37HM SENSATA | Alldatasheet

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Technical content

www.sensata.com Copyright © 2018 Sensata Technologies, Inc. 37HM | MOTOR PROTECTORS HERMETICALLY SEALED ON-WINDING, 3-PHASE SPECIFICATIONS Features and Benefits Introduction

  • Protect WYE (Star) wound 3-phase motors from 1 to 6-7HP . Used in refrigeration compressors, submeersible pumps and other restrictive environments.
  • In-line protection in a small, rugged, welded construction. Low profile shape allows for close coupling to motor windings.
  • Klixon® snap-action discs assure positive make and break action and controlled temperature differential.
  • Designed for low and high side pressure applications. This protector is designed to protect 3-phase refrigeration and air conditioning compressor motors from excessive winding temperature; however, applications may be made to any WYE wound 3-phase motors where environmental conditions require a hermetic seal. The low profile permits the device to be installed directly on motor windings for closely coupled temperature monitoring, thus enhancing over-temperature protection against loss of refrigeration charge, low voltage locked rotor, and single-phasing (loss of phase). The 37HM is designed to reduce installation costs by replacing pilot control systems with a simple, economical, compact device. The basic element of the 35HM is the famous Klixon® Snap Acting Disc. Standard Series High Capacity Series 1XX 2XX 3XX 4XX 5XX 6XX 230V 460V 575V 230V 460V 575V 90A 45A 35A 105A 75A 50A Maximum Recommended Locked Rotor Current Current ratings are based on life test data which has demonstrated high reliability at 0.7 power factor on Sensata test boards. These capacities are intended as a guide for application work. Standard Operating Temperatures Open Temperature 100ºC to 180ºC (5ºC Increments) Tolerance ±5ºC Closing Temperature To Suit Application Tolerance ±9ºC Pressure Rating 1500 PSIG

105 Bar

www.sensata.com Page 2 Copyright © 2018 Sensata Technologies, Inc. DIAGRAMS 37HM Hermetic Motor Protector Electrical Schematic L H W Unit Ins mm W 0.78 H 0.5 12.7 0.7 17.8 L 1.26 0.09 2.3 0.25 6.4 Protector Shell Disc Htr. Htr. Htr. Compressor Motor Windings Third connection for WYE-centerpoint is made to housing by welded lead, QC tab or other customer option

AGENCY APPROVALS & CERTIFICATIONS Agency File Number UL/Canadian UL E15962 DEKRA (ENEC) 2018218.08 CQC CQC05002011992 37HM CODE SYSTEM Example : 37HM XXX-XXX Base Part Number

Electrical Characteristics

Element: Description Element: Description Quick Connects Wire Leads Sleeves, etc. 37HM (XXX) (XXX) When making an inquiry on Klixon® hermetically sealed motor protectors, be certain to specify the entire part number for your application, if known. The six digits following the series identification indicate your specific electrical and physical requirement. Page 3 Rev:09/28/18 www.sensata.com CONTACT USCopyright © 2018 Sensata Technologies, Inc. Sensata Technologies, Inc. (“Sensata”) data sheets are solely intended to assist designers (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products. Sensata data sheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, improvements and other changes to its data sheets or components without notice. Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED OR STATUTORY , INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF. All products are sold subject to Sensata’s terms and conditions of sale supplied at www.sensata.com SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA. Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA. Americas +1 (508) 236-2551 electrical-protection-sales@sensata. com Europe, Middle East & Africa +3 174 357 8156 info-sse@list.sensata.com Asia Pacific EP_Asia_Public@list.sensata.com China +86 (21)2306 1651 India +91 (40)4033 9611 Japan +81 (45)277 7104 Korea +82 (53) 644 9685 Rest of Asia +65(6478)6860