Authorised Unison partner◆ Single PO · single point of accountability◆ Partner pricing · warranty handled at Peenya◆ Solid-state relays & thyristor power control◆ Stock on the floor in Bengaluru◆ Authorised Unison partner◆ Single PO · single point of accountability◆ Partner pricing · warranty handled at Peenya◆ Solid-state relays & thyristor power control◆ Stock on the floor in Bengaluru◆
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↳ 03 · Motion & power

Unison

Solid-state relays · power controllers · est. 1992

Pioneer SSR manufacturer since 1992, headquartered in Ahmedabad. UL-approved, ISO 9001:2015 certified solid-state relays for resistive heating and switching — made in India, stocked at Peenya.

Request a quote → See the range ↓
↳ Why we stock Unison

Pioneer SSR manufacturer since 1992 — global certification, Indian-speed turnaround.

↳ 01 / 03

Pioneer since 1992

India's original SSR manufacturer — 46,300 sq ft facility with SMT clean rooms, exporting to customers worldwide with UL (E481640) and CE approvals.

↳ 02 / 03

Full range, up to 200 A

Zero-cross, phase-angle, burst-fire, DC–DC, 3-phase, slim DIN-rail and communication SSRs — all under one roof, stocked at Peenya.

↳ 03 / 03

ISO 9001 & ISO 14001

Dual-certified quality and environmental management — the same traceability that earns Unison a place in Toshiba, JP Extrusiontech and 300-crore group accounts.

↳ Product range

The Unison catalogue

The families we specify, stock and support most. Need a part number that isn't here? It's one message away.

Unison — Single-phase SSR
↳ 01 Solid-state relay

Single-phase SSR

Zero-cross single-phase solid-state relays for clean, silent switching of resistive loads. Ships with a matched heatsink sized to the current rating — no separate sink to size or source.

Zero-crossHeatsinkUp to 90A
↳ Resource RDA specification (PDF)
Popular models we quote
  • Model 901 · 45 mm zero-cross · 25–90 A
  • Model 801 / 803 · 22.5 mm plug-in
  • Model 807 plug-in · 4–8 A
Representative — any Unison part number can be quoted.
Unison — Three-phase SSR
↳ 02 Solid-state relay

Three-phase SSR

Three-phase SSR assemblies for balanced switching of larger heater banks, factory-mounted on a heatsink sized for continuous three-phase duty.

3-phaseIntegrated sinkStatus LED
Balanced three-phase loads
↳ Resource 905 Three-phase SSR specification (PDF)
Popular models we quote
  • Model 905 three-phase
  • 3-ph assemblies on heatsink
Representative — any Unison part number can be quoted.
Unison — Thyristor power controllers
↳ 03 Power control

Thyristor power controllers

Phase-angle and burst-fire power controllers for proportional heater control.

Phase-angleBurst-fire4–20mA
Proportional heater power
↳ Resource Thyristor SSR specification (PDF)
Popular models we quote
  • Burst-fire controllers
  • Phase-angle controllers
  • 4–20 mA / 0–10 V control
Representative — any Unison part number can be quoted.
Unison — DC output SSR
↳ 04 Solid-state relay

DC output SSR

DC-control and DC-output solid-state relays for switching DC loads directly from PLC transistor outputs.

DC–DC4–32V controlStatus LED
Switching DC heaters & loads
Popular models we quote
  • Model 703 / 704 PCB-mount
  • MOSFET relays · 55–900 VDC
  • 5–35 A DC ratings
Representative — any Unison part number can be quoted.
Unison — Analog-input SSR
↳ 05 Power control

Analog-input SSR

Phase-angle SSRs with 4–20 mA / 0–10 V analog control for proportional output straight from a PID loop, mounted on a heatsink matched to the load.

4–20mA0–10VPhase-angle
Proportional control from PID
Popular models we quote
  • Phase-angle analog SSRs
  • 4–20 mA / 0–10 V input
Representative — any Unison part number can be quoted.
Unison — Reversing SSR contactors Unison — Reversing SSR contactors, DIN-rail unit
↳ 06 Motion

Reversing SSR contactors

Solid-state forward/reverse contactors for jogging and reversing small three-phase motors — no arcing, no contact wear.

Fwd / RevInterlocked3-phase
Motor jog & reverse duty
Popular models we quote
  • Interlocked fwd / rev modules
  • Up to 1 HP, 3-ph variants
Representative — any Unison part number can be quoted.
Unison — Two-phase / duplex SSR
↳ 07 Solid-state relay

Two-phase / duplex SSR

Duplex SSR modules switching two phases from one compact body — a space-saver on split-phase heater banks.

DuplexTwo-phaseCompact body
Split-phase heater switching
Popular models we quote
  • Model 902 two-phase duplex
Representative — any Unison part number can be quoted.
Unison — Current & motor monitoring relay
↳ 08 Motor protection

Current & motor monitoring relay

Clamp-style current monitoring relays that trip on over-current, under-current or a broken drive belt.

Clamp-on CTOver/under-currentRelay output
Motor & pump protection
Popular models we quote
  • Current monitoring relays
  • Split-core CT sensing
Representative — any Unison part number can be quoted.
Unison — Single-cycle drop-out motor protection relay
↳ 09 Motor protection

SCDD motor protection relay

Single-cycle drop-out detection relay for fast nuisance-trip-free protection on motor and pump circuits.

Single-cycleFast tripDIN-rail
Motor circuit protection
Popular models we quote
  • SCDD protection relay series
Representative — any Unison part number can be quoted.
Unison — Remote monitoring app
↳ 10 Monitoring

Remote monitoring app

Companion app giving live SSR and motor-protection status across the panel from a phone or tablet.

Live statusIO-LinkMobile
Remote panel visibility
↳ Where it runs

On the floor in Unison lines we've built.

Heat-treatmentPlastics & extrusionOvens & furnacesPackaging seal bars
↳ Pairs with

Other brands on the same PO

Every brand below ships under one purchase order, one warranty path, one point of accountability.

05 · Wiring & power Sbee View catalogue → 01 · Logic & interface Multispan View catalogue → 03 · Motion & power Festo View catalogue → ↳ All partners 13 brands Back to catalogue →
↳ Common questions

Asked about Unison

Direct answers — the same ones we give on the phone.

Is INSYS an authorised Unison dealer in Bangalore?

Yes. INSYS Electrical & Controls Pvt Ltd is an authorised Unison channel partner operating from Peenya Industrial Area, Bengaluru. We supply solid-state relays and thyristor power controllers across Karnataka and the rest of India at partner pricing, with warranty handled locally at Peenya.

Do you keep Unison stock in Bengaluru?

The most commonly specified Unison lines are stocked at our Peenya warehouse. Anything not on the shelf is sourced through the authorised channel — we quote within one working day either way.

How do I get a price for a Unison part number?

Email the part number or your component list to marketing@insyselectrical.in, or call +91 96061 11051. Quotes turn around in one working day, and Unison items ship on the same PO as our other twelve brand lines.

Spec'ing Unison?
Put it on one PO.

Request a quote → See it in projects →