Products

Electronic Products

Equipment Protection: Arc Fault Reduction, Ground Fault Protection & More

Expansive array of components and options for keeping your energy system running smoothly. U.S. sourced products to power your business.

Products in this line

Arc Flash Relays

Arc Flash Relay Model AFGF1

Arc flash relay without ground fault, 400–6000A, 120VAC input.

Arc Flash Relay Model AFGF2

Arc flash + ground fault relay with fuse conservation.

Arc Flash Relay Model AFGF3

Arc flash + ground fault + fuse conservation relay.

Capacitor Trip Devices

Capacitor Trip Device Model CTD-1

120VAC input, 330µF, 4.72J trip energy.

Capacitor Trip Device Model CTD-2

120VAC input, 1500µF, 21.5J high-energy trip device.

Capacitor Trip Device Model CTD-3

240VAC input, 330µF, 19J trip energy.

Capacitor Trip Device Model CTD-4

Dual voltage 120V/240VAC input, 330µF/990µF.

Capacitor Trip Device Model CTD-5

Dual voltage, high energy 4500µF/990µF capacitor trip device.

Ground Fault Sensors

Ground Fault Sensor Model GFL

Toroidal zero-sequence ground fault sensor.

Ground Fault Sensor Model GFM

Toroidal sensor for use with the GFM-200 relay series.

Ground Fault Relays

Ground Fault Relay Model GFM-200 (252/262)

Ground fault relay for use with GFM 252/262 sensors.

Ground Fault Relay Model GFM-300/400 (353/363/453/463)

Advanced ground fault relay, four model variants.

Ground Fault Relay Model GFP

Ground fault relay with inverse time-delay. Modern replacement for BGFL.

Ground Fault Relay Model GFPV

Ground fault relay with voltage monitoring and fuse supervision.

Ground Fault Relay Model BGFL

Legacy ground fault relay, 5–60A / 30–360A / 100–1200A ranges.

BGFL is discontinued, replaced by GFP

Open Circuit Protectors

Open Circuit Protector Model OCP-1

Single-phase CT secondary open circuit protector, 1.2 lbs.

Open Circuit Protector Model OCP-3

Three-phase CT secondary open circuit protector, 1.2 lbs.

Voltage Monitor Relays

Voltage Monitor Relay Model SPVR2

3-phase voltage monitor relay, 2.5 lbs., Form C contacts.

Frequently Asked Questions

What is a capacitor trip device (CTD)?

A capacitor trip device stores energy from an AC source and releases it to trip a circuit breaker during a power outage or fault condition. CTDs ensure breakers can operate even when control power is lost. Our models range from 4.72J to 21.5J trip energy for various switchgear applications.

What is an arc flash relay?

An arc flash relay detects dangerous arc flash events inside switchgear enclosures and initiates rapid breaker tripping to minimize equipment damage and personnel injury. Our AFGF series relays provide arc flash detection with optional integrated ground fault protection and fuse conservation features.

What is the difference between GFL, GFM, and GFP ground fault devices?

GFL is a zero-sequence ground fault sensor (toroidal CT). GFM sensors are current sensors that pair with the GFM-200 relay. GFP is a complete ground fault relay with inverse time-delay characteristics — it's the modern replacement for the legacy BGFL relay. Each serves different protection needs depending on your switchgear configuration.

What is an open circuit protector (OCP)?

An open circuit protector monitors CT secondary circuits and prevents dangerous high-voltage conditions that occur when a CT secondary is accidentally opened under load. Our OCP-1 is single-phase and OCP-3 is three-phase. Both are essential safety devices for switchgear with instrument transformers.