Square D™ Electromechanical Relays (EMR)
Schneider Electric’s relays are suited for use as logic elements and power-switching output devices
Schneider Electric's square D 8501 K, R, and C relay versions are designed for multi-pole switching applications at 240 V or lower. These relays have industry-standard wiring and pin configurations that allow their use as replacements for many similar relays without wiring or hardware modifications. They’re available in 3 A or 40 A versions.
Square D EMR relays include miniature, power, and universal relays. A wide range of EMR relays are available for most industrial machines including packaging, textile HVAC, automation control panels, and PLC interfaces. Square D relays provide a reliable solution for customers to ensure machine and system performance.
- DPDT latching relay
- AC or DC operation
- Durable open-frame construction
- Complete socket line
- Pilot light options
- Operation blowout magnet for DC switching
- UL-listed, RoHS-compliant, and CSA certified
- Material handling
- Processing
- Lighting control
- HVAC/R
- Industrial applications
- Electric heaters
- Pumps
- Conveyors
Square D™ 8501 Relays
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | 8501RSD43P14V53 | PLUG IN RELAY, TYPE R, MINIATURE | 0 - Immediate | $4,931.40 | View Details |
![]() | ![]() | 8501RS24V20 | PLUG IN RELAY, TYPE R, MINIATURE | 128 - Immediate | $6,025.41 | View Details |
![]() | ![]() | 8501RS41P14V14 | PLUG IN RELAY, TYPE R, MINIATURE | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | 8501RS43V20 | PLUG IN RELAY, TYPE R, MINIATURE | 1 - Immediate | $4,468.27 | View Details |
![]() | ![]() | 8501CO8V29 | POWER RELAY, TYPE C, 2.0 HP, 30A | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | 8501CO6V08 | POWER RELAY, TYPE C, 2.0 HP, 30A | 4 - Immediate | $5,575.32 | View Details |
![]() | ![]() | 8501CO7V08 | POWER RELAY, TYPE C, 2 HP, 30A R | 1 - Immediate | $5,798.03 | View Details |
![]() | ![]() | 8501RS42V24 | PLUG IN RELAY, TYPE R, MINIATURE | 6 - Immediate | $5,968.56 | View Details |
![]() | ![]() | 8501RSD44P14V53 | PLUG IN RELAY, TYPE R, MINIATURE | 1 - Immediate | $6,025.41 | View Details |
![]() | ![]() | 8501RS34V14 | PLUG IN RELAY, TYPE R, HERMETICA | 7 - Immediate | $7,318.83 | View Details |
![]() | ![]() | 8501CDO15V53 | POWER RELAY, TYPE C, 2 HP, 30A R | 6 - Immediate | $5,962.04 | View Details |
![]() | ![]() | 8501CO16V08 | POWER RELAY, TYPE C, 2 HP, 30A R | 3 - Immediate | $9,500.31 | View Details |
![]() | ![]() | 8501CDO22V51 | POWER RELAY, TYPE C, 20A RESISTI | 8 - Immediate | $11,342.60 | View Details |
![]() | ![]() | 8501CO21V20 | POWER RELAY, TYPE C, 20A RESISTI | 0 - Immediate | See Page for Pricing | View Details |
![]() | ![]() | 8501CDO21V53 | POWER RELAY, TYPE C, 20A RESISTI | 3 - Immediate | $12,278.19 | View Details |
Square D™ Sockets
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | 8501NR34 | PLUG IN RELAY, TYPE N, RELAY SOC | 3 - Immediate | $3,262.44 | View Details |
