Type | Automatic circuit breaker - plug-in module |
Form Factor | Rack-mountable module |
Weight | 9.48 lbs |
Shipping Weight | 11.46 lbs |
Power Requirements | AC 208 V, 3-phase, 60 Hz |
Max Electric Current | 20 A |
Circuit Protection | Circuit breaker |
Designed For | APC Symmetra PX 10kW to 100kW Scalable Power Systems |
Cables Included | Power cable - integrated - 55 ft |
Features | LCD display, LED indicators |
APC IT Power Distribution Module 3-Pole 20A L21-20, 1680cm

Key Benefits

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- Purpose-built for APC Symmetra PX scalable systems (10kW–100kW), ensuring seamless compatibility
- Integrated remote management enables centralized monitoring and control, reducing maintenance efforts
- Compact design with extended cable and quick module insertion improves deployment flexibility in data centers
Product Overview
The APC IT Power Distribution Module 3 is a plug-in circuit breaker tailored for APC Symmetra PX scalable deployments, offering 3-phase AC 208 V input and output. Featuring a NEMA L21-20 interface and supporting 20 A max current, it also includes SNMP/HTTP remote management, LCD and LED status indicators, and an integrated 55 ft cable. UL and RoHS certified, the module aligns with TAA requirements and is backed by a 1-year limited warranty.
Specifications
Product Overview
Physical & Environmental
Width | 17.5 in |
Depth | 16 in |
Height | 5 in |
Shipping Width | 17.5 in |
Shipping Depth | 16 in |
Shipping Height | 5 in |
Cloud Management & Licensing
Remote Management Protocol | SNMP, HTTP |
Warranty & Support
Manufacturer Warranty | 1-year limited warranty |
Service & Support | Limited warranty - 1 year |
Interfaces
Input Connectors | Power NEMA L21-20 |
Output Connectors | 1 x power NEMA L21-20 |
Power Output Connectors Details | 1 x power NEMA L21-20 |
Input Voltage | AC 208 V |
Output Voltage | AC 208 V |
Input Voltage Range | AC 200 - 240 V |
Input Wiring | 3-phase |
Frequency Required | 60 Hz |
Compliance & Origin
Compliant Standards | UL, RoHS Exemption 7b |
TAA Compliance | Yes |
Country of Origin | United States |
Advanced Security Features
Tamper Resistance | No data |