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Optima 820 Series

2  Installation

2.1  Installation Notes

The following guidance must be followed for proper installation of the product.

1. 

Mounting: This product is designed for mounting in an EIA-310 compliant 19” rack. The user is responsible for 

ensuring the mounting method provides adequate structural support for the product, and any attached cables. The 

user is also responsible for ensuring the mounting location provides adequate ventilation to dissipate heat generated 

during operation of the product. Ensure the product is securely mounted before applying power.

2. 

Chassis ground: The rear of the chassis includes a redundant chassis ground screw and ground wire. If desired for your 

installation location, connect the chassis ground wire to the rack cabinet using an appropriate fastener.

3. 

Optionally, connect the appropriate cables between the PDU outlets and the equipment being powered by the PDU. 

This may be done later according to the startup procedures suitable to the end-user’s equipment and application.

4. 

If applicable, connect the cabling between the PDU and remote EPO control panel.

5. 

PDU Main Breaker: Ensure the Main Breaker on the front of the PDU is in the off position before connecting the PDU’s 

inlet cable to the facility power source. (It is best to switch all breakers to the off position.)

6. 

Facility Power Source: The single-phase facility power source for this product must include an overcurrent protective 

device capacity as defined in the table below:

Main Inlet

Continuous Current 
Rating

Mains Protection 
Required

NEMA 5-15P

12 A

15 A

NEMA 5-20P

16 A

20 A

NEMA L5-20P

16 A

20 A

NEMA L6-20P

16 A

20 A

IEC C20

16 A

20 A

NEMA L5-30P

24 A

30 A

NEMA L6-30P

24 A

30 A

EN — These products are heavy. The flange mounting ears are designed to hold the PDU securely 

against the rack mounting rails, but are NOT designed to support the weight of the product 

vertically. The end user is responsible for ensuring the product’s weight is properly supported by the 

rack’s infrastructure (which may require adding support rails).

 

 

FR — Ces produits sont lourds. Les oreilles de montage à bride sont conçues pour maintenir 

solidement l’unité de distribution de l’alimentation contre les rails de montage, mais NE sont 

pas conçues pour soutenir le poids du produit verticalement. Il incombe à l’utilisateur final de 

s’assurer que le poids du produit est correctement supporté par l’infrastructure du bâti (ce qui peut 

nécessiter l’ajout de rails de support).

Summary of Contents for Optima 833 Series

Page 1: ...Optima 833 Series Power Distribution Units Operating Guide and Reference Sep 2021 P N 501055 000 Rev B ...

Page 2: ... 1 Installation Notes 7 3 Operation 8 3 1 Startup 8 3 1 1 Startup Without Configuring the Software 8 3 1 2 Startup to Configure the Software 9 3 2 Ethernet and Serial Control 9 3 3 Breaker Controls 9 3 3 1 Main Breaker 9 3 3 2 Branches 10 3 3 3 Controls Breaker 10 3 4 Remote Switching EPO Option 11 3 4 1 Remote Override Switch 11 3 4 2 Remote Bus Connector 12 3 5 Digital Power Meter 13 3 6 EMI Fil...

Page 3: ... signal cabling Do not open this product as it contains no user serviceable parts inside All service concerns should be directed to Marway Power Solutions If this product is used in a manner which does not comply with this instruction manual the protection provided by the equipment may be impaired All work on connections must be carried out under zero voltage output disconnect and may only be perf...

Page 4: ...s ce produit car il ne contient aucune pièce réparable par l utilisateur Tous les problèmes de service doivent être adressés à Marway Power Solutions Si ce produit est utilisé d une manière non conforme au présent manuel d instructions la protection fournie par l équipement peut être compromise Tous les travaux sur les connexions doivent être effectués sous une tension nulle et ne doivent être eff...

Page 5: ...pace in an EIA 310 compliant rack enclosure This documentation is about the hardware elements of the Optima 833 Series of PDUs For detailed information about the software you ll need the Optima RCM User Guide Software and Basic Controls Reference located on our website at http www marway com docs 1 6 Product Models Models are primarily organized by what type of power inlet they have Then by the ou...

