Test Equipment Grade Switches

MODEL 820 SWITCHES

Specifications
Contact Resistance: Less than     1 mΩ Insulation Resistance: more than     1,000,000  MΩ @ 400 C.      (terminal to terminal and to shaft).	Positions: up to 12 positions,     shorting  (30 degree indexing). Poles: 1 or 2 poles/deck. Decks: 1 to 6 decks/switch.
Current Carrying Capacity: 5A      max. switching @ 28VDC,      1A @ 125VAC Capacitance: Less than 1 pF,      contacts to shaft.	Switch body diameter: 1.62” External shaft: Ό” stainless steel Detent rollers: stainless steel Internal shaft: glass-filled      polycarbonate
Voltage Breakdown: 2000V RMS,      terminal to terminal and to shaft	Indexing: 30° or 60° available,      nylon detent for smooth action
Thermal EMF: Less than 1  μV      Extremely low. Silver contacts to      silver alloy brushes	Continuous rotation, fixed or      adjustable stops to limit rotation       to number of positions desired.
Construction: decks: Diallyl      Phthalate (DAP), totally enclosed      – dust tight Mounting Bushing: nickel plated     brass 3/8-32 UNF Front Housing and End Plate:     Zytel 101 Nylon	Contacts: Stationary-Fine      silver-clad copper       Wiper: Silver alloy, self-cleaning       leaf type Terminals: Solder type with     .067”Ψ hole
Losses: Low electrical losses at     frequencies up to several MHz.	Long Life – 50,000 cycles min.

MODEL 3A SWITCHES

A small, adjustable, and totally enclosed instrument control switch with long-term low contact resistance.

Specifications
Contact Resistance: 3 - 6 mΩ Insulation Resistance: 104 MΩ,      min @ 500VAC	Decks: 1 to 8 decks/switch
Contact Rating: carrying capacity:     15A @ 28VDC @ 20°C. switching	Poles: 1 or 2 poles/deck.
Voltage Breakdown: 1,000VRMS;     2,000 VDC @ sea level	Positions: up to 12/deck (shorting     and non-shorting).
Temp. Range: 65° C. to 95° C.	Continuous rotation, fixed or      adjustable stops to limit rotation      to number of positions desired.
Torque: 1.5 – 2.5 in/lbs (up      to 6 decks)	Contacts: Shorting (30° throw)      and Non-Shorting (60° throw).
Life – in excess of 50,000 cycles     (no load switching).	Stationary Contacts: Silver plated      brass or silver alloy Rotary Contacts (wipers):     silver alloy
Construction: decks: Diallyl      Phthalate (DAP), totally enclosed      – dust tight Front Housing & End Plate: Zytel     101 Nylon	Switch body diameter: 1.00” Shaft: Ό” stainless steel Mounting Bushing: Nickel plated      brass 5/15-32 or  3/8-32 UNF

MODEL 2A SWITCHES

Specifications
Contact Resistance: 4 -6 mΩ Insulation Resistance: 10,000 MΩ	Decks: Standard: 1 to 6/switch                  Special:   7 to 24/switch
Contact Rating: carrying capacity:      5A @ 115VAC max Voltage Breakdown: 1,000VRMS	Poles: 1 to 4 poles/deck.
Construction: open frame type Shaft: Stainless Steel Mounting Bushing: Nickel      plated brass	Positions: up to 24 positions      @15 degree indexing , 24positions       @ 30 degree indexing, 12 postions
Stationary Contacts: Silver plated      brass or silver alloy Rotary Contacts (wipers):      phosphor bronze or silver alloy	Continuous rotation, fixed or      adjustable stops to limit rotation      to number of positions desired.
Life – in excess of 1,000,000 cycl.      (no load switching).	Contacts: Shorting (15° indexing)     and Non-Shorting (30° indexing).

MODEL B6 Thumbwheel SWITCHES

Specifications
Contact Resistance: 15-60 mΩ,     depending on circuit. Insulation Resistance: 500 MΩ, min Voltage Breakdown: 1,000VAC	Construction: Housing, end plates     and rotor:  Black Cycolac     Detent Spring: Phosphor Bronze     Wiper: Beryllium Copper Size: ½” wide switch modules Mounting: Front or back of panel
Contact Rating:     Switching .15A @ 115VAC Res.      Load     Carrying: 1A @ 115VAC	Positions: 1 to 10 positions Numbering: Ό” white numerals     on black rotors.
Life – in excess of 1,000,000     detent operations.	Continuous, bi-directional operation.      Adjustable stops to limit rotation to      number of positions desired.

MODEL 600 OPEN FRAME SWITCHES

Perfect for high quality test instrumentation where ruggedness and versatility are required. Meets military specifications.

