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3VTN460-277 | Crompton 3-Phase Voltage Transformer 2.31:1 Turns Ratio
- Regular price
- $885.00
- Sale price
- $885.00
- Regular price
-
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Product Description P/N: 3VTN460-277
Description
The Crompton 3VTN460-277 is a three-phase voltage transformer engineered for precise line-to-neutral voltage reduction in power monitoring and protection systems. With a 2.31:1 turns ratio and a standard 277 V to 120 V output, it delivers accurate and stable voltage transformation for metering and instrumentation applications. Built for durability, it maintains performance across demanding electrical environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Crompton |
| Category | Transformers |
| Part Number | 3VTN460-277 |
| Subcategory | 3-Phase Voltage Transformer |
| Frequency | 60 Hz |
| Line-to-Neutral Voltage Rating | 277:120 V |
| Turns Ratio | 2.31:1 |
| Accuracy Class (per phase) | 0.6 W, 1.2 X at 60 Hz |
| Insulation Level | 600 V, 10 kV BIL full wave |
| Thermal Rating (per phase) | 150 VA at 30°C; 100 VA at 55°C |
| Primary Fuse (Recommended) | 2.0 A |
| Secondary Protection (Recommended) | 1.6 A BBS type fuse |
| Construction | Resin-encapsulated core and coil in thermoplastic housing |
| Terminals | No. 6-32 screw terminals with washers |
| Design | Three transformers in one case |
| Mounting | Panel/industrial installation |
| Application | Voltage metering, protective relaying, monitoring |
Information About 3VTN460-277
The 3VTN460-277 belongs to Crompton’s family of three-phase potential transformers, designed as an integrated assembly containing three matched transformer elements within a single enclosure. It is insulated to a 600-volt, 10 kV BIL rating and features resin-encapsulated coils inside a thermoplastic case for enhanced mechanical and environmental protection. Primary and secondary terminations use No. 6-32 screw connections with lockwashers and flat washers, allowing secure panel installation. Typical applications include voltage metering, monitoring, and protective relay circuits requiring accurate line-to-neutral voltage transformation in 277/480-volt systems.
Key Features:
- Three-phase transformer assembly: Integrates three voltage transformers in one enclosure.
- 2.31:1 turns ratio: Converts 277 V line-to-neutral to 120 V secondary.
- High insulation rating: 600 V insulation level with 10 kV BIL.
- Resin-filled thermoplastic case: Provides robust protection for core and coil assemblies.
- Accurate metering performance: 0.6 W / 1.2 X accuracy class at 60 Hz.
- Standard screw terminals: No. 6-32 terminals with washers for secure electrical connections.
- Thermal rating per phase: 150 VA at 30°C ambient / 100 VA at 55°C ambient.
- Designed for line-to-neutral operation: Suitable for grounded 3-phase systems.
The 3VTN460-277 delivers the reliability and precision required for voltage metering and monitoring in electrical distribution systems.
Description
The Crompton 3VTN460-277 is a three-phase voltage transformer engineered for precise line-to-neutral voltage reduction in power monitoring and protection systems. With a 2.31:1 turns ratio and a standard 277 V to 120 V output, it delivers accurate and stable voltage transformation for metering and instrumentation applications. Built for durability, it maintains performance across demanding electrical environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Crompton |
| Category | Transformers |
| Part Number | 3VTN460-277 |
| Subcategory | 3-Phase Voltage Transformer |
| Frequency | 60 Hz |
| Line-to-Neutral Voltage Rating | 277:120 V |
| Turns Ratio | 2.31:1 |
| Accuracy Class (per phase) | 0.6 W, 1.2 X at 60 Hz |
| Insulation Level | 600 V, 10 kV BIL full wave |
| Thermal Rating (per phase) | 150 VA at 30°C; 100 VA at 55°C |
| Primary Fuse (Recommended) | 2.0 A |
| Secondary Protection (Recommended) | 1.6 A BBS type fuse |
| Construction | Resin-encapsulated core and coil in thermoplastic housing |
| Terminals | No. 6-32 screw terminals with washers |
| Design | Three transformers in one case |
| Mounting | Panel/industrial installation |
| Application | Voltage metering, protective relaying, monitoring |
Information About 3VTN460-277
The 3VTN460-277 belongs to Crompton’s family of three-phase potential transformers, designed as an integrated assembly containing three matched transformer elements within a single enclosure. It is insulated to a 600-volt, 10 kV BIL rating and features resin-encapsulated coils inside a thermoplastic case for enhanced mechanical and environmental protection. Primary and secondary terminations use No. 6-32 screw connections with lockwashers and flat washers, allowing secure panel installation. Typical applications include voltage metering, monitoring, and protective relay circuits requiring accurate line-to-neutral voltage transformation in 277/480-volt systems.
Key Features:
- Three-phase transformer assembly: Integrates three voltage transformers in one enclosure.
- 2.31:1 turns ratio: Converts 277 V line-to-neutral to 120 V secondary.
- High insulation rating: 600 V insulation level with 10 kV BIL.
- Resin-filled thermoplastic case: Provides robust protection for core and coil assemblies.
- Accurate metering performance: 0.6 W / 1.2 X accuracy class at 60 Hz.
- Standard screw terminals: No. 6-32 terminals with washers for secure electrical connections.
- Thermal rating per phase: 150 VA at 30°C ambient / 100 VA at 55°C ambient.
- Designed for line-to-neutral operation: Suitable for grounded 3-phase systems.
The 3VTN460-277 delivers the reliability and precision required for voltage metering and monitoring in electrical distribution systems.