Westinghouse DS/DSL series low-voltage power circuit breakers
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作者:FAN
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发布时间 :2025-11-13
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192 次浏览:
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Voltage and current voltage range 208-600Vac, continuous current 50-4000A DSL series supports up to 600Vac, sensors can be replaced to adapt to different current levels
Breaking capacity DS series 30000-65000A; DSL series 200000A DSL relies on built-in current limiting components to enhance breaking capacity, suitable for high short-circuit current scenarios
Amptector II-A (standard type) and Amptector I-A (with grounding protection) solid-state trip units with adjustable parameters, high repeatability, and no mechanical wear
Operation modes: manual (spring energy storage), electric (motor energy storage+remote control). The electric type supports emergency manual energy storage to deal with control power failures
Installation forms include drawer style (mainstream) and fixed drawer style, which support four working positions for extraction, disconnection, testing, and connection, making maintenance convenient
Environmental adaptability operating temperature -20~+40 ℃, humidity ≤ 95% (no condensation). Keep away from dust and corrosive gases to avoid insulation aging
DSL series current limiting element fuse 1. Short circuit current exceeds the breaking capacity of the circuit breaker; 2. Aging of current limiting components; 3. The trip unit did not operate. 1. Investigate the short circuit fault and reduce the short circuit current; 2. Replace the current limiting component (requires original factory accessories); 3. Calibrate the trip unit to ensure normal operation
Contact heating and discoloration: 1. Loose wiring; 2. Insufficient contact pressure; 3. Contact oxidation and erosion; 4. Overload operation: 1. Re tighten the wiring and apply conductive paste; 2. Replace the contact pressure spring; 3. Polish or replace the contacts; 4. Reduce load and avoid overload
