Overview
The Schrader Bellows AT-A903 B341-001 is a Phase 1 control transformer engineered for industrial and commercial applications requiring stable, regulated voltage conversion. With a 10VA capacity, 115V AC primary, and 10.8V secondary output, this autotransformer delivers dependable performance in control circuits, pilot circuits, and auxiliary power applications. The AT-A903 series represents a proven design used across manufacturing, HVAC, and process control installations.
Key Features
- 10VA power rating for reliable control circuit operation
- 115V AC primary to 10.8V secondary conversion
- Phase 1 (single-phase) design for standard industrial networks
- Compact form factor for easy installation in control panels
- Proven Schrader Bellows industrial-grade construction
Technical Specifications
- Part Number: B341-001
- Model: AT-A903
- Power Rating: 10VA
- Primary Voltage: 115V AC
- Secondary Voltage: 10.8V AC
- Phase: Single Phase (Phase 1)
- Transformer Type: Control / Autotransformer
- Typical Applications: Control circuits, pilot circuits, auxiliary power supply
Typical Applications
The AT-A903 B341-001 is commonly used in:
- Industrial control panel auxiliary power
- HVAC and refrigeration control circuits
- Manufacturing equipment pilot circuits
- Process automation low-voltage supply
- Commercial building automation systems
Compatibility & Replacements
Compatible With
- Standard 115V AC industrial power distribution systems
- Single-phase 60 Hz electrical networks
- Low-voltage control relay circuits (24V and below)
- Industrial automation control panels
Replaces / Drop-In Replacement For
The B341-001 may serve as a replacement for other Schrader Bellows Phase 1 control transformers rated at 10VA with 115V primary input. Verify compatibility with your system integrator before ordering to ensure electrical specifications match your application requirements.
Works With
- Standard industrial 115V AC input sources
- Relay logic and PLC auxiliary power circuits
- HVAC control systems and thermostats
- Building automation and energy management platforms
