Contactor Relays - 1v to 50v
Click here for Contactor Coils

Contactor Relay
12v DC / 12 ohm / 200 amp / 250 vac / DPST
(KO) 740C-R2A-C012
Gruner DPST mechanical latching relay. 12 vdc, 12 ohm coil. 200 amp / 250 vac latching 2 pole contactor. Control via 12 vdc, 1 amp momentary. Reverse polarity to switch. 3-1/2" x 3-3/4" x 3"H. 18 pcs per case. Original OEM price over $100 each.
$45 each - $35 (3+), $29 (18+), $23 (108+)
Contactor Relay
12v DC / SPST (N.O.) / 30 amp
(KO) PRD3DY012
Potter & Brumfield contactor relay. Coil: 12 vdc, SPST (N.O.), 30 amp. Contacts: 1 hp, 120v, 2 hp, 240 vac, 1 phase, 25 amp, 277 vac, 10 amp, 600 vac, 30 amp, 250 vac. 2-1/2" x 2-7/16" x 2-3/16".
*** SOLD OUT ***
Contactor Relay
12v DC / SPST (N.O.) / 25 amp
(KO) 99DBX3
Magnecraft contactor relay. Coil: 12 vdc, SPST (normally open), 25 amp. Dimensions: 2.5" x 2.5" x 2" high.
$29 each
Contactor Relay
12 - 14v DC / 2 Pole
(KO) 209059RB
Rowan contactor relay. Coil: 12-14 vdc, 2 pole. Contacts: 15 amp, 300 vac max; 10 amp, 100 vdc; 15 amp, 50 vdc. Dimensions: 3-15/16" x 2-11/16" x 2-3/8". Mfg. P/N: 2180D-FE20HA-MOD.A.
$19 each - $17 (6+)
Contactor Relay
12v AC / DPST N.O. / 30 amp / 240v AC
(KO) 20240-81
Deltrol contactor relay. 12v AC coil. DPST, normally open. 30 amp, 240v AC. 2-1/2" x 2-1/2" x 2-3/8"H.
$55 each
Contactor Relay
24v DC / DPST N.O. / 30 amp
(KO) PR7DGO85026-24
Potter & Brumfield contactor relay. 24v DC coil. DPST, normally open. 30 amp @ 240v AC, 20 amp @ 277v AC, 10 amp @ 600v AC. 2-1/4" x 2-1/2" x 2-1/4"H.
$15 each - $13.50 (6+), $11.75 (25+)
Contactor Relay
24v DC / 5PDT / 10 amp
(KO) 33BQA5D7
Phillips Advance Control Co. contactor relay. 24v DC coil. 5PDT, 10 amp. Mounting base with tapped holes on 1/2" x 1-5/16" centers. 2-1/2" x 1-3/4" x 2-1/4"H.
$25 each - $21 (6+), $19 (20+)
Contactor Relay
24v DC / DPDT / 15 amp
(KO) PRD-11DN0-24
Potter & Brumfield contactor relay. 24v DC coil. DPDT, 15 amp. 2-1/2" x 3-3/8" x 2-1/4"H.
$18 each - $16 (3+)
Medium Contactor Relay
24v DC / DPDT / 25 amp
(KO) PR11DYO
Potter & Brumfield medium contactor relay. DPDT, 25 amp, 240v contacts. 24 vdc coil. 2-1/2" x 3-3/8" x 2-3/8"H.
$22 each - $19 (3+), $17 (20+)
Contactor Relay
24v DC / 4 Pole / 22 amp
(KO) 15CK88624V
Audoli contactor relay. 4 pole plus one auxillary contact. 22 amp. Coil: 24 vdc, 600v, 5.5kw. Surface or rail mount.
$45 each
Contactor Relay
24v DC / SPDT / 25 amp
(KO) W99X-3
Magnecraft contactor relay. 24 vdc coil, SPDT, 25 amps, 240v contacts. 2-1/2" x 2-1/2" x 2-1/8"H.
$35 each
Contactor Relay
24v DC / DPDT / 25 amp
(KO) PRD11DY024
Potter & Brumfield contactor relay. 24 vdc coil, DPDT. Contacts: 1 HP, 120 / 240 vac, 1 phase, 25 amp, 240 vac, 20 amp, 277 vac. 3-5/16" x 2-1/2" x 2-1/4".
*** SOLD OUT ***
Contactor Relay
24v AC / 3 Pole / 35 amp
(KO) 3100-30Q879
Products Unlimited contactor relay. 24 vac coil, 35 amps resistive, 25 amp FLA, 3 pole. 2-3/8" x 3-3/4" x 3"H.
