minutes at half load (1350 W). With 2 packs: ~75 minutes. With 4 packs: ~2+ hours. This is the key differentiator vs the SMT3000, which cannot accept external batteries.

Sizing help: Tell us your load (watts) and target runtime, and we’ll calculate the exact number of external packs needed. No guesswork.

Quote RBC143 + External Packs

✅ Best for

Edge computing and remote sites without generators
Branch offices needing 30–120 min runtime
Telecom cabinets and relay stations
Critical network infrastructure
Any deployment where extended runtime matters more than online topology

Request a Quote

SMX3000 quote — UPS, batteries, external packs, installation

APC SMX3000 Quote Request

Quote back within one business day. We size the external battery complement for your runtime target.

Include in your email:

What you need: new SMX3000 / RBC143 battery / external SMX48RMBP2U or SMX120BP pack(s) / installation
Rack (2U) or tower configuration?
Target runtime and total load (watts)
Quantity, postal code, timeline

✉ Email SMX3000 Quote ☎ Call 1 (438) 881-3363

Or email directly: info@apcservicecanada.com · Quote back within 1 business day

Related Models

Compare extended-runtime options

SMT3000

3000 VA / 2700 W
No external battery option
Battery: RBC55

SMX3000 ✔

3000 VA / 2700 W
Extended runtime via ext packs
Battery: RBC143

SRT5000

5000 VA / 4500 W
Online + extended runtime
Battery: RBC152

FAQ

SMX3000 questions

SMX3000 vs SMT3000 — what is the difference? ▼

Same VA/W capacity (3000 VA / 2700 W), same line-interactive topology, same pure sine wave output. The critical difference: the SMX3000 accepts external battery packs (SMX48RMBP2U or SMX120BP) to extend runtime from minutes to hours. The SMT3000 cannot. If you need more than ~14 minutes of runtime at half load, the SMX3000 is the right choice.

How many external battery packs can I add? ▼

Up to 10 SMX48RMBP2U packs (rack, 2U each). Practically, most deployments use 1–4 packs: 1 pack gives ~45 minutes at half load, 2 packs ~75 minutes, 4 packs ~2+ hours. We calculate the exact number based on your load and runtime target.

Is the SMX3000 rack-mountable? ▼

Yes. The SMX3000 is a convertible design — ships with rack ears for 2U installation and tower feet for floor-standing. The SMX48RMBP2U external packs are also 2U each. A typical SMX3000 + 2 external packs occupies 6U of rack space.

When should I choose SMX vs SRT for extended runtime? ▼

The SMX is line-interactive (<4 ms transfer time) and costs less than the SRT (online double-conversion, zero transfer time). For standard servers, networking, and telecom, the SMX with external batteries provides excellent protection at lower cost. For sensitive loads (medical, broadcast, precision) where any transfer time is unacceptable, the SRT is required.

What battery does the SMX3000 use internally? ▼

The APC RBC143 — a high-rate battery cartridge specific to the Smart-UPS X platform. Hot-swappable without shutting down the load. External packs (SMX48RMBP2U) contain their own batteries and connect via the external battery connector on the rear panel.

APC Service Canada is an independent service provider. Not affiliated with APC by Schneider Electric®. All trademarks remain property of Schneider Electric.

APC SMX3000 —Quote, Battery & Service Canada