SAFETY & CONTROLS · EMERGENCY DRIVER COLLECTION

constNT

Emergency battery backup drivers for every fixture family in the ALG line. UL 924 listed. Multi-input 120–347 VAC. 20 active driver SKUs across 3 install tiers and 8 verticals. Optional /AG rcticGuard cold-pack, /XD extended-discharge, and /CL networked-test adders for environment-specific requirements.

UL 924 LISTED 120-347 VAC INPUT 90-MIN RUNTIME 5-YEAR WARRANTY NLC-READY VIA /CL
20 Active Driver SKUs
4 Install Tiers
8 Verticals Served
UL 924 Listed (Not Recognized)
20 Active Drivers
4 Install Tiers
8 Verticals
UL 924 Listed (Not Recognized)
5-YR Limited Warranty
−4°F With /AG ⒶrcticGuard
All Drivers

20 drivers. One ecosystem.

Showing 20 drivers
FACTORY · LOW-POWER · PRO PRO
EM07-CMB/150DC
EM07-CMB/150DC
7W · 150Vdc · low-power CMB UL 924
VIEW →
FACTORY · LOW-POWER · PRO PRO
EM07-CMB/260DC
EM07-CMB/260DC
7W · 90–260Vdc · low-power CMB UL 924
VIEW →
FACTORY · LOW-POWER · PRO PRO
EM08-AMB/48DC
EM08-AMB/48DC
8W · 48Vdc · low-power AMB UL 924
VIEW →
FACTORY · MID-POWER · PRO PRO
EM20-CMB/260DC
EM20-CMB/260DC
20W · 90–260Vdc · /AG ready UL 924
VIEW →
FIELD · LOW-POWER · PRO PRO
EM08-HMB/170DC
EM08-HMB/170DC
8W · 170Vdc · low-power HMB UL 924
VIEW →
FIELD · LOW-POWER · PRO PRO
EM08-MT/150DC
EM08-MT/150DC
8W · 150Vdc · low-power MT UL 924
VIEW →
FIELD · LOW-POWER · PRO PRO
EM08-YTB/60DC
EM08-YTB/60DC
8W · 60Vdc · low-power YTB UL 924
VIEW →
FIELD · MID-POWER · PRO PRO
EM15-HMB/170DC
EM15-HMB/170DC
15W · 170Vdc · mid-power HMB UL 924
VIEW →
FIELD · MID-POWER · PRO PRO
EM15-PMB/120AC
EM15-PMB/120AC
15W · 120Vac · /CL ready UL 924
VIEW →
FIELD · MID-POWER · PRO PRO
EM20-HMB/135AC
EM20-HMB/135AC
20W · 135Vac · tubular AC-output UL 924
VIEW →
FIELD · MID-POWER · PRO PRO
EM25-HMB/170DC
EM25-HMB/170DC
25W · 170Vdc · mid-power HMB UL 924
VIEW →
FIELD · MID-POWER · PRO PRO
EM25-PMB/120AC
EM25-PMB/120AC
25W · 120Vac · /CL ready UL 924
VIEW →
FIELD · HIGH-POWER · PRO PRO
EM30-UMB/170DC
EM30-UMB/170DC
30W · 170Vdc · external /U chassis UL 924
VIEW →
FIELD · HIGH-POWER · PRO PRO
EM40-RMB/170DC
EM40-RMB/170DC
40W · 170Vdc · /CL ready · lamparⒶRCH UL 924
VIEW →
FIELD · HIGH-POWER · PRO PRO
EM60-GMB/170DC
EM60-GMB/170DC
60W · 170Vdc · lamparⒶRCH high-bay UL 924
VIEW →
FIELD · HIGH-POWER · PRO PRO
EM60-UMB/170DC
EM60-UMB/170DC
60W · 170Vdc · external /U · warehouse UL 924
VIEW →
QUICK · MID-POWER · PRO PRO
EM20-CMB/150DC
EM20-CMB/150DC
20W · 150Vdc · J-Box CMB UL 924
VIEW →
QUICK · MID-POWER · PRO PRO
CRCU-EM24/JBM
CRCU-EM24/JBM
24W · 190Vdc · J-Box mount UL 924
VIEW →
QUICK · MID-POWER · PRO PRO
CRC6-EM24/JBS/B
CRC6-EM24/JBS/B
24W · 190Vdc · black · J-Box surface UL 924
VIEW →
QUICK · MID-POWER · PRO PRO
CRC6-EM24/JBS/W
CRC6-EM24/JBS/W
24W · 190Vdc · white · J-Box surface UL 924
VIEW →
Optional Adders

Three adders. Infinite application range.

/AG
rcticGuard

Extends operating range to −4°F (−20°C). Required for cold-storage, outdoor unconditioned, and process-extreme environments. Lithium-ion chemistry with stable charge through seasonal temperature swings.

/XD
Extended Discharge

120-minute runtime (vs. standard 90-min). Required for NFPA 101 high-occupancy egress paths, healthcare life-safety circuits, and jurisdictions with extended egress requirements.

/CL
constNTLink

SILVAIR mesh-networked auto-test and reporting. Title 24 NLC-compliant. Eliminates manual test logs. Integrates with BACnet/IP gateways for BMS reporting. Required for California Title 24 NLC compliance.

Legacy Products

Discontinued drivers.

Some earlier emergency-driver SKUs have been discontinued. Replacement recommendations are available — contact your rep or distributor for guidance.

Get notified of replacements →
Get Started

Ready to specify?

Request a Layout

Send us your floor plan. We'll spec the right constNT driver for each fixture zone, including adder recommendations for cold, extended-runtime, or networked-test requirements.

Start layout →
Request a Sample

Evaluate a constNT driver in your facility before committing to a full project. Sample requests ship within 3 business days from our nearest warehouse.

Request sample →
Find a Distributor

Find a stocking distributor near your project site. All 12 US warehouses carry core constNT SKUs.

Find distributor →
Talk to Applications Engineering

Spec-grade questions on UL 924, NFPA 101 testing schedules, /CL deployment, or /AG cold-zone application. 1-business-day response.

Email the team →
COMPATIBILITY · FIXTURE FAMILIES

constNT pairs with every ALG fixture family.

Every constNT driver lists its compatible fixture family. Factory-install drivers ship pre-tested with the host fixture. Field-install drivers are universal across the line. Quick-Install J-Box drivers retrofit occupied buildings without ceiling teardown.

SAFETY & CONTROLS OVERVIEW →