Pacific Scientific


Pacific Scientific

40PA58-53-TEFC-S Image 1


The 40PA58-53-TEFC-S is a tachometer adapter kit in the PMDC Motors by Pacific Scientific. Specifically designed for SRF53 type motors equipped with TEFC enclosures, this adapter kit facilitates the tracking of motor speed, providing either an analogue or digital display. Notable features of the kit include its compatibility with motors with a 180V voltage rating and a speed of 1750RPM. The motors to which the kit can be applied are CSA Certified and UL Recognized, and they carry Class H insulation. The DC tachometer, which incorporates a high-resistant voltmeter, is primarily used in motor vehicles to identify the rotation rate of the engine's crankshaft. This data is crucial for determining appropriate gear and throttle settings in varying driving conditions. The PMDC motors the kit is compatible with have firm sealed bearings and a polyester impregnated armature, ensuring both mechanical and electrical integrity. They also feature anti-cog magnets, delivering smooth motor operation even at low speeds, and permanent magnet fields for a broader speed range. Other features include a durable, fused commutator and constant force brush springs with replaceable brushes. Successful installation requires the tachometer adapter kit to be carefully positioned away from excessive heat sources.

40PA58-53-TEFC-S by Pacific Scientific is a Tachometer Adapter Kit in the PMDC Series. The 40PA58-53-TEFC-S is a Small Adapter Kit Size and is for a SRF53 Motor Type with a TEFC Enclosure.

Revision Part #:

40PA58 53 TEFC S40PA5853TEFCS4OPA58-53-TEFC-S
Manufacturer Pacific Scientific
Product Type Tachometer Adapter Kit
Model 40PA58-53-TEFC-S
Intended Use PMDC Motors from Pacific Scientific
Compatibility SRF53 type motors with TEFC enclosures
Voltage Rating 180V
Rotation Speed 1750 RPM
Certifications CSA Certified, UL Recognized

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.