$59 each
Contactor Relay
24v DC / 3PST / 17.5 FLA / 3 phase
(KO) CR7ZCL
GE Spectra 700 contactor relay has 1 N.O. auxiliary contact. 17.5 FLA 600v, 10 HP. 24 vdc coil. 3PST normally open contactor. 3-1/4" x 1-3/4" x 4-5/8"H.
$45 each
Contactor Relay
24v DC / 4PST / 30 amp
(KO) 2200-EB240JA-29
Gould contactor relay. 4PST 30 amps, 600 vac contacts, normally open. 24 / 28 vdc coil. 3-3/4" x 4" x 3-3/8"H. End-mounted, normally closed pilot switch listed as Mod A.
$65 each - $55 (3+)
Contactor Relay
24v AC / 3PST (N.O.) / 40 amp
(KO) R8212G1001
Honeywell contactor relay. 3PST, normally open. Coil: 24v AC, 50 / 60 Hz. 40 amp contacts. 2-5/8" x 3-5/8" x 3-1/4"H.
$65 each - $59 (3+)
4 Pole Contactor Relay
24v DC / 4PST / 25 amp
(KO) PM15DY
Potter & Brumfield open frame contactor relay. 4PST, 25 amp, 240v contacts. 24 vdc coil. 2-3/4" x 3-1/4" x 2-3/4"H.
$25 each - $21 (3+), $19 (20+), $17.25 (100+)
Contactor Relay
24v DC / SPST / 30 amp
(KO) PRD-60891-1
Potter & Brumfield contactor relay. 24v DC coil. SPST, normally open. 30 amp, 240v AC contacts. 2-1/2" x 2-1/2" x 2"H.
$15 each - $14 (6+), $12 (25+)
Contactor Relay
24 - 28v DC / 4 Pole / 30 amp
(KO) 10078149
Gould contactor relay. 4 pole. Coil: 24 - 28 vdc + auxilliary contacts. 30 amp / pole-res. / 600 vac max.
$99 each
3 Pole Independent Relays
150 amp @ 30v DC
(KO) 4D2000
HOL-GAR 3 pole independent relays. 150 amp @ 30v DC. 27.5v DC coils. 3/8" stud terminals. 5-1/8" x 9" x 5-1/4"H (with terminals). Includes test data (PDF file).
$400 each - $350 (2+)
Contactor Relay
28v DC / SPST Normally Open / 150 amp
(KO) SM150D1
Cutler Hammer / Eaton DC power contactor relay. Hermetically sealed. 150 amp SPST, normally open with DPDT auxilliary contacts.
$150 each
Contactor Relay
28v DC / SPST / 600 amp
(KO) A712A
Hartman SPST contactor relay, continuous duty. 28 vdc coil, 600 amp. 3-7/8" x 4" x 4". Lovingly made in 1957, the same year as Surplus Sales’ owner.  They are both antiques.
$295 each - $265 (2+)
Contactor Relay
28v DC / DPST / 30 amp
(KO) 425BXX204-12/DC
Struthers Dunn contactor relay. DPST, normally open. 30 amp, 120/240v AC, 28v DC, 12v DC coil, 70 ohms, 10 amp @ 600v AC. 2-1/2" x 2-1/2" x 2-1/4"H.
$33 each - $30 (3+), $27 (12+)
Contactor Relay
28v DC / 3PDT / 100 amp
(KO) BH-129EH
Hartman contactor relay. 28v DC coil. 3PDT, 100 amp, 208v contacts. 3 phase. Continuous duty. 4" x 6-1/2" x 3-7/8"H. 1/4 - 28 threads top side. New, boxed. NSN: 5945-00-817-7884. Main relay for Stratofortress B-52 weapon system.
$595 each
Contactor Relay
32v DC / 6 Pole / 10 amp or 5 amp
(KO) 738687
Allen Bradley contactor relay. 6 pole, 10 amp contacts (64v) or 5 amp 125v. 32 vdc coil. 2-3/4" x 3-1/2" x 5-3/4 long.
$35 each
Contactor Relay
48v DC / 4 Pole / 20 amp
(KO) SRCA36310G4A
Fuji Electric magnetic contactor relay. 48 vdc, 4 pole, 20 amp, 550v.
$85 each
Universal Contactor Relay
24 / 120 / 208 / 240v AC
(KO) 91439
Mars universal contactor relay. Coil: 24 / 120 / 208 / 240v AC. 3 pole, 40 amp. 3-3/4" x 3-3/4" x 2-1/2" high.
$79 each
Control Breaker
Control Voltage: 110 / 125v DC
(KO) D-213
Rowan control breaker. Size 4. 100 amp to 550v AC. 3 phase. Control voltage: 110 / 125v DC. Includes auxillary contacts. 6" x 16" x 7-1/2" deep. Harris P/N: 570-0203-000. New, boxed.
