ALCR1277 | Hubbell UL924 emergency automatic load control relay, 100–277 VAC
Hubbell · HMIs & Displays
Description The Hubbell ALCR1277 is a UL924-listed emergency automatic load control relay designed for managing emergency lighting circuits. This part number supports a 100–277 VAC supply range, enabling broad compatibility across lighting systems. Its automatic load-shedding functionality helps maintain illumination of critical emergency fixtures during power loss. Technical Specifications Condition New/Never Used Surplus Brand Hubbell Category Lighting Control Relay Part Number ALCR1277 Subcategory Emergency Load Control Relay Type Automatic load control relay Voltage Supply Range 100–277 VAC Operating Temperature –40°C to 65°C Compliance UL924 Application Emergency lighting load management Function Automatic transfer and load shedding Information About ALCR1277 The ALCR1277 is part of Hubbell’s line of emergency lighting control devices engineered to ensure code-compliant operation during utility power failures. It automatically transfers designated emergency luminaires to a backup power source or removes nonessential loads to preserve available capacity. Designed for wide-temperature operation, it performs reliably in environments ranging from –40°C to 65°C. Typical applications include commercial buildings, egress pathways, stairwells, and any facility requiring UL924-compliant emergency lighting control. Key Features: UL924 Emergency Rated: Ensures compliant function for emergency lighting circuits. Automatic Load Control: Transfers critical lighting loads during power outages. Wide Input Voltage Range: Operates from 100–277 VAC for versatile system integration. Broad Temperature Capability: Functions from –40°C to 65°C for demanding installations. Reliable Load Shedding: Prioritizes essential luminaires to maintain safe illumination. Durable Construction: Built for longevity in commercial and industrial environments. The ALCR1277 delivers the reliability and precision required for dependable control of emergency lighting systems.
Brand: Hubbell · Category: HMIs & Displays
Key features
- UL924 Emergency Rated: Ensures compliant function for emergency lighting circuits.
- Automatic Load Control: Transfers critical lighting loads during power outages.
- Wide Input Voltage Range: Operates from 100–277 VAC for versatile system integration.
- Broad Temperature Capability: Functions from –40°C to 65°C for demanding installations.
- Reliable Load Shedding: Prioritizes essential luminaires to maintain safe illumination.
- Durable Construction: Built for longevity in commercial and industrial environments.
Specifications
| Manufacturer part number | ALCR1277 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Hubbell |
| Category | Lighting Control Relay |
| Part Number | ALCR1277 |
| Subcategory | Emergency Load Control Relay |
| Type | Automatic load control relay |
| Voltage Supply Range | 100–277 VAC |
| Operating Temperature | –40°C to 65°C |
| Compliance | UL924 |
| Application | Emergency lighting load management |
| Function | Automatic transfer and load shedding |
| Product type | UL924 EMERGENCY AUTOMATIC LOAD C |
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