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233733Approved Electric Submeters
| Manufacturer | Type Number | Current Transformer |
|---|---|---|
| ABB, Elster | ABS-5, REX-5, AB1, A1D, A1T+, A1RL | |
| ADEC | EMS-8000 | |
| Austin International, Inc. | Vision Watthour Meter V2S, V2SR, V12S, V12SR, V1S, V1SR | |
| Duncan | MK, MQ, MH2, MG2, JH2A, MS, MS-1, 12S, MTNS12S, 16S | |
| E-Mon Corporation | E-MON D-MON Electronic KWH Model 208100 | Not applicable |
| EZ Meter | RGB | |
| General Electric | 130, I50S, I55S, I60 S I-70 watt-hour[1] I70S/A, IM70S/A, IW70S/A, I70S/1, I70S/2 KVS, KV-3PH, KV2, KV2C V 3A,6A,62,65,66,612S, EV, VM-3A,4A,63,64 i210, i210+C, IM70S | |
| Global Power Products (formerly North American Power Products) | VT-2 solid state meter | Not applicable |
| GridGear | GG Solid State Meter | |
| Integrated Metering Systems, Inc. | MMD1202001-SCC MMD1202001 Blue Series 3 phase | CT200148BKSO-0.72 CT200148RDSO-0.72 CT200148BLSO-0.72 CT200148BKSO-0.67 CT200148RDSO-0.67 CT200148BLSO-0.67 |
| Intellimeter Canada Inc. | TX120X00X TX120-X2X | 100A, CTR 2500:1A, Internal PCB Mounted 200A, CTR 2000:1A; externally mounted |
| Landis & Gyr | MS2, MSK, MTNS, MR2S, ML2S, DX MS, MS, MSE, MX, Focus: ALF, AXS4, AXS4e, AXR, AXRSD, E650 S4x | |
| LEVITON | 8106, 8112, 8118, 8124 (100mA) | |
| Sangamo | S-12-S, J5S watt-hour Class 200, 240v | |
| SATEC, Inc. | EM920, EM133, BFM136 | |
| Schlumberger | Centron: C1S and CN1S models (all), Centron Polyphase, Sentinel, J, J2S, J3S, J4S, J5S, SL5S S12S, SL12S, Vectron: SV2S, P20S, P20SU, | |
| Sensus | iCon, iConA | |
| Siemens / L&G | Altimus: AX, AL, ALT, SEM3 | |
| QUADLOGIC | S-20 Socket Meter S-10 In-unit Residential Meter RSM 5 Commercial Meter Minicloset 5 Multi-tenet Meter Minicloset 5c Multi-tenet Meter QBrick6 | |
| Schneider Electric | EM4880 (80mA) | |
| Technology Research Corp. | 18020-001[2], 2-element 120/208 VAC 2 Æ or 120/240 VAC 1 Æ 3-wire, 60HZ with electromechanical counter | 200 amp primary max.[3] 0.2 amp secondary max. |
| Triacta PowerHawk | 6312, 6303 (80mA) | |
| Triacta PowerHawk | 6112, 6103, 4106, 4112, 4118, 4124 (100mA) | |
| United Metering Services (UMS) | Electronic watt-hour[4] meter with electromechanical counter, P/N 22120E, 120/208/240 VAC, 2-element | 200 amp primary max.[5] 0.2 amp secondary |
| Westinghouse | D4S3, D5S3, D4S5U, D2S, C, D, CS, D4S, D4-1 D5S, D5S Network | |
| LEVITON | MSNCT-1SC, MSNCT-2SC, MDNCT-1SC, MDNCT-2SC |
_________________________
Morris Schreim
Chief Engineer
[1]General Electric Type I-70 with a cyclometer register is not recommended for use.
[2]A current transformer type metering device shall not be used in Maryland unless the current transformer used in conjunction therewith meets all requirements specified in IEEE C57.13, Standard Requirements for Instrument Transformers.
[3]The TRC watt-hour meter may be used only for indoor installation, because the cover of the meter is not rain-tight.
[4]The current transformers (current sensors) should be installed in a steel, rust-resistant enclosure to prevent unauthorized access to them.
[5]The UMS watt-hour meter is intended for indoor use only.
