Safety Stop Control with Cable Break Detection

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Model RSB

WHAT IS IT? The Model RSB is a heavy-duty safety control ("stop switch") that provides a positive shut off of dangerous equipment in an emergency. A cable pulled by endangered personnel actuates it. The output contacts of the Model RS can control up to two separate circuits, one for machinery shutdown and one for an alarm.The Model RSB has the built-in advantage of cable break detection.

WHY IS IT NECESSARY? Safety minded operators of conveyors, production lines, elevator equipment, assembly lines, material handling systems, cranes, etc. consider it a must for employee protection. Most states have safety statutes that require these switches on conveyors and related equipment. American National Standard Institute recommends their use in ANSI standard No. ASME B20.1-2012-5.11. This ANSI standard will probably soon become part of the William-Steiger Act of 1970- the OSHA act.

Models Available
Model Description Shipping Weight
  Lbs. Price
US Funds
RSB-1 1 SP/DT Switch, No Light 12 $361.00
RSB-2 2 SP/DT Switches, No Light 12 $381.00
RSB-5 2 DP/DT Switches, No Light 12 $413.00
RSB-2L 2 SP/DT Switches with Light 13 $430.00
RSB-5L 2 DP/DT Switches with Light 13 $461.00
RSB-1X Explosion Proof, 1 SP/DT Switch, No Light 12 $489.00
RSB-2X Explosion Proof, 2 SP/DT Switches, No Light 12 $509.00
RSB-5X Explosion Proof, 2 DP/DT Switches, No Light 12 $541.00
RSB-2D Special NEMA 4,4X & NEMA 9 Enclosure, 2 SP/DT Switches, No Light 12 $535.00
RSB-5D Special NEMA 4,4X & NEMA 9 Enclosure, 2 DP/DT Switches, No Light 12 $567.00
Epoxy coating option: add $12.00 to price, add "E" to end of model number.
Note: Turnbuckle and spring tension kit (RSB-20) included with each RSB unit.
Optional LED bulb for model RS-2L or RS-5L: add $37.00 per unit, add "LED" to end of model number.
Typical cardboard shipping carton measures 15" x 11" x 9" each.

Note: Prices subject to change without notice.

Accessories
Part Description Shipping Weight
  Lbs. Price
US Funds
RS-25 3/32" Orange Vinyl Coated Cable, 3/16" O.D. 32 lb./1000 ft. $0.46/ft.
RS-26 3/32" Orange Nylon Coated Cable, 3/16" O.D. 32 lb./1000 ft. $0.74/ft.
RS-27 Cable Support Eyebolt, 1/2" x 6" Plated, with (2) hex nuts and (1) lock washer 1/2 lb. $1.77
RS-23 Threadless Cable Support Eyebolt, 5/16" x 9" Plated (no hardware required) 1/2 lb. $1.77
RS-28 Cable End Fitting,Cable Clamp (each) 0.8 oz. $0.60
RS-29 Conduit Plug, 3/4" NPT 3.5 oz. $1.14
RS-30 Mounting Bracket 4-1/2 lbs. $28.39
RSB-20 Spring Tensioning Kit with Turnbuckle (included with each unit) 3 lbs. N/C
* Cable is sold per foot, no minimum.

Note: Prices subject to change without notice.

Technical Specifications
  • The housing is cast aluminum, with optional epoxy or polyester powder coatings available. These coatings will provide protection against corrosion that is equal or greater than cast iron.
  • The unit can be actuated via a cable pull from either or both directions on every unit; in other words, the unit is "double ended".
  • The unit is mounted on the conveyor by drilling (3) 13/32" diameter holes.
  • General purpose (weatherproof) units have (3) 3/4" NPT conduit openings.
  • Explosionproof units have (3) 3/4" NPT conduit openings.  Conduit plugs included.
  • The standard units have dry, unpowered SP/DT microswitch(es) rated for 20A @ 120 VAC, 240VAC, and 480 VAC; 1/2 amp at 125 VDC and 1/4 amp at 250 VDC.
  • Special spring tensioning kits included with each RSB unit provide stability due to temperature fluctuations, and ease of cable adjustment.
  • The functional ambient temperature is -50° to 85° C [-58° to 185° F].
  • The general purpose units are rated NEMA type 4/4X weatherproof and corrosion-resistant. Explosion proof units are rated NEMA type 7/9 for dust ignition proof and vapor explosion proof. The dual-rated "D" units are rated NEMA type 4 weatherproof and NEMA type 9 dust ignition proof.
  • The general purpose controls are IP65 compliant.
  • All RSB models are UL listed except RSB-3, RSB-7 and RSB-8.
  • Models RSB-1, RSB-2, RSB-2L, RSB-4, RSB-4L, RSB-5 and RSB-5L are CSA certified.
  • Models RSB-1X, RSB-2X, RSB-4X and RSB-5X are CSA certified.
Additional manuals are available for members only.

Drawings (Members Only)

Data Sheets