Service-Entrance Rated Switchgear
Utility-coordinated service entrance equipment with revenue metering cubicles and ESA-accepted layouts. Main and tie breaker configurations with protection relay packages for the utility point of delivery.
The Utility Interface, Engineered Right
Service entrance switchgear is the critical interface between the electrical utility and your facility. Our service entrance lineups are designed with the utility interface protection, revenue metering, and inspection access that ESA and local utilities require — with coordination studies included.
- Main and tie breaker with ground fault protection
- Revenue metering cubicles with CT/PT compartments
- Utility interface protection: 27/59 (voltage), 81 (frequency)
- ESA and authority-having-jurisdiction (AHJ) accepted layouts
- Coordination studies and relay setting documentation
- As-built drawings and factory test reports included
What's Included
- Main breaker / tie breaker with ground fault protection (ANSI 50G/51G)
- Revenue metering cubicle — lockable CT/PT sections
- Voltage and frequency relay (ANSI 27/59/81) for utility interface
- ESA and AHJ-accepted layout drawings
- Utility nameplate and inspection access per requirements
- Interlocked sequence of operations (main/tie)
- Sealable compartment windows for meter reading without de-energizing
- Manual or motorized main breaker operation
- Full-height walk-in sections for large installations
- +Arc-flash study with PPE category labels
- +Witnessed factory acceptance testing (FAT) with test reports
- +Remote annunciation and SCADA communication gateway
- +On-site commissioning and utility protection relay setting
- +Power quality analyser (flicker, harmonics, unbalance)
- +Utility coordination study and submission package
- +Standby generator interface (paralleling breaker/relay)
- +Automatic bus transfer (ABT) scheme
Full Specifications
| Parameter | Value |
|---|---|
| Voltage Class | LV (600 V) through MV (up to 29 kV) |
| Main Breaker Rating | Site-specific (utility requirement dependent) |
| Metering | Revenue-grade: Class 0.2S CT/PT, ANSI C12 meters |
| Utility Protection | ANSI 27/59 (voltage), 81 (frequency), 50/51 (overcurrent) |
| Metering Access | Lockable, sealable; utility inspector access without de-energizing |
| Bus Material | Copper; silver-plated contact surfaces |
| Enclosure | NEMA 1 or custom to utility specification |
| Compliance | CSA C22.2, ESA, utility service requirements |
| Documentation | As-built drawings, test reports, relay setting record |
| Lead Time | 8–14 weeks from drawing approval |
Built to Standard
Where It's Used
- Utility service entrance for industrial facilities
- Commercial building service entrance at 27.6 kV or 4.16 kV
- Data centre utility interface and main distribution
- Hospital service entrance with utility coordination
- Municipal and government building service entrances
- Renewable energy facility utility interconnection
- Mining portal substations — utility point of delivery
- Multi-tenant commercial and industrial campuses
From design and specification through factory testing, commissioning, and ongoing maintenance — Candron delivers at every phase.
- Engineering drawings and coordination studies
- Factory acceptance testing (FAT) with full reports
- Site commissioning and protection settings
- Spare parts, training, and maintenance support
Common Questions
The Ontario Electrical Safety Authority (ESA) must approve electrical equipment installed in Ontario. For service entrance switchgear, this means the layout, labeling, metering access, and protection relay settings must meet ESA requirements and be accepted by the local authority having jurisdiction (AHJ) before energization.
Yes — we provide relay coordination studies and setting files, and our team can interface directly with the utility (Hydro One, Alectra, and others) to obtain protection setting approvals as part of the project scope.
We provide a complete documentation package: as-built drawings, relay setting records, CT/PT test reports, primary injection test results, insulation resistance records, and a commissioning sign-off checklist — formatted for utility inspection.
Ready to Spec
Your Project?
Our engineering team responds with specs, lead times, and pricing the same day. Tell us what you need:
- Utility name and service voltage class
- Required CT/PT ratios and metering accuracy class
- Main breaker type (ACB, VCB) and rating
- Protection relay functions and SCADA protocol
- Indoor or outdoor; single or double-ended
- Timeline and local AHJ coordination required
Send us your project details and we'll respond with a price, lead time, and any clarifying questions — typically within a few hours.
Request a Quote →Or call us directly