$500 each
Medium Contactor Relay
110v DC / 4PDT / 10 amp
(KO) AR106
Potter & Brumfield medium contactor relay. 4PDT, 10 amp contact. 10k ohm, 110v DC, 10 ma coil. 5945-00-702-3737.
$75 each
Telemecanique Pneumatic Timing Control Relay
120v AC / 4 Pole / 10 amp
(KO) J12F3TC0012
Telemecanique pneumatic timing control relay. 120v AC coil. 4 pole, 10 amp main contacts. Control module has 1- N.C., 1 - N.O. contact. 0-180 seconds once voltage is removed. "OFF Delay". Control module: J20FTC-18. Contactor base: J20C00. 3-1/2" x 2-3/8" x 6-1/2"H. UL and CSA listed. NSN: 5945-00-B00-0499.
$150 each
Gould Pneumatic Timing Relay
110/120v AC / DPST / 10 amp
(KO) J121T0012
Gould pneumatic timing relay. 110/120v AC, 50/60 Hz coil. DPST contacts, 10 amp, 600v. Aux contacts on timer. 1- N.O., 1- N.C. Delay engages once relay deenergized. "'OFF Delay". Adjustable delay up to 1 minute. UL and CSA listed.
$119 each
Contactor Relay
115v AC / 3 Poles
(KO) A2120176-2
Wheelock-Signal contactor relay. 3 poles total. 2 poles N.O., 35 amp @ 115v AC, 1 pole N.O., 10 amp. Coil: 0.05 amp @ 115v AC. Limited adjustable pull-in force. Cast iron frame!
NSN: 5945-00-259-5389.
$25 each
Contactor Relay
115v DC
(KO) 7001-EQ1026
Navy, shipboard contactor relay from the 1940s. 115v DC coil. DPST, normally open. Solid ceramic base. 3" x 4" x 3" high. New, but dusty from spare parts kits. NSN: 5945-00-251-9791.
$15 each
Contactor Relay
115v AC / DPDT / 15 amp
(KO) 120516-C
Westinghouse contactor relay. DPDT, 15 amp wide space contacts, high voltage. Coil 115v AC, 50 / 60 Hz. Type SG. 2" x 4-1/4" x 2-7/8"H. Auxiliary relay contacts.
$49 each

Contactor Relay
115v AC / Double Pole / 25 amp

(KO) PR3146-2
Potter & Brumfield double pole contactor relay. 115v AC, 25 amp, 60 Hz. Spade terminals. 2-1/2" square x 2-1/4" high. Used, removed from service but in good condition.
$10 each - $9 (3+), $8 (10+)

Potter & Brumfield Relay
120v AC / 10 amp

(KO) MS2AY
Potter & Brumfield relay. 10 amp contact, 120v AC coil. SPST - normally closed. 3/4 HP. Contact closes when voltage is removed. 2" x 2-1/2" x 2-1/4".
$12 each
Contactor Relay
120v / 4 Poles / 30 amp
(KO) 702L-B0D94
Allen Bradley contactor relay. Series K. 120v, 60 Hz coil. 30 amp, 4 poles. NEMA open. 6-1/2" x 4" x 3-3/8" deep. Harris P/N: 570-0229-000.
$135 each
AC Contactor Relay
3 Pole / 60 amp / N.O.
(KO) 702L-C0D93
Allen Bradley AC contactor relay. 3 pole. 60 amps continuous. NEMA open. New old stock.
$195 each
Contactor Relay
120v AC / 3PST / 80 amp
(KO) LC1D6511G7
Telemecanique contactor relay. 3PST, normally open 30kw, 50 HP, 80 amps, 1000v operating, 8kv test on main contacts + aux. contacts. 120v AC, 50 / 60 Hz coil. 3" x 5" x 4-1/2"H.
$169 each
Contactor Relay
120v AC / 3PST / 300 amp / 3 phase
(KO) JCG4001A
Prestolite incredibly HEAVY-DUTY 3PST normally open contactor relay. Rated at 200v AC/60Hz, 300 Amps, Maximum 400v AC at derated capacity. Use on single or three phase projects. 120v AC control coil.  Has secondary N.O. and N.C. feedback switch 4" x 5" x 8" high. Only 48 left in stock.
