UMK Series: General Purpose Relays and High Quality Relay Bases
UMK 1
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Solid state Relay Base with Solid State Plug-in Options
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Product Description |
Type Description / |
Datasheet |
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DIN-rail mount, UMK -1 Base |
UMK -1 OM-R/AMS |
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24Vdc input /1 to 350Vdc output @1amp, solid state relay plug-in |
OV-24VDC/350VDC/1 |
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24Vdc input /1 to 60Vdc output @4amp, solid state relay plug-in |
OV-24VDC/60VDC/4 |
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24Vdc input /12 to 530Vac output @5mp, solid state relay plug-in |
OV-24VDC/60VDC/4 |

UMK 22
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| Product Description | Type Description / Order Number |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 24Vac coil | UMK 22-REL 24VAC/21-21 P/N 5520569 |
Datasheet |
| SPDT plug-in r general purpose control relay and base, 10amp contacts with a 24Vdc coil | UMK 22-REL 24/21-ST P/N 5520695 |
Datasheet |
| SPDT plug-in general purpose control relay and base, 10amp contacts with a 120Vac coil | UMK 22-REL 120/21-ST P/N 5520705 |
Datasheet |
| DPDT plug-in general purpose control relay and base, 5amp contacts with a 120Vac coil | UMK 22-REL 120/21-21-ST P/N 5520721 |
Datasheet |
| DPDT plug-in general purpose control relay and base, 5amp contacts with a 24Vdc coil | UMK 22-REL 24/21-21-ST P/N 5520734 |
Datasheet |
| SPDT plug-in general purpose control relay and base, 10amp contacts with a 120Vac coil built to accept 10mA of leakage current on the coil side | UMK 22-REL 120/21-ST-TR P/N 5524235 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 5Vdc coil | UMK 22-REL 5/21 P/N 5542231 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 12Vdc coil | UMK 22-REL 12/21 P/N 5542314 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 24Vdc coil | UMK 22-REL 24/21 P/N 5542712 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 48Vdc coil | UMK 22-REL 48/21 P/N 5542725 |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 5Vdc coil | UMK 22-REL 5/21-21 P/N 5542738 |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 12Vdc coil | UMK 22-REL 12/21-21 P/N 5542741 |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 24Vdc coil | UMK 22-REL 24/21-21 P/N 5542754 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 120Vac coil | UMK 22-REL 120/21 P/N 5543203 |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 120Vac coil | UMK 22-REL 120/21-21 P/N 5543216 |
Datasheet |
| SPDT soldered-in general purpose control relay and base, 10amp contacts with a 240Vac coil | UMK 22-REL 240/21 P/N 5543224 |
Datasheet |
| DPDT soldered-in general purpose control relay and base, 5amp contacts with a 240Vac coil | UMK 22-REL 240/21-21 P/N 5543232 |
Datasheet |

UMK 22 High Quality Relay Bases (No relay included)
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| Product Description | Type Description / Order Number |
Datasheet |
| SPDT, 10amp, base for 120Vac plug-in relay | UMK 22-REL 120/21-ST (Base) P/N 5529175 |
Datasheet |
| SPDT, 10amp, base for 24Vdc plug-in relay | UMK 22-REL 24/21-ST (Base) P/N 5529188 |
Datasheet |
| DPDT 5amp, base for plug-in 24Vdc relay | UMK 22-REL 24/21-21-ST (Base) P/N 5529191 |
Datasheet |

UMK 33 General Purpose Relay and High Quality Bases
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DIN-rail mount, plug-in 4PDT relay, 5 amp contacts LED status indicators and kickback protection for DC coils. 24Vdc and 120Vac coils are available. |
| Product Description | Type Description / Order Number |
Datasheet |
| 4PDT, 5amp,24Vdc coil (relay and base included) | UMK 33-REL 24/4x21-ST-w/RLY P/N 5604028 |
Datasheet |
| 4PDT, 5amp,120Vac coil (relay and base included) | UMK 33-REL 120/4x21-ST-w/RLY P/N 5604257 |
Datasheet |

UMK 33 High Quality Bases (No relay included)
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| Product Description | Type Description / Order Number |
Datasheet |
| 24Vdc coil status indication | UMK 33-REL 24/4x21-ST P/N 5521814 |
Datasheet |
| 120Vac coil status indication | UMK 33-REL 120/4x21-ST P/N 5521827 |
Datasheet |
| No status indication | UMK 33-REL NI/4x21-ST P/N 5521830 |
Datasheet |

UMK 45 Industrial High Current Control Relay and Bases
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SPST, High DC Current, 10amps at 150Vdc, coil voltages of 24,48 or 125Vdc and 120Vac. |
| Product Description | Type Description / Order Number |
Datasheet |
| SPST, high current relay with 120Vac coil (relay and base included) | UMK 45-REL/KUEP-ST-120AC/1-EHC P/N 5601741 |
Datasheet |
| SPST, high current relay with 24Vdc coil (relay and base included) | UMK 45-REL/KUEP-ST-24DC/1-EHC P/N 5601742 |
Datasheet |
| SPST, high current relay with 125Vdc coil (relay and base included) | UMK 45-REL/KUEP-ST-125DC/1-EHC P/N 5602114 |
Datasheet |
| Base only with no indicator (No relay included) | UMK 45-REL/KUEP-ST-EMC-BASE P/N 5602720 |
Datasheet |

UMK 56 Industrial High Current Control Relay and Base
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2 Normally open contacts rated at 30A /277Vac or 20A / 28Vdc, 24Vdc or 120Vac coils. |
| Product Description | Type Description / Order Number |
Datasheet |
| High Current DPST with 24Vdc coil | UMK 56-REL 24/1-1HC P/N 5600261 |
Datasheet |
| High Current DPST with 120Vac coil | UMK 56-REL 120/1-1HC P/N 5601698 |
Datasheet |

UMK 56 High Quality Base (No relay included)
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| Product Description | Type Description / Order Number |
Datasheet |
| Base for 24Vdc coil with LED indication and kickback protection | UMK56-REL 24/11-ST P/N 5526233 |
Datasheet |
| Base for 120Vac coil with LED indication | UMK56-REL 120/11-ST P/N 5526246 |
Datasheet |

RMOB Octal Style Bases
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| Product Description | Type Description / Order Number |
Datasheet |
| 8 pin octal socket w/LED for 120Vac coil | RMOB-JR-1-120 P/N 5601699 |
Datasheet |
| 11 pin octal socket for 120Vac coil, 10 amps | RMOB-JR-2-120AC-MKDS5 P/N 5601974 |
Datasheet |
| 8 pin octal socket for 120Vac coil, 10 amps | RMOB-JR-1-120AC-MKDS5 P/N 5601974 |
Datasheet |
| 8 pin octal socket w/LED for 24Vdc coil, 10 amps up to DPDT | RMOB-JR-1-24DC-MKDS5 P/N 5601975 |
Datasheet |
| 11 pin octal socket w/LED for 24Vdc coil, 10 amps | RMOB-JR-2-24DC-MKDS5 P/N 5601977 |
Datasheet |
| 8 pin octal socket, up to DPDT | RMOB-JR-1-MKDS5 P/N 5601978 |
Datasheet |






