Overview
The Potter Brumfield KUP-11A55-120 is a rugged, general-purpose electromechanical relay engineered for reliable switching in industrial control panels and automation equipment. Built on the proven KUP series platform, this DPDT (2-form-C) relay delivers stable performance in 120VAC applications with AgCdO silver-cadmium oxide contacts rated for 10A switching capacity.
Key Features
- 2-Form-C (DPDT) contact configuration for double-pole, double-throw switching
- 120VAC coil; 50/60 Hz operation
- AgCdO contacts rated 10A at 120VAC
- Panel plug-in / bracket-mount design with quick-connect terminals (4.75mm / 0.187-inch)
- Class B coil insulation for extended thermal stability
- Compact footprint suitable for control cabinets and industrial panels
Technical Specifications
- Contact Configuration: DPDT (2-Form-C)
- Coil Voltage: 120VAC, 50/60 Hz
- Contact Rating: 10A @ 120VAC; 2VA
- Contact Material: AgCdO (silver-cadmium oxide)
- Coil Insulation Class: Class B
- Mounting: Panel plug-in with bracket mount / quick-connect terminals
- Terminal Type: 4.75mm quick-connect
- Weight: 80 grams
- Series: KUP (Potter & Brumfield)
- Manufacturer: TE Connectivity / Potter & Brumfield
Typical Applications
The KUP-11A55-120 is well-suited for:
- Motor control and pump start/stop circuits
- HVAC and refrigeration automation
- Process control panel switching
- Lighting and emergency circuits
- Industrial machinery interlocks and safety circuits
Compatibility & Replacements
Compatible With
- Standard 120VAC control voltages (industrial control panels)
- General-purpose electromechanical control systems
- DIN rail or panel-mount relay sockets (KU series compatible)
- Legacy and modern industrial automation panels
Replaces / Drop-In Replacement For
- Potter & Brumfield KUP-11A55-120 (original / new stock)
- Compatible with other KUP-series 120VAC DPDT relays in equivalent package
- Verify compatibility with your system integrator before ordering
Works With
- Allen-Bradley control systems and industrial panels
- Siemens SIMATIC automation equipment
- Mitsubishi, Omron, and Schneider control platforms
- Standard relay sockets and DIN mounting systems
- UL / CSA certified industrial control enclosures








