SKU	ESF631-TN-E
Type	Surge Filter / Surge Protective Device (SPD)
Brand	Eaton
Color	Black
Model	ESF631-TN-E
Notes	Design performance quoted for specified test waveforms (8/20 µs) and coordination levels. Enclosed product variant indicated in model title.
Phase	Single-phase
Weight	6 kg
Category	Power and Rack Equipment
Features	Current-limited output via air-wound inductors; low let-through voltage; reduces risk of RCD/ELCB nuisance tripping when installed upstream of RCD/ELCB; available for TN & TT systems; 50A to 80A model range (series capability)
Imax L-N	100 kA
Imax N-E	50 kA
Enclosure	Enclosed (IP54 option)
SPD Ports	2-port
Application	Point of entry, distribution board and sub-board surge protection; protecting downstream UPS, rectifiers and industrial equipment
Description	Eaton ESF631-TN-E is a Class II, single-phase surge filter / surge protective device (SPD) designed for point-of-entry, distribution board and sub-board protection. This enclosed unit (IP54 option) uses UL1449 edition 3 certified thermally-fused MOVs and air-wound inductors to provide current-limited outputs with exceptionally low let-through voltage (<600 V @ 3 kA, 8/20 µs; <800 V @ 50 kA, 8/20 µs). The 2-port SPD provides two-mode protection (L-N and L-E & N-E), high per-phase capability (100 kA Imax L-N, 50 kA Imax N-E), and nominal attenuation of 48 dB above 1 MHz while filtering line harmonics, noise and RF (cut-off <10 kHz). Suitable for TN and TT systems, the ESF series is coordinated to ANSI/IEEE C62.41 Category B levels for protection of medium-power LV loads.
Form Factor	Enclosed (gear-tray versions also available for switchboard installation)
Sub-Category	Power Equipment
Product Title	Eaton ESF631-TN-E 1-Phase 63A Enclosed Surge Filter / SPD (100kA L-N, 50kA N-E)
Current Rating	63 A
Nominal Voltage	220-250 V
Protection Modes	L-N; L-E & N-E
EMI/RFI Attenuation	48 dB (nominal above 1 MHz)
Let-through Voltage	<600 V @ 3 kA (8/20 µs); <800 V @ 50 kA (8/20 µs)
Operating Temperature	-10 to 65 °C
Dimensions (W x D x H)	240 mm x 220 mm x 520 mm
Manufacturer Part Number	ESF631-TN-E
Certification / Standards	UL1449 edition 3 (thermally-fused MOVs); coordinated to ANSI/IEEE C62.41 Category B
Filtering Cut-off Frequency	<10 kHz
Operating Relative Humidity	10% to 90%

Eaton Powerware ESF631-TN-E Surge Filter, 63A, 1PH, 100KA, TN, Enclosed is a supplier-matched product available from Spot IT. Use this item for compatible business, office, and IT requirements. Manufacturer part number: PW89038. Order online for Australia-wide delivery with local support.