Pacific Scientific


Pacific Scientific

SRF3643-4593-7-56C Image 1


The SRF3643-4593-7-56C is a permanent magnet direct current (PMDC) motor in the PMDC Motors by Pacific Scientific. This motor is designed to deliver consistent low-speed performance, making it ideal for rigorous mechanical and industrial operations. The SRF3643-4593-7-56C adheres to the SCR rated NEMA standards and requires a 90 volt power input DC voltage. It offers a power output of 746 watts, approximately 1 horsepower, and can comfortably operate at a high speed of 1750 RPMs. It also possesses a continuous current rating of 9.6 amperes. The inclusion of NEMA 56C standard mounting and a removable base allows for simpler maintenance and brush substitution. This 29-pound PMDC motor features a totally enclosed fan-cooled (TEFC) enclosure, complete with a fan-cooled housing to prevent overheating. Furthermore, it is constructed with an explosion-proof body, making the motor environmentally friendly and safe for both the internal components and its surroundings. Indicative of Pacific Scientific's commitment to quality and durability, the SRF3643-4593-7-56C PMDC motor is an excellent choice for industrial applications.

SRF3643-4593-7-56C by Pacific Scientific is a motor in the PMDC Series. The SRF3643-4593-7-56C features a Voltage (DC) of 90 and a Current (Amps) of 9.6. This Permanent Magnet DC Motor also has a RPM of 1750, a Factory Assigned Enclosure and a H.P. of 1.

Revision Part #:

SRF3643 4593 7 56CSRF36434593756C
Manufacturer Pacific Scientific
Product Type PMDC Motor
Model SRF3643-4593-7-56C
Compliance Standard SCR rated NEMA standards
Power Input 90 volts DC
Power Output 746 watts (Approximately 1 horsepower)
Operating Speed 1750 RPMs
Continuous Current 9.6 amperes
Mounting NEMA 56C

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.