Specifications
Contact Resistance: 4 - 6 mΩ Insulation Resistance: 10,000 MΩ	Type: up to 24 position, 1 or 2      poles/deck, up to 8 decks, 15°      & 30° throw.
Current Carrying Capacity: 10A	Insulation: G-10 Glass Epoxy/     MIL-P-18177 type GEE.
Voltage Breakdown: 1,000V;     special to 1500V	Life – 1,000,000 cycles     (no load switching).
Contacts: Silver alloy, shorting      and non-shorting      Maximum contacts/deck: 32	Continuous rotation, fixed or     adjustable stops to limit rotation      to number of positions desired.
Size: 1.750” square front panel Mounting: 2 holes, 1.375” between     centers, 632 UNC thread	Shaft: Stainless Steel

MODEL 700 OPEN FRAME SWITCHES

Available up to 48 positions per deck and 5 decks

Specifications
Contact Resistance: Less than      3 - 5 mΩ Insulation Resistance: 10,000 MΩ,     min @ 500VAC	Type: up to 48 postions/deck, up to 5 decks, variable indexing depending upon number of positions
Current Capacity: 15A @ 120 VAC	Contacts: Silver plated brass or      silver alloy: Shorting and      Non-Shorting
Voltage Breakdown: 1,000V RMS;      2,000 VDC @ sea level	Insulation: G-10 Glass Epoxy/     MIL-P-18177 type GEE.
Thermal EMF: Extremely low. Silver      contacts to silver alloy brushes	Both continuous rotation and     external adjustable stops to     limit rotation to number of      positions desired.
Mounting: 2 holes, 1.500” between     centers, 8-32 UNC thread	Size: 2.750” square front panel
Life – 1,000,000 cycles     (no load switching).	Shaft: Stainless Steel

MODEL 800 OPEN FRAME SWITCHES

Capable of 36 contacts per deck with excellent insulation

resistance and high breakdown voltage.

Specifications
Contact Resistance: 4 - 6 mΩ Insulation Resistance: 10,000 MΩ,     minimum	Type: up to 36positions/deck, up to 5 decks, variable indexing
Current Carrying Capacity: 15A     Breaking Capacity: to 5A     depending on circuit	Contacts: Silver alloy, shorting      and non-shorting
Voltage Breakdown: 1,500V;     special to 2500V	Insulation: G-10 Glass Epoxy/     MIL-P-18177 type GEE.
Thermal EMF: Extremely low. Silver      contacts to silver alloy brushes	Continuous rotation, fixed or      adjustable stops to limit rotation      to number of positions desired.
Mounting: 2 holes, 1.500” between     centers, 8-32 UNC thread	Size: 2.187” square front panel
Life – 1,000,000 cycles     (no load switching).	Shaft: Stainless Steel

MODEL 900 OPEN FRAME SWITCHES

A heavy duty versatile switch for industrial uses as well as specialized test equipment. Available with 48 contacts per deck.

Specifications
Contact Resistance: Less than      3 - 5 mΩ Insulation Resistance: 10,000 MΩ,     min @ 500VAC	Type: up to 48 positions/deck, up to 5 decks, 15° & 30° throw (others available).
Current Carrying Capacity: 15A     Breaking Capacity: to 5A     depending on circuit	Continuous rotation, fixed and     external adjustable stops available.
Thermal EMF: Extremely low. Silver      contacts to silver alloy brushes	Insulation: G-10 Glass Epoxy/     MIL-P-18177 type GEE.
Mounting: 2 holes, 1.500” between     centers, 8-32 UNC thread	Size: 2.875” front panel    Breakdown voltage:  1500 volts
Life – 1,000,000 cycles     (no load switching).	Contacts: Silver alloy, shorting       and non-shorting

MODEL 904, 906 and 908 OPEN FRAME SWITCHES

Specifications
Contact Resistance: 4 - 6 mΩ Insulation Resistance: 104 MΩ,     minimum	Variable indexing depending upon number of positions/deck
Current Carrying Capacity: 25A     (24 contacts). Breaking Capacity: to 5A depending     on circuit.	Life – 1,000,000 cycles     (no load switching).
Voltage Breakdown: 1,500V,      special to 15,000V	Max contacts per deck (904):   84. Max contacts per deck (906): 120. Max contacts per deck (908): 150.
Phosphor Bronze or silver alloy     brushes available. Insulation: G-10 Glass Epoxy/     MIL-P-18177 type GEE.	Continuous rotation, fixed and     external adjustable stops available.
Mounting: (904, 906, 908)     4 holes, 3.000” between centers,     8-32 UNC thread	Size: 4.000” square front panel (904)          6.000” square front panel (906)          8.000” square front panel (908)
Contacts: Silver alloy, shorting      and non-shorting	Shaft: Stainless Steel

KEYREADER SWITCHES

Specifications
Contact Resistance: less than     60 mΩ Insulation Resistance: 100 MΩ	Key Material: Injection molded nylon. Key Reader Assembly Body:     Glass filled nylon
Capacitance: less than 100 pF-     max., pin to pin Current: 5mA min. 1A DC      resistive load.	Contacts: Self wiping, bifurcated,     gold plated beryllium copper. Gold     electroplated printed circuit tabs.
Contact Form: NC, 28 outputs plus     SPDT “read ready” switch. “       10A 1/3HP 125/250VAC       1/2A 125VDC, 1/4A 250VDC       4A 125VAC, lamp load	Mounting: 2 holes on vertical     centerline per customer’s spec. Life – in excess of 1 X 107     operations