Progressive FAQ's (Frequently Asked Questions)

Voltage Protection Models (EMS)

• Should a Hardwired EMS be installed before or after the transfer switch?

A hardwired EMS should be installed prior to the transfer switch.  The reason for this is RV generators already have built-in voltage and frequency protection. If the EMS is installed after the transfer switch, this leaves the transfer switch vulnerable to power problems.

• Can I use an adapter and maintain full protection?

Yes. An adapter can be used and the RV will maintain full surge protection.

• Is there a difference in protection between the different EMS models?

No. All EMS's offer the same protection.

• Can I add a second remote display to the wired in models?

Yes, but only to the EMS-HW30C and EMS-HW50C models. An additional remote cannot be added to the LC-HW30 and LC-HW50 models.

Surge Protection Models (SSP)

• Can I use an adapter and maintain full surge protection?

Yes. An adapter can be used and the RV will maintain full surge protection.

• Will these models provide voltage protection?

No. The surge protector models do not include voltage protection. The surge protectors strictly provide protection during an actual power surge. However, Progressive Industries surge protection units have additional features which include a built-in surge status indicator that notes the condition of the surge protector, plus a dual line polarity tester that checks the status of the source prior to use. For complete protection, we recommend our EMS units.

• Will these models provide wiring protection?

No. The surge protectors do not provide wiring protection. They will identify an improper wire condition.

• Will these models automatically reset?

Yes, they will automatically reset.