$250 each
Contactor Relay
120 - 200v AC / 3PST / 350 amp
(KO) JCG6023A
Another Prestolite incredibly HEAVY-DUTY 3PST normally open contactor. This one is more compact than the JCG4001A left. Made to switch 350 amp AC equipment. Use on single or three phase projects. Parallel three for 1000 amp switch! 120 / 200v AC, 60 / 400 Hz control coil. We measured 189 maac at 120v AC to hold the coil. 4-3/4" x 5" x 5-3/8"H. 3/8" diameter silver terminal studs. 110+ pieces new in the box and in stock. 17 pin circular control connector. Mate available for $65 each. NSN: 6110-01-326-1013.
$795 each - $650 (3+), $525 (12+)
Contactor Relay
208v AC / DPDT / 30 amp
(KO) 10078037
Deltrol contactor relay. Series 900. DPDT, 208v AC coil, 30 amp. Contacts: 1-1/2 hp, 30 amp, 120 - 240v AC, 1 phase. Dimensions: 2.5" x 3.5" x 2.25" high.
$49 each - $42 (3+), $37 (12+)
Contactor Relay
208 - 240v AC / 2 Pole / 15 amp
(KO) FE20BA
Rowan contactor relay. 2 pole. 208 / 240v AC coil, 15 amp, 50/60 Hz. 2-1/4" x 2-3/4" x 2-1/2" high.
$39 each
Contactor Relay
220v @ 50 Hz / 600v Contacts / 18.5 kw / 3 Phase
(KO) C5
Audoli contactor relay. C5. 220v @ 50 Hz coil, 600v contacts, 18.5 kw, 3 phase. 3-3/8" x 3-1/2" x 4-3/4" high.
$119 each
Contactor Relay
3 Pole / 220v @ 50 Hz / 240v @ 60 Hz / 55 amp
(KO) DIL3-22
Klockner-Moeller contactor relay. 3 pole. 220v @ 50 Hz, 240v @ 60 Hz. 55 amp. Aux. contacts, 2 normally open, 2 normally closed. 5-1/4" x 5-1/2" x 5-1/4"H.
$450 each
Contactor Relay
220v @ 50 Hz / 240v @ 60 Hz / 90 amp
(KO) DIL4-22
Klockner-Moeller 3 pole contactor relay. 220v @ 50 Hz, 240v @ 60 Hz. 90 amp. Aux. contacts, 2 normally open, 2 normally closed. 6-1/4" x 6" x 5-1/2" deep.
$650 each
Replacement Coil
(KO) 22-102.206
Sprecher & Schuh replacement coil for (KO) CA1-10-N contactor relay. 210v @ 50 Hz, 240v @ 60 Hz.
$15 each
Contactor Relay
220v / 2 pole / 40 amp @ 500v / 50 Hz Coil
(KO) MS40
F&G contactor relay. 2 pole, 40 amp @ 500v, 220v, 50 Hz coil. 2" x 2-1/2" x 2-3/4"H.
$35 each
Contactor Relay
240v / DPST / 25 amps
(KO) PRD7AY0-220
Potter & Brumfield / AMF contactor relay. DPST. Coil: 240v, 50/60 Hz, 1120 ohms. Contacts: 1 hp, 120v; 2 hp, 240v AC. 25 amp contacts. 2-1/2" x 2-7/16" x 2-1/4".
$17 each - $15 (3+), $13 (10+)
Contactor Relay
240v / DPST / 25 amps
(KO) PRD7AYO-240
Potter & Brumfield contactor relay. DPST, normally open. Coil: 240v. 25 amps. 63.5mm H x 85.7mm L.
$15 each - $13 (3+), $12 (10+), $10.70 (50+)
AC Contactor Relay
2 Pole N.O. / 120v AC Coil / 600v / 20 amp
(KO) 700-PK200A1B
Allen Bradley AC contactor relay. 2 pole, normally open. 600v, 20 amp contacts. 120v AC coil. 2-1/8" x 3-1/2" x 3-3/4" high. Brand new in the box!
$65 each
Control Relay
600v / 10 amps / 4 N.O. Contacts / 120v AC Coil
(KO) CA2KN40G7
Telemecanique control relay. 600v, 10 amps. 4 normally open contacts. 120v AC coil. 35mm "DIN" mount. 2-1/4" high.
1-1/4" x 2-1/4" base.
$25 each - $23 (3+), $21 (12+)
Contactor Relay
(KO) 700-RA01
Allen Bradley contactor relay. Front deck with one normally closed contact cartridge. NSN: 5945-01-177-2036. New in box.
$20 each
Contactor Relay
600v / 3 Pole / 25 amp
(KO) XMB-2999
Rowan contactor relay. 3 pole. 600 volt, 25 amp, 120 / 110v coil, 50 / 60 Hz. Auxiliary contacts. Includes enclosure. Removed from brand new, unused military equipment.
$39 each