Page 6: ...uplex receptacle 120 Vac 1ɸ 16 A continuous 20 A max per NEMA L5 20R receptacle 120 Vac 1ɸ 24 A continuous 30 A max per NEMA L5 30R receptacle 208 Vac 1ɸ 16 A continuous 20 A max per NEMA L6 20R receptacle 208 Vac 1ɸ 24 A continuous 30 A max per NEMA L6 30R receptacle 120 208 Vac 3ɸ 24 A continuous 30 A max per NEMA L21 30R receptacle 24 A continuous 30 A max total per phase regardless of receptac...

Page 7: ... the Main Breaker on the front of the PDU is in the off position before connecting the PDU s inlet cable to the facility power source It is best to switch all breakers to the off position 6 Facility Power Source The single phase facility power source for this product must include an overcurrent protective device capacity as defined in the table below Main Inlet Continuous Current Rating Mains Prot...

Page 8: ...ith the main circuit breaker Off as soon as the inlet of the PDU is plugged into a live facility outlet the control system of the PDU is powered and the software will start running 3 1 1 Startup Without Configuring the Software It is assumed the PDU is not plugged into the facility power source 1 Switch all breakers on the PDU control panel to the Off position 2 Whether there is a remote EPO panel...

Page 9: ...s and other software features of the PDU Obtain that document and review the Getting Started chapter In effect prepare the Serial and Ethernet connections to the PDU as described in the Software Guide then use the startup process described above in 3 1 1 Startup Without Configuring the Software on page 8 3 2 Ethernet and Serial Control The document Optima RCM User Guide Software and Basic Controls...

Page 10: ...lay Disable Return J 17 J 1 J 4 CB 1 J 13 CB 4 J 15 J 14 J 16 J 8 CB 2 J12 CB 3 J 5 J 9 J 18 CB 5 J 22 Enable Disable Return J 15 Main Choice of twist lock Choice of twist lock J 23 Delay Disable Return J 1 J 5 J 9 J 16 CB 7 J 17 J 13 CB 4 J 14 CB 5 J 4 CB 1 J 8 CB 2 J 12 CB 3 3 3 3 Controls Breaker There is a small pop out breaker protecting the control system components This isn t used during no...

Page 11: ...ese are named from the perspective of having a remote control panel connected to the system When there is a remote panel connected to the PDU Remote down position is the normal operating mode All outlets except the two utility outlets the two highest numbered outlets are subject to the remote panel On Off EPO controls and the internal software controlled relays Off center position causes an intern...

Page 12: ...ice of twist lock Choice of twist lock J 23 Delay Disable Return J 4 CB 1 J 8 CB 2 J 12 CB 3 J 1 J 5 J 9 Input J 22 Enable Disable Return J 15 Main J 13 CB 4 J 14 CB 5 Choice of twist lock Choice of twist lock J 23 Delay Disable Return J 4 CB 1 J 8 CB 2 J 12 CB 3 J 1 J 5 J 9 Input J 22 J 23 Enable Disable Return Delay Disable Return J 17 J 1 J 4 CB 1 J 13 CB 4 J 15 J 14 J 16 J 8 CB 2 J12 CB 3 J 5 ...

Page 13: ...l outlets plus the internal control system It will update approximately every 3 seconds rotating through the three phases one at a time The keypad can be used to navigate through power values for volts amps watts voltamps voltamps reactive power factor and Hertz for each phase as well as the on off status of the software controlled outlet relay The outlet relay cannot be controlled from the keypad...

Page 14: ...a recessed chassis position The brackets may also be removed for table top operation or adaptation of the end user s own brackets Optional Configurations 4 Digital display of inlet power data and relay state Included with inlet power option 5 Display navigation keypad Included with inlet power option 11 Power inlet Some models include a strain relieved 9 foot cable with an L21 30 plug front or rea...

Page 15: ...it Inlet Voltage and Current All models 120 208 Vac 50 60 Hz three phase wye All models 24 A continuous load 30 A maximum Overload Protection standard All models include a four pole main circuit breaker wired with all three phases and neutral passing through the breaker All branch breakers are UL 489 16 A continuous load 20 A maximum Based on NEC regulations traditional load ratings are de rated t...

Page 16: ...DC are trademarks of Marway Power Systems Inc All other trademarks are the property of their respective owners Global Support Contacts Web www marway com Email support marway com sales marway com Phone 800 462 7929 7am 5pm PST There may be updates to this documentation at http www marway com docs Marway Power Solutions 1721 S Grand Ave Santa Ana CA 92705 800 462 7929 marway marway com ...

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