Square D Digest 179

Accessories and Lug Data

Double Throw Safety Switches

Class 3140

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Rainproof Bolt-On Hubs for Double Throw Safety Switches • UL Listed for indoor or rainproof applications • Suitable for use with conduit having ANSI standard taper pipe thread • NEMA Type 3R switches with catalog number ending in RB have a bolt-on closing cap factory installed – Accepts 3/4 in. through 2-1/2 in. bolt-on hubs – No gaskets required • NEMA Type 3R switches with R suffix have blank top endwalls – Accepts 3 in. through 4 in. bolt on hubs – Gaskets provided – Conduit entry holes must be cut in the field Table 3.51: Rainproof Bolt-On Hubs Conduit Size 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 Closing Cap Hub Cat. No B075 B100 B125 B150 B200 B250 B300 B350 B400 BCAP Water Resistant Hubs for Double Throw Safety Switches • UL Listed for dust resistant and water resistant applications • Suitable for use with conduit having ANSI standard taper pipe thread • Water resistant hubs are field installed on NEMA Type 4/4X/5 stainless steel and NEMA Type 12/3R and 12K enclosures • Water resistant hubs are available in zinc or chrome plated finish • Gaskets provided

3 SAFETY SWITCHES

H200 Zinc Plated

H050CP Chrome Plated

Table 3.52: Water Resistant Hubs [38] Conduit Size 1/2 3/4 1

1-1/4 1-1/2

2

2-1/2 3 3-1/2

4

Standard Zinc HubCat. No Chrome Plated HubCat. No.

H050 H075 H100 H125 H150 H200 H250 H300 H350 H400

H050CP H075CP H100CP H125CP H150CP H200CP — — — —

[38] Gaskets are provided.

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