Overview
The CBi AD9508 QY-1(13) 20A circuit breaker is a single-pole miniature DC circuit breaker engineered for telecommunications, renewable energy, and industrial control applications. Built for DIN rail or vertical surface mounting, this unit combines compact design with reliable trip performance, making it ideal for equipment requiring thermal-magnetic protection against overloads and short circuits.
Key Features
- Single-pole (1P) configuration for DC circuits
- 20A current rating with adjustable thermal-magnetic trip mechanism
- Compact size: 97 × 13 × 74 mm (L × W × H)
- DIN rail and vertical surface mounting options
- Push-button manual reset and trip operation
- Ambient temperature independent rating capability
Technical Specifications
- Current Rating: 20A DC
- Poles: 1 (Single Pole)
- Rated Voltage: 80V DC typical (verify per application)
- Trip Technology: Hydraulic-Magnetic
- Mounting: DIN Rail, Vertical Surface
- Length: 97 mm
- Width: 13 mm
- Height: 74 mm
- Weight: 0.1 kg
- Manual Operation: Push-button reset
Typical Applications
- Communications equipment and power distribution
- Off-grid solar and renewable energy systems
- Uninterruptible power supply (UPS) circuits
- Industrial control panels and automation
- Battery bank protection in DC distribution
- Marine and vehicle electrical systems
Compatibility & Replacements
Compatible With
- Standard DIN rail TS35 mounting systems
- DC power distribution networks (48V, 80V nominal)
- Solar inverter and charge controller outputs
- Industrial PLC control systems with DC protection requirements
- Telecommunications equipment racks
Replaces / Drop-In Replacement For
- CBi QY-1(13)-DM-U2-20A variants with different suffix codes
- Verify exact compatibility with original equipment documentation before substitution
Works With
- DIN rail-mounted DC distribution components
- Standard DC circuit protection ecosystems
- Hydraulic-magnetic trip coordination charts for series/selective coordination
