New York, USA

This project involved the production and assembly of two switchboards for a US energy company, fully compliant with IEEE C57.148. Thanks to thermal insulation in the enclosure, heating costs are reduced and the switchgear remains reliable even in freezing conditions.

• Supply Voltage: 240/120 VAC 60Hz
• Control Voltage: 129 VDC
• Rated Current: 60A
• Standard: USA
• Ingress Protection: IP55
• Corrosion Protection: C4
• Operating Temperature Range: –25°C to +40°C
• Implementation Date: October 2019

• Dimensions: 1400mm x 1800mm x 680mm
• Type: RSB-ZN – universal free-standing steel housing with epoxy primer, IP66
• Colour: Internal: RAL9003_GS; External: 5BG7.0/0.4
• Manufacturer: Radiolex
• Model: 126-063.034 – RSB-ZN 18001400680 – Switchgear housing

• NF22E-13 – Contactor 2NO/2NC 6A 230V AC/DC
• AF 26-30-00-13 – Power contactor 26A 3P 11kW 100-250V AC/DC
• CA5-31M – Auxiliary contact block 2NO 2NC
• TEF4-OFF – Time relay 1Z 1R turn-off delay
• XT1 125A TMF 60A FF – Molded case circuit breaker 125A, fixed threshold 60A
• S502-K32 – 32A circuit breaker with adjustable thermal trip for motor protection

• Oil level indicator
• Resistance thermometers (oil and ambient)
• Oil temperature indicator TR6000
• Pressure equalization device
• Rapid pressure build-up relay
• Hold relay
• Electronic temperature monitor IED509
• Current transformer 10A

• KTO011 – Thermostat 1NC, 0 to +60°C
• ZR-011 – Thermostat 1NC, 0 to +60°C
• FF018 – Fan with filter 120VAC
• LED025 – LED lamp 5W 100-240V
• HG140 – Semiconductor heater AC/DC 110-250V, 100W

• EB25 – Terminal blocks 30A 6P and 12P
• EB27 – Terminal strip with cover 30A 6P

• T0-2-8221/E – Cam switch 1-2 20A 2P
• T0-1-8200/E – Cam switch 0-1 20A 1P
• T0-5-8270/E – Cam switch 1-2-3 20A 3P

• Marathon series 142 – 2P and 3P terminal blocks
• States 20K02-D – Current test switch
• Agastat 7012PD – 50s 240VAC time relay
• Hubbell GF5262IA – Double socket 15A 125V AC
• Lovato KXCBS11 – Limit switch