B-KH-9 Edwards Signaling Backbox, Weatherproof

B-KH-9
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B-KH-9 Edwards Signaling B93 Class Backbox, Weatherproof.

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Product Description

B-KH-9 The Edwards B93 Class electro-mechanical, pressed steel, telcode relays are designed to activate horns, buzzers and bells. The unit's windings are rated in ohms rather than volts. Wire size and number of turns vary with resistance requirements. The B-8316 Series relay is supplied with a capacitor; the B-8315 Series is not. Unit mounts to any flat surface using the mounting holes on 3 3/8" (86mmm) centers. 1/2" (13mm) and 3/4 (19mm) knockouts are provided for input and output wiring. Relays operating on AC ringing voltage and used on common battery circuits require capacitors. Relays operating on DC ringing voltages do not require capacitors unless energized by a common battery.

FEATURES
  • Long-life tungsten contacts
  • Gray finish
  • High grade copper coils
  • Hinged cover
  • Normally open circuit relay
  • Two shading coils prevent armature chatter
  • Designed for plain old telephone service (POTS) operation
  • FCC approval(B-8316 Series only)