TDX400S277/480

TDX400S277/480 is a modular TDX panel protector. It has built-in features including TD technology, thermal protection, short circuit current cartridge fusing and a surge counter. The status indication flag per mode, voltage presence LEDs, audible alarm, and voltage-free contacts provide remote status monitoring. It features a 300kA 8/20μs maximum surge rating and provides protection suitable for service entrance, main-distribution panels and highly exposed applications. Complies with ANSI®/IEEE® C62.41.2-2002, scenario II, exposure 3, 100KA 8/20μs, 10KA 10/350μs IEC® 61643-1 class I, class II. UL® 1449 Edition 5 type 1/2, 20kA mode certification.

• Transient discriminating technology provides increased service life
• Modular design allows easy replacement of surge modules
• 277/480V nominal system voltage, 3Ph 4W+G distribution system, 50 to 60Hz frequency range
• 320/550VAC max continuous operating voltage, 480/831VAC stand-off voltage
• TD technology with thermal disconnect over-current replaceable cartridge fusing
• Surge counter, L-N, L-PE, N-PE protection mode, LED mechanical flag audible alarm status indication
• Remote contacts, #10 lead size, 30" lead length, 36" ground lead length
• 3/4” straight nipple mounting, IP20 NEMA®-1 enclosure rating, metal enclosure material
• 3-1/4" depth, 10.320" width, 10.400" height
• Temperature range from -40 to 176°F