Pacific Scientific


Pacific Scientific

SR3720-3798-2A-56C Image 1


The SR3720-3798-2A-56C is a Permanent Magnet Direct Current (PMDC) motor in the PMDC Motors by Pacific Scientific. This 90Vdc motor operates on a 2.5A current and offers a continuous duty power output of HP. The capability to achieve a top speed of 1800 RPM makes it powerful and efficient. This PMDC motor is lighter and more efficient due to the inclusion of a permanent magnet replacing the wound field design. It features a Totally Enclosed Non Ventilated (TENV) enclosure and explosion-proof washdown construction for enhanced durability. For smooth low-speed operation and high overcurrent capacity, it is equipped with anti-cogging magnets. The unit is designed with H-class insulation with a class 220 rating, highlighting a high resistance against winding temperatures up to 150 degrees Celsius. It is also equipped with brush springs and field-replaceable brushes, as well as factory-assigned large bearings for shaft protection. The SR3720-3798-2A-56C unit adheres to SCR rated NEMA standards, has a NEMA 56C face with a removable base, and conforms with UL, CSA, and CE standards.

SR3720-3798-2A-56C by Pacific Scientific is a motor in the PMDC Series. The SR3720-3798-2A-56C features a Voltage (DC) of 90 and a Current (Amps) of 2.5. This Permanent Magnet DC Motor also has a RPM of 1800, a Factory Assigned Enclosure and a H.P. of 1/4.

Revision Part #:

SR3720 3798 2A 56CSR372037982A56CSR372O-3798-2A-56C
Manufacturer Pacific Scientific
Product Type PMDC Motor
Model SR3720-3798-2A-56C
Voltage 90Vdc
Current 2.5A
Power Output 1/4 HP
Top Speed 1800 RPM
Insulation Class H-class (220 rating)
Certifications UL, CSA, CE standards
Construction TENV enclosure, explosion proof washdown

Distribution Cache Shipping Info and Options

Shipping Carriers: Here at Distribution Cache we ship using UPS, FedEx, DHL, or TNT. In most cases we get very competitive rates based on our volume and will be happy quote shipping cost to your location upon request. We also know that many customers would prefer to ship collect on their own account numbers and welcome this option.

Shipping Blind: We recognize that many of our customers intend to re-sell the product to their end user. We respect our customer’s relationships with their clients and offer blind shipping as an option to ensure that the package arrives in the most clandestine way possible.

Shipping Process: We take pride in the way we package your order and spare no cost in making sure that it arrives safely at your facility. In the case of new parts, we are always sure to package the factory box inside another larger box for safe transit. For reconditioned parts we often use Distribution Cache customized packaging that is specially made to protect the products from the bumps and falls present during shipment.


Shipping Options:

Next Day Air Early AM - This service is the fastest overnight delivery option available. For most locations the package will be guaranteed by 8:30AM.

Next Day Air – This service guarantees delivery by 10:30AM and is the most frequently used option for overnight shipments.

Next Day Air Saver – This cost saving overnight alternative guarantees delivery by 3PM the next day.

2nd Day Air – For domestic shipments that would take 3-5 days if shipped via Ground, sometimes having the order in 2 days is a great way to go

Ground – Ground is the most inexpensive shipping option provided. Please ask if we are doing a “free domestic ground” shipping promotion on your order. We often provide free ground shipping on larger orders.


Emergency Courier – At times we can help work with a courier service to get the part to your facility during downtimes scenarios. We prefer that the customer sets up the courier but we can be there to make sure the product is handed off to the driver. Please give us a call to see if this is an option on your order.

Please Note: Products listed as “ships today” can ship same-day if an order is placed before 4PM. For larger drives and motors we ask that notification for same-day shipments be provided by 2PM at the latest. For any products listed as “ships in 3-5 days”, please give us a call to see if this can be expedited.