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Contact Blocks

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Features/Applications These NEMA 12/13, IP65 contact blocks are designed for use on ALL REES push button operators and selector switches as shown on the preceding pages. The mechanical life of these devices is 1,000,000 operations. Each captive terminal on the contact block will accept (2) # 14 AWG stranded wires and the contacts are gold plated to eliminate high resistance tarnishing.
The 52702 block consists of a B block (50702) attached to an adapter. This adapter Opens the NC contact of the B block Upon Removal from the switch operator. The OUR action provides an added level of security for instances where a NC block may be removed from the operator.

Electrical Ratings
“HEAVY DUTY - A600 / N150”
Listed under UL 508 - File # E 58589;
Certified under CSA C22.2 - File # LR 3648
CE Compliant IEC/EN: 60947-5-1
Third party certified under Test Report - E58589 - D2 - CB 

Environmental Temperature Range
Operating: +32°F to +131°F (0°C to +55°C)
Storage: -40°F to +185°F (-40°C to +85°C)
Note: Operating temperatures at 0°C are based on the absence of freezing moisture and liquids.



These products should only be used where point-of-operation guarding devices have been properly installed & maintained so that appropriate OSHA and ANSI B11.1 regulations & standards are met.  Misapplication of the products on machinery lacking effective point-of operation safeguards can cause serious injury to the operator of that machinery.



Ces produit doivent seulement être utilisés sur des postes à risque correctement sécurisés et entretenus afin d’être conforme aux standards et régulations en vigueur (CSA, CLC). Un mauvais usage de ces produits sur des machines et des postes de travail non sécurisés de manière efficace peut causer des blessures graves au technicien maniant ces machines.


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  Results 1 - 9 of 9 1 

Item #

Item Photo

Contact Designation


Normal Function


Block Height

50701-000 A 1 Open 0.20 in. to Close 0.95
50702-000 B 1 Closed 0.10 in. to Open 0.95
50703-000 C 2 Open and Closed 0.10 in. to Open
0.20 in. to Close
50716-000 P 1 Closed
Do not stack this block
0.24 in. to Open 0.95
50723-000 N/A W 1 Open 0.14 in. to Close 1.18
50724-000 X 1 Open 0.08 in. to Close 1.18
50726-000 N/A Z 1 Open 0.06 in. to Close 1.18
51703-000 C 2 Open and Closed
Make before Break
0.06 in. to Close
0.10 in. to Open
52702-000 B OUR 1 Closed
Opens upon Removal
0.10 in. to Open 1.70
  Results 1 - 9 of 9 1 
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