UR1HH Industrial Relay Module (SPDT Outputs)

Description

UR1HH

The GE UR1HH operates in the I/O switching layer of the automation stack, functioning as a bridge between GE’s control systems and high-power field devices (like contactors, motors, or circuit breakers). It features 8 independent single-pole, double-throw (SPDT) relay outputs, each rated for up to 10A at 250V AC—powerful enough to switch heavy-duty industrial equipment while maintaining precise control. Unlike basic relay modules, it includes built-in arc suppression diodes for each output, which reduce electrical arcing during switching—extending relay lifespan by up to 50% and preventing damage to connected devices from voltage transients.

UR1HH

A key advantage of the GE UR1HH is its flexible integration: it connects to GE control systems via a proprietary backplane interface for real-time status monitoring (e.g., relay energization state, fault alerts) and can also be wired to third-party controllers via dry contacts for legacy system compatibility. It supports hot-swappable installation, allowing technicians to replace the module without shutting down the entire control panel—essential for 24/7 operations like wastewater treatment plants or continuous manufacturing lines. Additionally, it includes LED status indicators for each relay, providing at-a-glance visibility into operational state, which speeds up troubleshooting and reduces maintenance time.

Main features and advantages:

Choosing the GE UR1HH delivers long-term value by enhancing switching reliability and reducing maintenance overhead. Its ruggedized construction is engineered to withstand extreme industrial stressors: it resists vibration up to 10g (critical for machinery-mounted control panels in mining or automotive plants) and operates in 95% non-condensing humidity, eliminating the need for specialized shock-absorbing or climate-controlled enclosures. The built-in arc suppression diodes also reduce relay wear, cutting replacement frequency by half compared to standard modules—lowering long-term parts costs and minimizing unplanned downtime.

The module’s flexible integration and monitoring features further streamline operations. With real-time status reporting via the GE backplane, engineers can track relay performance remotely via GE’s CIMPLICITY HMI, identifying issues like stuck relays or overcurrent events before they impact downstream devices. For legacy systems, its dry contact compatibility means it can be retrofitted into older control panels without replacing existing controllers—saving the cost of a full system upgrade. For scaling operations, the GE UR1HH’s compact DIN rail design allows stacking multiple modules in tight control cabinets, supporting up to 64 relay outputs per cabinet without sacrificing airflow. Additionally, its compliance with global safety standards (like UL 508 and ATEX Zone 2) ensures it can be deployed in regulated industries without additional safety certifications, reducing time-to-implementation.

Application fields:

The GE UR1HH is deployed across industries where reliable switching is non-negotiable. In utility substations, it’s used to switch protective relays and circuit breakers, ensuring fast activation during fault conditions to prevent grid damage or power outages. In steel mills, its high vibration resistance makes it ideal for controlling motor contactors in rolling mills, where constant mechanical stress would degrade standard relays quickly.

In oil and gas refineries, its ATEX Zone 2 compliance allows safe use in hazardous areas, switching valve actuators and emergency shutdown systems to prevent leaks or explosions. All these environments demand resistance to harsh conditions, fast switching speeds, and long-term reliability—requirements the GE UR1HH meets with its rugged design, arc suppression, and high load rating. For safety-critical applications like nuclear power plant auxiliary systems, it acts as a redundant switching layer, ensuring backup activation of critical devices if primary relays fail.

Related products:

GE UR1HH-LV – Low-voltage switching variant (5A @ 120V AC) for light-duty applications (e.g., HVAC control in industrial facilities).

GE UR1HH-HV – High-voltage rated model (10A @ 480V AC) for heavy-power applications (e.g., industrial heater control).

GE UR1HH-8D – Double-pole, double-throw (DPDT) relay version (4 relays) for dual-circuit switching (e.g., motor forward/reverse control).

GE UR1HH-R – Redundant relay module (dual coils per relay) for zero-failure systems (e.g., emergency shutdown in refineries).

GE UR1HH-EX – ATEX Zone 1-rated variant for explosive environments (e.g., upstream oil and gas production).

GE UR1HH-W – Wide-temperature model (-55°C to +80°C) for Arctic or desert deployments (e.g., remote pipeline monitoring).

GE UR1HH-ISO – Isolated relay outputs model for high-noise environments (e.g., welding facilities, high-voltage substations).

GE UR1HH-Legacy – Compatible with older GE Multilin UR series (UR6, UR8) for teams upgrading legacy protection systems.

Installation and maintenance:

Before installing the GE UR1HH, verify that your GE control system (Multilin UR series or PACSystems RX3i) has firmware version V5.2 or higher—older versions may not support real-time status reporting or hot-swap functionality. Confirm that the connected devices’ current and voltage ratings do not exceed the module’s 10A @ 250V AC per relay limit; use a clamp meter to test peak current draw of downstream devices (like contactors) to avoid overloading. Inspect the backplane connector and terminal blocks for corrosion or bent pins, as poor connections can cause intermittent relay activation or fault reporting errors. Ensure the control cabinet has adequate cooling: while the module generates minimal heat (up to 8W), verify that ambient temperature in the cabinet stays within the -40°C to +70°C range, especially in enclosed industrial settings.

For ongoing maintenance, visually inspect the GE UR1HH’s LED indicators weekly to confirm all relays are in the expected state (energized or de-energized) during normal operation. Test relay functionality quarterly by triggering manual switching via the GE control software and verifying downstream device activation—this identifies stuck or slow-responding relays early. Check terminal block screws for tightness every 6 months, as vibration can loosen connections over time, leading to increased resistance or arcing. Once per year, clean the module’s ventilation slots with compressed air to remove dust buildup, which can trap heat and shorten relay lifespan. For critical applications, log relay operation cycles via the GE HMI to track approaching end-of-life (target replacement at 80,000 operations to avoid unexpected failure).

Other GE product models:

GE PQMII-T20-C
GE DS200UCPBG6AFB
GE 469-P1-HI-A20-T
GE 489-P5-HI-A20-E-H
GE IS220PHRAH1A
GE IS215UCCCH4A
GE IS200AEPGG1AAA
GE IS420UCSBH1A
GE 369-LO-0-M-0-0-0-E
GE ML1600-HI-XX-A2-A4-X
GE IS220PRTDH1B
GE IS200SRTDH2ACB
GE IS420PUAAH1A
GE IC698CPE030
GE IS220UCSAH1A
GE V7768-320000
GE 705-1512-01
GE IC754VGL06CTD ES0622
GE IC698CRE040-HN
GE MIVII1000E00HI00
GE 745-W2-P5-G5-LO-A-L-R-E
GE IS220PDIOH1A
GE IS200VVIBH1C