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SEL-734 and SEL-735 Comparison Chart

Product SEL-734 SEL-734P SEL-735 Basic SEL-735 Intermediate SEL-735 Advanced
Warranty (years)1010 10 10 10
Metering, General
Published Accuracy ANSI C12.20-2002, 0.2 accuracy class; IEC 62053-22:2003, 0.2 accuracy class; IEC 62053-23:2003, 2 accuracy class ANSI C12.20-2015, 0.1 accuracy class; IEC 62053-22:2003, 0.2 accuracy class; IEC 62053-23:2003, 2 accuracy class
Published 0.2% Accuracy Range for CL 20, PF=1 50 mA–20 A 10 mA–22 A
Accuracy Compliance With ANSI C12.20 0.2 Accuracy ClassSuperior accuracy performanceSuperior accuracy performance; 0.1 accuracy class compliance
Load Profile Recorders × Channels1 × 16 12 × 16  1 × 16  1 × 16 32 × 16 
Instrument Transformer Compensation (PT phase angle degrees)–180 to +180 –5 to +5
Voltage Range (L-N) Form 9, Nominal 57–300 V Revenue: 28–300 V; measurement: 5–300 V
Current InputCL10/CL20 option; 0.15–20 A CL2 option; 0.010–6 A Current Class CL2/CL10/CL20, optimized for low-end accuracy; Current Class CL10/CL20, optimized for 100 A fault recording 
Number of Elements (form factor) 2, 3 (Form 5 and Form 9) 2, 3 (Form 5, Form 9, and Form 36)
Bi-directional metering Yes
Temperature Range—Operating –40° to +85°C (–40° to +185°F)
Memory 32 MB 128 MB 128 MB256 MB 1 GB
Power Quality
IEC 61000-4-30 Power Quality No Yes
Individual Harmonic Measurements; Highest Harmonic Yes; 15th Yes; 50th Yes; 15th Yes; 63rd
Harmonic Phase Angles No Yes No No Yes
Variable Event Report Length No Yes No Yes Yes
61000-4-15 Flickermeter No Yes No Yes Yes
Waveform Capture, 6 Channels (V and I) 1 kHz sample rate; 0.25-second report duration; over 60 1 kHz reports captured 1 kHz or 8 kHz sample rate; up to 10-second report duration; 126 1 kHz event reports captured 16 samples/cycle; 0.25-second report duration; over 256 1 kHz event reports captured16 or 128 samples/cycle; up to 10-second report duration; over 6,000 1 kHz event reports capturedFrom 16 to 512 samples/cycle; up to 10-second report duration; over 10,000 1 kHz event reports captured
Synchrophasors Yes, using SEL Fast Message Yes, IEEE C37.118-2011 for models with an Ethernet port
VSSI Recording Yes
IRIG-B Input Yes
COMTRADE Yes
PQDIFF ReportNo
Miscellaneous
Programmable Logic SELogic, 32 elements SELogic, 16 elements
Inherent UTC Offset

Not available

Available

IEC 61850 Protocol

No

Optional on models with Ethernet port

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