VPR-33
VPR-33 Voltage Protection Relay
DIN-rail 3Ø4W/3Ø3W protection relay, self-powered
3Ø4W / 3Ø3W
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Multispan comparison
Multispan VPR-33 vs VPR-35 — Which 3-Phase Protection Relay?
Both are DIN-rail voltage-protection relays; the VPR-35 adds a single-phase mode and a display over the three-phase-only VPR-33. Compare and choose.
The VPR-33 and VPR-35 are DIN-rail voltage-protection relays for three-phase supplies, guarding against over/under-voltage, phase failure and phase sequence. The VPR-33 is a self-powered 3Ø4W / 3Ø3W relay; the VPR-35 additionally supports single-phase (1Ø2W) and adds a display for a live voltage readout. Choose the VPR-35 when you want an on-device display or need to cover single-phase circuits too.
Which to choose
Which should you choose?
Choose the VPR-33
For a straightforward, self-powered three-phase (3Ø4W / 3Ø3W) protection relay where you do not need an on-device display.
Choose the VPR-35
When you want a live voltage display, or need to protect single-phase (1Ø2W) as well as three-phase circuits from one part number.
The models
Compare the models directly
VPR-35
VPR-35 Voltage Protection Relay
DIN-rail 3Ø4W/3Ø3W/1Ø2W protection relay with display
3Ø4W / 3Ø3W / 1Ø2W selectable
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FAQ
VPR-33 vs VPR-35
What is the difference between Multispan VPR-33 and VPR-35?
Both are DIN-rail three-phase voltage-protection relays. The VPR-33 is self-powered 3Ø4W / 3Ø3W with no display; the VPR-35 adds a single-phase (1Ø2W) mode and a display for live voltage readout.
Does the Multispan VPR-35 work on single phase?
Yes — the VPR-35 supports 1Ø2W (single-phase) as well as 3Ø4W and 3Ø3W, and adds a display. The VPR-33 is three-phase only.
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