![]() | ![]() | 8501NR34B | PLUG IN RELAY, TYPE N, RELAY SOC | 10 - Immediate | $3,035.07 | View Details |
![]() | ![]() | 8501NR41 | PLUG IN RELAY, TYPE N, RELAY SOC | 3 - Immediate | $3,262.44 | View Details |
![]() | ![]() | 8501NR41B | PLUG IN RELAY, TYPE N, RELAY SOC | 8 - Immediate | $3,035.07 | View Details |
![]() | ![]() | 8501NR42 | PLUG IN RELAY, TYPE N, RELAY SOC | 3 - Immediate | $3,262.44 | View Details |
![]() | ![]() | 8501NR42B | PLUG IN RELAY, TYPE N, RELAY SOC | 10 - Immediate | $3,035.07 | View Details |
![]() | ![]() | 8501NR43 | PLUG IN RELAY, TYPE N, RELAY SOC | 3 - Immediate | $3,262.44 | View Details |
![]() | ![]() | 8501NR45 | PLUG IN RELAY, TYPE N, RELAY SOC | 10 - Immediate | $3,145.96 | View Details |
![]() | ![]() | 8501NR45B | PLUG IN RELAY, TYPE N, RELAY SOC | 4 - Immediate | $2,926.04 | View Details |
![]() | ![]() | 8501NR51 | PLUG IN RELAY, TYPE N, RELAY SOC | 0 - Immediate | $1,398.72 | View Details |
![]() | ![]() | 8501NR51B | PLUG IN RELAY, TYPE N, RELAY SOC | 5 - Immediate | $1,117.30 | View Details |
![]() | ![]() | 8501NR52 | PLUG IN RELAY, TYPE N, RELAY SOC | 1 - Immediate | $1,661.51 | View Details |
![]() | ![]() | 8501NR52B | PLUG IN RELAY, TYPE N, RELAY SOC | 3 - Immediate | $1,159.23 | View Details |
![]() | ![]() | 8501NR61 | PLUG IN RELAY, TYPE N, RELAY SOC | 2 - Immediate | $2,103.21 | View Details |
![]() | ![]() | 8501NR61B | PLUG IN RELAY, TYPE N, RELAY SOC | 6 - Immediate | $1,808.74 | View Details |
![]() | ![]() | 8501NR62 | PLUG IN RELAY, TYPE N, RELAY SOC | 9 - Immediate | $2,027.73 | View Details |
![]() | ![]() | 8501NR62B | PLUG IN RELAY, TYPE N, RELAY SOC | 0 - Immediate | $1,726.27 | View Details |
![]() | ![]() | 8501NR82 | PLUG IN RELAY, TYPE N, RELAY SOC | 2 - Immediate | $2,341.76 | View Details |
![]() | ![]() | 8501NR82B | PLUG IN RELAY, TYPE N, RELAY SOC | 4 - Immediate | $2,027.73 | View Details |
Square D™ Accessories
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | 8501NH42 | PLUG IN RELAY, TYPE N, RELAY HOL | 0 - Immediate | $135.12 | View Details |
![]() | ![]() | 8501NH82 | PLUG IN RELAY, TYPE N, RELAY HOL | 0 - Immediate | $135.12 | View Details |
![]() | ![]() | 8501XB20 | RELAY ADDER DECK 600VAC 10AMPS N | 0 - Immediate | $5,309.74 | View Details |
![]() | ![]() | 8501XB40 | RELAY ADDER DECK 600VAC 10AMPS N | 1 - Immediate | $9,132.23 | View Details |
![]() | ![]() | 8501XC1 | RELAY CONTACTS 600VAC 10AMPS NEM | 13 - Immediate | $2,174.96 | View Details |
![]() | ![]() | 8501XC4 | RELAY MASTER CARTRIDGE 600VAC 20 | 10 - Immediate | $6,640.43 | View Details |
![]() | ![]() | 8501XLV02 | RELAY LATCH ATTACHMENT 120VAC NE | 10 - Immediate | $18,704.29 | View Details |
![]() | ![]() | 8501XS1 | RELAY TRANSIENT SUPPRESSOR NEMA | 1 - Immediate | $5,312.53 | View Details |
![]() | ![]() | 8501XTD1 | RELAY PNEUMATIC TIMER ATTACHMENT | 0 - Immediate | $37,186.81 | View Details |











































